CN113183070B - Central area tool for BNCT accelerator and use method - Google Patents
Central area tool for BNCT accelerator and use method Download PDFInfo
- Publication number
- CN113183070B CN113183070B CN202110265318.2A CN202110265318A CN113183070B CN 113183070 B CN113183070 B CN 113183070B CN 202110265318 A CN202110265318 A CN 202110265318A CN 113183070 B CN113183070 B CN 113183070B
- Authority
- CN
- China
- Prior art keywords
- deflection plate
- positioning
- tool
- plate
- absolute
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000000919 ceramic Substances 0.000 claims description 26
- 238000009434 installation Methods 0.000 claims description 22
- 230000001788 irregular Effects 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 5
- 206010028980 Neoplasm Diseases 0.000 description 11
- 201000011510 cancer Diseases 0.000 description 8
- 238000011282 treatment Methods 0.000 description 6
- 238000000605 extraction Methods 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- ZOXJGFHDIHLPTG-BJUDXGSMSA-N Boron-10 Chemical compound [10B] ZOXJGFHDIHLPTG-BJUDXGSMSA-N 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 238000011394 anticancer treatment Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Particle Accelerators (AREA)
Abstract
The invention discloses a tool and a method for a central area of a BNCT accelerator, wherein the deflection plate tool is used for finely positioning a spiral deflection plate and comprises a part for absolutely positioning the spiral deflection plate and a part for relatively positioning the spiral deflection plate; the part of the tool for carrying out relative positioning on the spiral deflection plate comprises relative positioning of the tool on the height direction between the upper deflection plate and the lower deflection plate, relative positioning in the front-back direction and relative positioning in the left-right direction. A method is also disclosed: the absolute positioning method of the deflection plate tool for the height and horizontal direction of the lower deflection plate; the absolute positioning method of the deflection plate tool on the height and horizontal direction of the upper deflection plate comprises the following steps: the pin hole, the pin and the accurate positioning surface which are precisely matched with the tool are used for positioning, so that the mounting deviation caused by the rectifying quantity and the machining error of the mounting hole is avoided to the maximum extent, and unexpected effects are obtained. The operation is simple, the implementation is easy, the cost is low, and the precision is high.
Description
Technical Field
The invention belongs to the technical field of cyclotron parts, and particularly relates to a central area tool of an accelerator for a BNCT device and a use method thereof.
Background
BNCT (boron neutron capture) cancer treatment is a new cancer treatment mode developed in recent years, and is one of the most advanced anticancer treatment technologies in the world at present, and the principle of the BNCT (boron neutron capture) cancer treatment is that a medicine containing a non-radioactive boron isotope (boron-10) is used as a tumor locating medicine and a neutron capture agent, after the medicine is injected into a human body, the medicine reaches a certain concentration in the tumor, a neutron beam generated by accelerator targeting is used for irradiating the tumor of the human body, and nuclear reaction of the neutron beam and the boron isotope (boron-10) generates radioactive particles, so that cancer cells are destroyed accurately in cancer cells, and normal tissues are not damaged accidentally. Is the only new cancer treatment technology which does not injure normal tissues by mistake and is currently being developed internationally.
The miniaturized BNCT cancer treatment device based on the strong current cyclotron is the latest generation cancer treatment device innovatively developed by the national institute of atomic energy science, and the device realizes the strong current extraction of the strong current of the compact cyclotron of more than 1 milliamp. Although the equipment is advanced, the popularization difficulty is great, one of the biggest difficulties is the installation technology, and the advantages and disadvantages of the installation technology directly influence the efficiency of 1 mA high current extraction. One of the difficulties is the installation of the relative position of the helical deflector plate in the central zone of the accelerator, since the clearance between the upper and lower helical surfaces of the helical deflector plate in the central zone is required to be only 8 mm, the accuracy of this 8 mm must be ensured, all calculations are based on this clearance, and if this accuracy cannot be ensured, the latter hundreds of related calculations will all be overridden. But ensuring a gap of 8 mm is difficult to implement: because the diameter of each mounting hole of the mounting deflection plate is larger than that of the screw thread, a certain amount of rectifying is reserved for the fastening screw so as to be convenient for mounting, each mounting Kong Kuangliang can reach 0.5 mm, about 10 mounting holes and screw holes are needed for mounting one spiral deflection plate, and in addition, the machining errors of the mounting holes and the screw holes are increased, and the precision requirement of 100 micrometers error can be greatly exceeded because of rectifying amount and accumulated superposition deviation of the machining errors of 10 mounting holes and screw holes. The prior art solves the problem by coordinating the errors between 10 mounting holes and threaded holes by means of the hand feeling and experience of the mounting master. However, because the hand feeling and experience of each installation master are different, and the installation master and maintenance of one device cannot be guaranteed to be the same every time, after each maintenance, the device cannot normally work when being installed and reused, and the beam intensity often cannot meet the requirement of 1 milliamp, and in the worst case, the beam cannot be led out due to too large error, and the whole device cannot work due to paralysis. The second difficulty is that the absolute position of the spiral deflection plate in the central area of the accelerator is fixed, the absolute position of the spiral deflection plate in the working state often changes, and due to expansion with heat and contraction with cold or other reasons, even if the absolute position is accurate in a static environment, the absolute position of the spiral deflection plate changes due to long-time working, and the change of the absolute positioning precision also influences the relative positioning precision.
Disclosure of Invention
Aiming at the problems of the prior art, the invention provides a central area tool for a BNCT accelerator and a use method thereof, and aims to solve the problems that the difficulty of installing equipment is extremely high and batch popularization and use cannot be realized due to the fact that the installation accuracy is reduced only by means of personal experience of an installation master and long-term operation of the equipment in the prior art.
The invention provides the following technical scheme for solving the technical problems.
1A, 1b and 1d, a tooling for a BNCT accelerator central zone comprises a spiral deflection plate 2 for deflecting beam, a beam limiting plate assembly 3 for clamping the beam passing through the spiral deflection plate, a flange plate assembly 1 for supporting a lower deflection plate 202 and simultaneously radiating heat to the spiral deflection plate 2, an upper heat-conducting ceramic pad 6, a lower heat-conducting ceramic pad 7 and a ceramic insulating cover 8; an upper insulating support assembly 4 for powering the helical deflector plate 2 and supporting the upper deflector plate 201, a lower insulating support assembly 5 connected to and powering the lower deflector plate 202, a high frequency chamber head 9, 10 for accelerating particles in the central region of the accelerator; as shown in fig. 1a, the fixture comprises a deflection plate fixture 11 and a head flange fixture 12, as shown in fig. 1d, the deflection plate fixture 11 is used for installing the spiral deflection plate 2, the beam limiting plate assembly 3, the heat conducting ceramic assembly, the upper insulating support assembly 4 and the lower insulating support assembly 5; referring to fig. 1a, as shown in fig. 1D, the head flange tooling 12 is used to position the assembled flange assembly 1 and spiral deflection plate 2 to the magnet and the high frequency cavity heads 9, 10 to the respective high frequency cavity D plates;
the deflection plate tooling 11 is used for fine positioning of the spiral deflection plate 2 and comprises a part for absolute positioning of the spiral deflection plate 2 and a part for relative positioning of the spiral deflection plate 2; the part of the tool for absolute positioning of the spiral deflection plate 2 comprises a part for absolute positioning of the tool for the lower deflection plate 202 and a part for absolute positioning of the tool for the upper deflection plate 201; the part of the tooling for relatively positioning the spiral deflection plate 2 comprises the relative positioning of the tooling in the height direction between the upper deflection plate 201 and the lower deflection plate 202, the relative positioning in the front-back direction and the relative positioning in the left-right direction.
The absolute positioning of the tool on the lower deflection plate 202 comprises the absolute positioning in the height direction, the absolute positioning in the front-back direction and the absolute positioning in the left-right direction, and the absolute positioning in the height direction is realized by matching the lower deflection plate matching end face 11-A2 of the tool with the lower deflection plate end face 2-B2; the front-rear direction absolute positioning and the left-right direction absolute positioning are realized by combining the abutting contact of the tool lower deflection plate side positioning surface 11-A3 and the lower deflection plate side end surface 2-B3 together through the matching of the tool deflection plate positioning holes 11-31 with the A deflection plate positioning pins 2-D1 and the matching of the tool deflection plate positioning holes 2-31.
The absolute positioning of the tool on the upper deflection plate 201 comprises the absolute positioning in the height direction, the absolute positioning in the front-back direction and the absolute positioning in the left-right direction; the absolute positioning in the height direction is matched with the upper deflection plate end face 2-B1 through the upper deflection plate matching end face 11-A1 of the tool, and the absolute positioning in the height direction is realized by means of the matching of the height positioning holes 11-L1, 11-L2 and 11-L3 of the deflection plates and the height positioning holes 2-L1, 2-L2 and 2-L3 of the deflection plates of the tool; the absolute positioning in the front-rear direction is performed through the tool deflection plate positioning holes 11-31, the tool deflection plate front-rear positioning holes 11-32, the deflection plate positioning pins 2-D1 and the deflection plate positioning pins 2-D2 which are in contact with the upper deflection plate front-rear positioning surfaces 2-C3 and 2-C4, so that the absolute positioning in the front-rear direction of the upper deflection plate 201 is completed; the absolute positioning in the left-right direction is matched with the upper deflection plate positioning holes 2-32 through the tool deflection plate side positioning holes 11-33 and the deflection plate side positioning pins 2-D3, and meanwhile, the absolute positioning in the front-back direction is combined to jointly complete the absolute positioning in the left-right direction of the upper deflection plate 201.
The tooling performs relative positioning in the height direction between the upper deflection plate 201 and the lower deflection plate 202, specifically: the height difference between the upper deflection plate matching end face 11-A1 of the tool and the lower deflection plate matching end face 11-A2 of the tool is used as a standard for the relative positioning of the height directions between the two spiral faces of the upper deflection plate and the lower deflection plate, after the lower deflection plate 202 is fixed, the lower deflection plate matching end face 11-A2 of the tool is buckled on the lower deflection plate end face 2-B2, the upper deflection plate end face 2-B1 is made to be close to the upper deflection plate matching end face 11-A1 of the tool, and meanwhile, the relative positioning of the upper deflection plate 201 and the lower deflection plate 202 in the height directions is completed by means of the matching of the tool deflection plate height positioning holes 11-L1, 11-L2 and 11-L3 and the deflection plate height positioning holes 2-L1, 2-L2 and 2-L3.
The tooling performs relative positioning in the front-rear direction between the upper deflection plate 201 and the lower deflection plate 202, specifically: the front-rear distance between the tool deflection plate positioning holes 11-31 and the tool deflection plate front-rear positioning holes 11-32 is used as a standard for front-rear relative positioning of the upper deflection plate 201 and the lower deflection plate 202, the tool deflection plate positioning holes 11-31 are used for positioning the longitudinal position of the lower deflection plate 202 in combination with the tool deflection plate side positioning surface 11-A3, the tool deflection plate positioning holes 11-31 are used for positioning the longitudinal position of the upper deflection plate 201 in combination with the tool deflection plate front-rear positioning holes 11-32, and therefore front-rear relative positioning between the upper deflection plate and the lower deflection plate is completed.
The tooling is used for carrying out left-right direction relative positioning between an upper deflection plate 201 and a lower deflection plate (202), and specifically comprises the following steps: the distance between the left and right of the tool deflection plate positioning holes 11-31 and the tool deflection plate side positioning holes 11-33 is used as a standard for the left and right relative positioning of the upper deflection plate 201 and the lower deflection plate 202, the transverse position of the lower deflection plate 202 is positioned by adopting the tool deflection plate positioning holes 11-31 and combining the tool deflection plate side positioning surfaces 11-A3, and the transverse position of the upper deflection plate 201 is positioned by adopting the tool deflection plate side positioning holes 11-33 and combining the tool deflection plate positioning holes 11-31 and the tool deflection plate front and rear positioning holes 11-32, so that the left and right relative positioning between the two is completed.
Based on the tooling, the invention designs an accelerator central area structure installation method, which is characterized by comprising the following steps:
step one, assembling a flange plate assembly 1;
As shown in fig. 3, a lower flange 102 is shown, the flange assembly 1 includes an upper flange 101 and a lower flange 102, the lower flange 102 is provided with a raised annular beam channel with an irregular annular wall, the bottom end of the irregular annular beam channel is the upper surface of the lower flange 102, the top end of the irregular annular beam channel is the lower surface of the upper flange 101, the top end of the irregular annular beam channel is provided with a plurality of threaded holes, and the upper flange and the lower flange are fixedly connected through the threaded holes.
Step two, installing a heat conducting ceramic pad, a lower insulating support assembly 5 and a lower deflection plate 202;
the method specifically comprises the following steps:
1) The lower heat-conducting ceramic pad 7 is arranged on the lower flange 102 of the flange plate assembly 1, and the ceramic insulating cover 8 is arranged on the lower heat-conducting ceramic pad 7;
2) The lower insulating support assembly 5 is arranged on the lower flange 102 of the flange assembly 1 and is fixed;
3) The lower deflector 202 is placed on the lower thermally conductive ceramic pad 7 and the mounting holes 1-64 on the lower flange 102 are mated with the lower deflector screw holes 2-L5 of fig. 5a through the insulating screw L1 of fig. 1b to mount the lower deflector on the lower flange 102, but the insulating screw L1 is not tightened at this time.
Step three, installing a deflection plate tool 11;
The method specifically comprises the following steps: the deflection plate tool 11 is arranged on irregular inner holes 1-63 of the flange assembly in the central area of the assembled flange assembly 1: as shown in fig. 4b, the installation and the positioning of the deflection plate tooling 11 are completed by matching the tooling deflection plate positioning bosses 11-T with the flange assembly inner holes 1-63 with irregular central areas of the flange assembly 1 and embedding the tooling deflection plate positioning bosses 11-T into the flange assembly inner holes 1-63 with irregular central areas of the flange assembly 1; after the deflection plate tooling 11 is positioned, fine positioning of the upper deflection plate 201 and the lower deflection plate 202 is based on the deflection plate tooling 11, and the previous positioning of the upper deflection plate 201 and the lower deflection plate 202 is coarse positioning.
Step four, absolute positioning of the deflection plate tool 11 on the height and horizontal direction of the lower deflection plate 202; the method specifically comprises the following steps:
1) Absolute positioning of the lower deflector plate 202 in the height direction: the matching of the tool lower deflection plate matching end face 11-A2 of FIG. 4B and the lower deflection plate end face 2-B2 of FIG. 5a is used as the height positioning standard of the lower deflection plate 202;
2) Absolute positioning of the lower deflector plate 202 in the horizontal direction: the tool deflection plate positioning holes 11-31 are matched with the deflection plate positioning pins 2-D1 and are matched with the lower deflection plate positioning holes 2-31, and meanwhile, the tool deflection plate side positioning surfaces 11-A3 of FIG. 4B are combined to be abutted against the lower deflection plate side end surfaces 2-B3 of FIG. 5a to realize the absolute positioning of the lower deflection plate in the front-rear direction and the absolute positioning in the left-right direction.
Fifthly, positioning the upper insulating support assembly 4, the upper deflection plate 201 and the beam limiting plate assembly 3; the method specifically comprises the following steps:
1) Removing the deflection plate tool 11;
2) The upper insulating support assembly 4 is arranged on the flange plate assembly 1:
3) Screwing the upper deflector plate 201 with the upper insulating support assembly 4: by connecting mounting holes 4-L1 on the insulating support member 4 of FIG. 5 b;
4) The beam limiting plate assembly 3 is arranged on the upper flange plate 101 of the flange plate assembly 1;
5) The deflection plate tool 11 is arranged on the flange plate assembly 1;
6) As shown in fig. 1d, a screw 3-L1 attached to the side end surface of the beam limiting plate assembly 3 screws the upper deflector 201 and the side surface of the beam limiting plate assembly 3 together.
Step six, absolute positioning of the deflection plate tool 11 on the height and horizontal direction of the upper deflection plate 201:
the method specifically comprises the following steps:
1) Positioning of the upper deflector plate 201 in the height direction: the upper deflection plate matching end face 11-A1 of the tooling is matched with the upper deflection plate end face 2-B1, and absolute positioning of the upper deflection plate 201 in the height direction is realized by means of the matching of the tooling deflection plate height positioning holes 11-L1, 11-L2 and 11-L3 and the deflection plate height positioning holes 2-L1, 2-L2 and 2-L3;
2) Positioning of the upper deflector plate 201 in the horizontal direction: the tool deflection plate positioning holes 11-31, the tool deflection plate front and rear positioning holes 11-32, the deflection plate positioning pins 2-D1 and the deflection plate positioning pins 2-D2 are abutted against the upper deflection plate front and rear positioning surfaces 2-C3 and 2-C4, so that the absolute positioning of the upper deflection plate 201 in the front and rear direction is completed; the absolute positioning in the left-right direction is matched with the upper deflection plate positioning holes 2-32 through the tool deflection plate side positioning holes 11-33 and the deflection plate side positioning pins 2-D3, and meanwhile, the absolute positioning in the front-back direction is combined to jointly complete the absolute positioning in the left-right direction of the upper deflection plate 201.
Step seven, fixing the assembled flange plate assembly 1 and the spiral deflection plate 2 on the central position of the cyclotron;
step eight, accurately mounting the head flange tool 12 on the corresponding magnet of the heads 9 and 10; the method comprises the following steps:
The head flange tool 12 is symmetrically provided with positioning holes 12-41 and positioning holes 12-51 at 180 degrees, and the head flange tool 12 is precisely installed on the magnets on one sides of the heads 9 and 10 of the high-frequency cavity through the magnet positioning pins D4 and D5 symmetrically arranged on the tool by means of the corresponding positioning holes on the symmetrical magnets.
Step nine, accurately fixing the flange plate assembly 1 and the spiral deflection plate 2 on a magnet by a head flange tool 12; the method comprises the following steps:
By means of the pins D6 and D7, the positioning holes 12-61 and 12-71 on the head flange tool 12 and the positioning holes 1-62 and 1-72 on the flange plate assembly 1 accurately fix the flange plate assembly 1 and the spiral deflection plate 2 on the magnet.
Step ten, the head flange tool 12 accurately fixes the heads 9 and 10 on the respective high-frequency cavity D plates; the method comprises the following steps:
1) Accurate positioning of the head 9: by means of the pins D8 and D9, the head 9 is accurately fixed on the corresponding high-frequency cavity D plate through the positioning holes 12-81 and 12-91 on the head flange tool 12 and the positioning holes 9-82 and 9-92 on the head 9.
2) The head 10 is precisely positioned: the head flange tool 12 is accurately mounted on the magnet on one side of the head 10 by means of the positioning holes P41 and P51 on the head flange tool 12, corresponding positioning holes on the magnet and the positioning pins D4 and D5. By means of the pins D8 and D9, the positioning holes P81 and P91 on the head flange tool 12 and the positioning holes 10-83 and 10-93 on the head 10 accurately fix the head 10 on the corresponding high-frequency cavity D plate.
1. According to the invention, the mounting fixture is adopted to replace the mounting experience of a mounting master, the pin holes, the pins and the accurate positioning surfaces which are precisely matched with the fixture are used for positioning, so that the mounting deviation caused by the frame quantity and the machining error of the mounting holes is avoided to the maximum extent, and unexpected effects are obtained. The spiral deflection plate is accurately positioned and installed on the flange plate assembly by adopting a deflection plate tool, the flange plate assembly and the spiral deflection plate are accurately positioned and installed on the magnet by adopting a head flange tool, and the heads of the high-frequency cavities are accurately positioned and installed on the respective high-frequency cavity D plates. The installation method is simple to operate, easy to implement, low in cost and high in precision, and can ensure that the beam is deflected from the vertical direction to the horizontal direction and is accelerated to be led out through high frequency and high pressure.
2. According to the invention, the tool is added between all parts in the accelerator central area to serve as a bridge for connecting all parts, and indirect connection between all parts is established through the tool, so that accurate positioning of 'space' can be achieved between all objects which are not directly connected with each other, and compared with the effect of a method for measuring and estimating by using a caliper manually before combination, the effect after combination is much better.
3. The invention provides a general installation method of a central area of a BNCT medical cyclotron, and similar central area installation on the cyclotron can be realized by adopting the method.
Drawings
FIG. 1a is a diagram showing the effect of using a plurality of tools in a central area of the present invention;
FIG. 1b is a cross-sectional view of section A-A of FIG. 1 a;
FIG. 1c is a cross-sectional view B-B of FIG. 1 a;
FIG. 1d is a perspective view of the central area structure of the present invention;
FIG. 1e is a cross-sectional view of a center section insulating support assembly of the present invention;
FIG. 2 is a schematic view of a head flange tooling of the present invention;
FIG. 3 is a top view of the lower flange of the present invention;
FIG. 4a is a top view of a deflector tooling of the present invention;
FIG. 4b is a bottom view of the deflector tooling of the present invention;
FIG. 4c is a schematic view of an upper deflector plate installation of the present invention;
FIG. 5a is a schematic top view of a deflector plate of the present invention;
FIG. 5b is a schematic view of an upper deflector plate support column of the present invention;
FIG. 5c is a schematic view of the front-to-back positioning of the upper deflector plate of the present invention;
FIG. 6 is a schematic diagram of a central zone tooling application scenario of the present invention;
In the figure:
1: a flange plate assembly; 101: an upper flange plate; 102: a lower flange; 103: a water pipe; 1-62, 1-72: the flange and the deflection plate are positioned to the pin hole of the magnet; 1-63: an inner hole of the flange component; 1-64: a lower deflector mounting hole; 2: a helical deflector plate; 201: an upper deflector plate; 202: a lower deflector plate; 2-B1: upper deflector end face, 2-B2: a lower deflector plate end face; 2-B3: a lower deflector side end surface; 2-31: positioning holes of the lower deflection plate; 2-32: positioning holes of the upper deflection plate; 2-D1: a, locating pins of a deflection plate; 2-D2: b, locating pins of the deflection plates; 2-D3: a deflector side locating pin; 2-C3, 2-C4: front and rear positioning surfaces of the deflection plate; 2-L1, 2-L2, 2-L3: a deflector plate height positioning hole; 2-L4: a lower deflector mounting hole; 2-L5, screw holes of the lower deflection plate; 3: a beam limiting plate assembly; 301: a beam limiting plate; 302: a support block 1;303: a support block 2;3-L1: the beam limiting assembly side is connected with a screw; 4: an upper insulating support assembly; 401: an upper support rod; 4-L1: an upper deflector mounting hole; 402: the electric pole is touched; 403: an upper insulating column 1;404: an upper insulating column 2; 5: a lower insulating support assembly; 501: a lower support rod; 502: a lower electric shock column; 502: a lower contact pole; 504: a lower insulating column 1;505: a lower insulating column 2;506: a lower insulating column 3;507: a lower insulating column 4;6: a heat conducting ceramic pad is arranged on the upper part; 7: a lower thermally conductive ceramic pad; 8: a ceramic insulating cover; 9: a head; 9-82, 9-92: positioning holes on the head; 10: a head; 10-83, 10-93: positioning holes on the head; 11: a deflection plate tool; 11-L1, 11-L2, 11-L3: tool deflection plate height positioning holes, 11-31: locating holes of tool deflection plates; 11-32: front and rear positioning holes of a tool deflection plate; 11-33: positioning holes on the side of the tool deflection plate; 11-T, positioning a boss of a tool deflection plate; 11-A1: the end face of the deflection plate is matched with the tool; 11-A2: the lower deflection plate of the tool is matched with the end face; 11-A3: a side locating surface of a lower deflection plate of the tool; 12: a head flange tool; 12-41, 12-51: positioning the tool to the magnet pin hole; 12-61, 12-71: the flange and the deflection plate are positioned to the magnet pin hole; 12-81, 12-91: the head is positioned to the D plate pin hole; d4, D5: the tool is positioned to the magnet pin; d6, D7: a flange and a pin for positioning the deflection plate to the magnet; d8, D9: the head is positioned to the D plate pin; l1: an insulating screw;
Detailed Description
Principle of design of the invention
1. And replacing artificial experience with a tool. The artificial experience method coordinates the errors of each installation Kong Kuangliang, but the installation result has larger deviation by virtue of the artificial experience, the total error cannot be zero, and the deviation and absolute position of each installation are different, so that the installation precision is lower, and the repeatable precision is lower. The tool replaces human experience, the feasibility is that the accurate matched pin and the accurate positioning surface are adopted for positioning, the installation precision and the repeatable precision of a central area can be ensured, the difficult problem of errors caused by installation Kong Kuangliang is avoided to the greatest extent, and the design idea of the tool is that: the pin holes of each pin on the tool are designed and calculated in advance accurately and are matched with the structure of the central area precisely, and all parts of the central area of the accelerator are aligned towards the tool on the basis that the absolute positioning of each tool in the central area of the accelerator is ensured to be accurate by taking each hole and each surface on the tool as references, so that the fine positioning of each part of the central area of the accelerator is indirectly realized.
2. Coarse positioning and fine positioning: the upper insulating support assembly 4 and the lower flange 102 are used for roughly positioning the upper deflection plate 201 and the lower deflection plate 202 respectively, the upper deflection plate 201 is roughly positioned by inserting an upper insulating support column into a corresponding round hole of the upper deflection plate, wherein a positioning body is connected with a flat plate beside a cylinder, the end face of the positioning body is in the shape of a whistle, the whistle comprises a cylinder and a flat plate part, as shown in fig. 5b, 2 mounting holes 4-L1 are formed in the flat plate, and the 2 mounting holes 4-L1 are used for roughly positioning the upper deflection plate; mounting holes 1-64 on lower flange 102 cooperate with lower deflector screw holes 2-L5 via insulating screws L1 to coarsely position the lower deflector on lower flange 102. Because each mounting hole of the upper deflection plate and the lower deflection plate has a frame quantity approaching 0.5 mm, and the machining of each hole has errors, the rough positioning stage has deviation. One of the fine positioning is the fine positioning of the entire helical deflector plate: fine positioning must be performed using a deflector tooling: on the basis of coarse positioning of the upper deflection plate and the lower deflection plate, fine positioning is performed by using a tool in three steps, and the method comprises the following steps: absolute positioning of the deflector tooling 11 relative to the entire accelerator center; and a second step of: fine positioning of the deflector tooling 11 relative to the lower deflector 202; and a third step of: fine positioning of the deflector tooling 11 relative to the upper deflector 201, after the third step is completed, fine relative positioning and respective fine absolute positioning between the upper deflector 201 and the lower deflector 202 are completed; the second fine positioning is fine positioning of the head flange tooling 12 relative to the magnet for the flange plate assembly and deflector plate assembly, and fine positioning of the head flange tooling 12 relative to the magnet for the high frequency cavity head.
3. Relative positioning and absolute positioning: the relative positioning refers to the positioning between the upper spiral surface and the lower spiral surface of the spiral deflection plate, and the absolute positioning refers to the absolute positioning of the spiral deflection plate in the central area of the accelerator. The spiral deflection plate is subjected to expansion caused by heat and contraction caused by cold in the working state, so that the position of the spiral deflection plate which is subjected to absolute positioning in the static environment is changed in the working state, for example, the spiral deflection plate 2 in fig. 5a is easy to rotate around the support column under the condition that only the upper insulating support column 4 is subjected to absolute positioning, so that the relative position between the upper deflection plate and the lower deflection plate is also changed, and finally, the gap precision of the relative positioning of 8 millimeters between the two spiral surfaces is damaged, therefore, the invention also adopts the deflection plate tool 11 to perform the absolute positioning on the spiral deflection plate, and in the invention, the upper deflection plate 201 and the beam limiting assembly 3 are bound, so that the absolute positioning of the upper deflection plate 201 is reinforced.
According to the principle of the invention, the invention designs a tool for the central area of the BNCT accelerator, and the tool for the central area of the BNCT accelerator is shown in the figures 1a, 1b, 1c, 1e and 2,
As shown in fig. 6, the central zone comprises a spiral deflection plate 2 for deflecting the beam, a beam limiting plate assembly 3 for clamping the beam passing through the central zone, a flange plate assembly 1 for supporting a lower deflection plate 202 and simultaneously radiating heat to the spiral deflection plate 2, an upper heat-conducting ceramic pad 6, a lower heat-conducting ceramic pad 7 and a ceramic insulating cover 8; an upper insulating support assembly 4 for powering the helical deflector plate 2 and supporting the upper deflector plate 201, a lower insulating support assembly 5 connected to and powering the lower deflector plate 202, a high frequency chamber head 9, 10 for accelerating particles in the central region of the accelerator; as shown in fig. 1a, the fixture comprises a deflection plate fixture 11 and a head flange fixture 12, as shown in fig. 1d, the deflection plate fixture 11 is used for installing the spiral deflection plate 2, the beam limiting plate assembly 3, the heat conducting ceramic assembly, the upper insulating support assembly 4 and the lower insulating support assembly 5; the head flange tool 12 is used for positioning the assembled flange plate assembly 1 and the spiral deflection plate 2 on a magnet and positioning the heads 9 and 10 of the high-frequency cavities on the D plates of the respective high-frequency cavities;
As shown in fig. 1a and 1d, the deflection plate tooling 11 is used for fine positioning of the spiral deflection plate 2, and comprises a part of the tooling for absolute positioning of the spiral deflection plate 2 and a part of the tooling for relative positioning of the spiral deflection plate 2; the part of the tool for absolute positioning of the spiral deflection plate 2 comprises a part for absolute positioning of the tool for the lower deflection plate 202 and a part for absolute positioning of the tool for the upper deflection plate 201; the part of the tooling for relatively positioning the spiral deflection plate 2 comprises the relative positioning of the tooling in the height direction between the upper deflection plate 201 and the lower deflection plate 202, the relative positioning in the front-back direction and the relative positioning in the left-right direction.
As shown in fig. 4a, 4B, 4c and 5a, the absolute positioning of the tooling on the lower deflection plate 202 includes the absolute positioning in the height direction, the absolute positioning in the front-rear direction and the absolute positioning in the left-right direction, and the absolute positioning in the height direction is realized by matching the mating end surface 11-A2 of the tooling lower deflection plate with the end surface 2-B2 of the lower deflection plate; the front-rear direction absolute positioning and the left-right direction absolute positioning are realized by combining the abutting contact of the tool lower deflection plate side positioning surface 11-A3 and the lower deflection plate side end surface 2-B3 together through the matching of the tool deflection plate positioning holes 11-31 with the A deflection plate positioning pins 2-D1 and the matching of the tool deflection plate positioning holes 2-31.
As shown in fig. 4a, 4b, 4c and 5a, the absolute positioning of the upper deflector 201 by the tool includes the absolute positioning in the height direction, the absolute positioning in the front-rear direction and the absolute positioning in the left-right direction; the absolute positioning in the height direction is matched with the upper deflection plate end face 2-B1 through the upper deflection plate matching end face 11-A1 of the tool, and the absolute positioning in the height direction is realized by means of the matching of the height positioning holes 11-L1, 11-L2 and 11-L3 of the deflection plates and the height positioning holes 2-L1, 2-L2 and 2-L3 of the deflection plates of the tool; the absolute positioning in the front-rear direction is performed through the tool deflection plate positioning holes 11-31, the tool deflection plate front-rear positioning holes 11-32, the A deflection plate positioning pins 2-D1 and the B deflection plate positioning pins 2-D2 which are abutted against the upper deflection plate front-rear positioning surfaces 2-C3 and 2-C4, so that the absolute positioning in the front-rear direction of the upper deflection plate 201 is completed; the absolute positioning in the left-right direction is matched with the upper deflection plate positioning holes 2-32 through the tool deflection plate side positioning holes 11-33 and the deflection plate side positioning pins 2-D3, and meanwhile, the absolute positioning in the front-back direction is combined to jointly complete the absolute positioning in the left-right direction of the upper deflection plate 201.
As shown in fig. 4a, 4b, 5a, and 1d, the tooling performs relative positioning in a height direction between the upper deflector 201 and the lower deflector 202, specifically: the height difference between the upper deflection plate matching end face 11-A1 of the tool and the lower deflection plate matching end face 11-A2 of the tool is used as a standard for the relative positioning of the height directions between the two spiral faces of the upper deflection plate and the lower deflection plate, after the lower deflection plate 202 is fixed, the lower deflection plate matching end face 11-A2 of the tool is buckled on the lower deflection plate end face 2-B2, the upper deflection plate end face 2-B1 is made to be close to the upper deflection plate matching end face 11-A1 of the tool, and meanwhile, the relative positioning of the upper deflection plate 201 and the lower deflection plate 202 in the height directions is completed by means of the matching of the tool deflection plate height positioning holes 11-L1, 11-L2 and 11-L3 and the deflection plate height positioning holes 2-L1, 2-L2 and 2-L3.
As shown in fig. 4a, fig. 4b, fig. 5a, and fig. 1d, the tooling performs relative positioning between the upper deflector 201 and the lower deflector 202 in the front-rear direction, specifically: the front-rear distance between the tool deflection plate positioning holes 11-31 and the tool deflection plate front-rear positioning holes 11-32 is used as a standard for front-rear relative positioning of the upper deflection plate 201 and the lower deflection plate 202, the tool deflection plate positioning holes 11-31 are used for positioning the longitudinal position of the lower deflection plate 202 in combination with the tool deflection plate side positioning surface 11-A3, the tool deflection plate positioning holes 11-31 are used for positioning the longitudinal position of the upper deflection plate 201 in combination with the tool deflection plate front-rear positioning holes 11-32, and therefore front-rear relative positioning between the upper deflection plate and the lower deflection plate is completed.
As shown in fig. 4a, fig. 4b, fig. 5a, and fig. 1d, the tooling performs left-right direction relative positioning between the upper deflection plate 201 and the lower deflection plate (202), specifically: the distance between the left and right of the tool deflection plate positioning holes 11-31 and the tool deflection plate side positioning holes 11-33 is used as a standard for the left and right relative positioning of the upper deflection plate 201 and the lower deflection plate 202, the transverse position of the lower deflection plate 202 is positioned by adopting the tool deflection plate positioning holes 11-31 and combining the tool deflection plate side positioning surfaces 11-A3, and the transverse position of the upper deflection plate 201 is positioned by adopting the tool deflection plate side positioning holes 11-33 and combining the tool deflection plate positioning holes 11-31 and the tool deflection plate front and rear positioning holes 11-32, so that the left and right relative positioning between the two is completed.
Based on the tooling, the invention designs an accelerator central area structure installation method, which is characterized by comprising the following steps:
step one, assembling a flange plate assembly 1;
As shown in fig. 3, a lower flange 102 is shown, the flange assembly 1 includes an upper flange 101 and a lower flange 102, the lower flange 102 is provided with a raised beam extraction area with a spiral deflector 2, the bottom end of the beam extraction area of the spiral deflector 2 is the upper surface of the lower flange 102, the top end of the beam extraction area of the spiral deflector 2 is the lower surface of the upper flange 101, the top end is provided with a plurality of threaded holes, and the upper flange and the lower flange are fixedly connected through the threaded holes.
Step two, installing a heat conducting ceramic pad, a lower insulating support assembly 5 and a lower deflection plate 202;
the method specifically comprises the following steps:
As shown in figures 1b and 3,
1) The lower heat-conducting ceramic pad 7 is arranged on the lower flange 102 of the flange plate assembly 1, and the ceramic insulating cover 8 is arranged on the lower heat-conducting ceramic pad 7;
2) The lower insulating support assembly 5 is arranged on the lower flange 102 of the flange assembly 1 and is fixed;
3) As shown in fig. 1b, 3 and 5a, the lower deflector 202 is disposed on the lower thermally conductive ceramic pad 7 and the mounting holes 1-64 on the lower flange 102 are mated with the lower deflector screw holes 2-L5 of fig. 5a through the insulating screw L1 of fig. 1b to mount the lower deflector on the lower flange 102, but the insulating screw L1 is not tightened at this time.
Step three, installing a deflection plate tool 11;
the method specifically comprises the following steps:
as shown in fig. 3, the deflector tooling 11 is mounted in the central region of the assembled flange assembly 1
Irregular flange assembly bores 1-63: as shown in fig. 4b, the installation and the positioning of the deflection plate tooling 11 are completed by matching the tooling deflection plate positioning bosses 11-T with the flange assembly inner holes 1-63 with irregular central areas of the flange assembly 1 and embedding the tooling deflection plate positioning bosses 11-T into the flange assembly inner holes 1-63 with irregular central areas of the flange assembly 1; after the deflection plate tooling 11 is positioned, fine positioning of the upper deflection plate 201 and the lower deflection plate 202 is based on the deflection plate tooling 11, and the previous positioning of the upper deflection plate 201 and the lower deflection plate 202 is coarse positioning.
Step four, absolute positioning of the deflection plate tool 11 on the height and horizontal direction of the lower deflection plate 202; the method specifically comprises the following steps:
1) As shown in fig. 4b, 4c, 5a, absolute positioning of the lower deflector plate 202 in height: the matching of the tool lower deflection plate matching end face 11-A2 of FIG. 4B and the lower deflection plate end face 2-B2 of FIG. 5a is used as the height positioning standard of the lower deflection plate 202;
2) As shown in fig. 4b, 4c, 5a, absolute positioning of the lower deflector plate 202 in horizontal direction: the tool deflection plate positioning holes 11-31 are matched with the deflection plate positioning pins 2-D1 and are matched with the lower deflection plate positioning holes 2-31, and meanwhile, the tool deflection plate side positioning surfaces 11-A3 of FIG. 4B are combined to be abutted against the lower deflection plate side end surfaces 2-B3 of FIG. 5a to realize the absolute positioning of the lower deflection plate in the front-rear direction and the absolute positioning in the left-right direction.
Fifthly, positioning the upper insulating support assembly 4, the upper deflection plate 201 and the beam limiting plate assembly 3; the method specifically comprises the following steps:
1) Removing the deflection plate tool 11;
2) The upper insulating support assembly 4 is arranged on the flange plate assembly 1:
3) Screwing the upper deflector plate 201 with the upper insulating support assembly 4: by connecting mounting holes 4-L1 on the insulating support member 4 of FIG. 5 b;
4) The beam limiting plate assembly 3 is arranged on the upper flange plate 101 of the flange plate assembly 1;
5) The deflection plate tool 11 is arranged on the flange plate assembly 1;
6) As shown in fig. 1d, a screw 3-L1 attached to the side end surface of the beam limiting plate assembly 3 screws the upper deflector 201 and the side surface of the beam limiting plate assembly 3 together.
Step six, absolute positioning of the deflection plate tool 11 on the height and horizontal direction of the upper deflection plate 201:
the method specifically comprises the following steps:
1) As shown in fig. 4b, 4c and 5a, the upper deflector 201 is positioned in the height direction: the upper deflection plate matching end face 11-A1 of the tooling is matched with the upper deflection plate end face 2-B1, and absolute positioning of the upper deflection plate 201 in the height direction is realized by means of the matching of the tooling deflection plate height positioning holes 11-L1, 11-L2 and 11-L3 and the deflection plate height positioning holes 2-L1, 2-L2 and 2-L3;
2) As shown in fig. 4b, 4c, 5a and 5c, the upper deflector 201 is positioned horizontally: the tool deflection plate positioning holes 11-31, the tool deflection plate front and rear positioning holes 11-32, the A deflection plate positioning pins 2-D1 and the B deflection plate positioning pins 2-D2 are abutted against the upper deflection plate front and rear positioning surfaces 2-C3 and 2-C4, so that the absolute positioning of the upper deflection plate 201 in the front and rear direction is completed; the absolute positioning in the left-right direction is matched with the upper deflection plate positioning holes 2-32 through the tool deflection plate side positioning holes 11-33 and the deflection plate side positioning pins 2-D3, and meanwhile, the absolute positioning in the front-back direction is combined to jointly complete the absolute positioning in the left-right direction of the upper deflection plate 201.
Step seven, fixing the assembled flange plate assembly 1 and the spiral deflection plate 2 on the central position of the cyclotron;
step eight, accurately mounting the head flange tool 12 on the corresponding magnet of the heads 9 and 10; the method comprises the following steps:
as shown in FIG. 1a, the head flange fixture 12 is symmetrically provided with positioning holes 12-41 and positioning holes 12-51 at 180 degrees, and the head flange fixture 12 is precisely installed on the magnets on one side of the heads 9 and 10 of the high-frequency cavity through the magnet positioning pins D4 and D5 symmetrically arranged on the fixture by means of the corresponding positioning holes on the symmetrical magnets.
Step nine, accurately fixing the flange plate assembly 1 and the spiral deflection plate 2 on a magnet by a head flange tool 12; the method comprises the following steps:
As shown in FIG. 1a, the flange assembly 1 together with the helical deflection plate 2 is precisely fixed to the magnet by means of the pins D6, D7, the locating holes 12-61, 12-71 on the head flange tooling 12 and the locating holes 1-62, 1-72 on the flange assembly 1.
Step ten, the head flange tool 12 accurately fixes the heads 9 and 10 on the respective high-frequency cavity D plates; the method comprises the following steps:
1) As shown in fig. 1a, the head 9 is precisely positioned: by means of the pins D8 and D9, the head 9 is accurately fixed on the corresponding high-frequency cavity D plate through the positioning holes 12-81 and 12-91 on the head flange tool 12 and the positioning holes 9-82 and 9-92 on the head 9.
2) As shown in fig. 1a, the head 10 is precisely positioned: the head flange tool 12 is accurately mounted on the magnet on one side of the head 10 by means of the positioning holes P41 and P51 on the head flange tool 12, corresponding positioning holes on the magnet and the positioning pins D4 and D5. By means of the pins D8 and D9, the positioning holes P81 and P91 on the head flange tool 12 and the positioning holes 10-83 and 10-93 on the head 10 accurately fix the head 10 on the corresponding high-frequency cavity D plate.
The central area tool and the use method for the BNCT accelerator are not limited to the specific embodiments, and other embodiments are obtained by a person skilled in the art according to the technical scheme of the invention, and the central area tool and the use method also belong to the technical innovation scope of the invention.
Claims (10)
1. A fixture for a central area of a BNCT accelerator, wherein the central area comprises a spiral deflection plate (2) for deflecting beam, a beam limiting plate assembly (3) for clamping the beam passing through the central area, a flange plate assembly (1) for supporting a lower deflection plate (202) and simultaneously radiating heat for the spiral deflection plate (2), an upper heat-conducting ceramic pad (6), a lower heat-conducting ceramic pad (7) and a ceramic insulating cover (8); an upper insulating support assembly (4) for supplying power to the spiral deflection plate (2) and supporting the upper deflection plate (201), a lower insulating support assembly (5) connected with and supplying power to the lower deflection plate (202), and high-frequency cavity heads (9), (10) for accelerating particles in the central area of the accelerator; the fixture comprises a deflection plate fixture (11) and a head flange fixture (12), wherein the deflection plate fixture (11) is used for installing the spiral deflection plate (2), a beam limiting plate assembly (3), a heat conducting ceramic assembly, an upper insulating support assembly (4) and a lower insulating support assembly (5); the head flange tool (12) is used for positioning the assembled flange plate assembly (1) and the spiral deflection plate (2) on the magnet and positioning the high-frequency cavity heads (9) and (10) on the respective high-frequency cavity D plates;
The method is characterized in that: the deflection plate tool (11) is used for finely positioning the spiral deflection plate (2) and comprises a part for absolutely positioning the spiral deflection plate (2) and a part for relatively positioning the spiral deflection plate (2); the part of the tool for absolute positioning of the spiral deflection plate (2) comprises a part for absolute positioning of the tool for the lower deflection plate (202) and a part for absolute positioning of the tool for the upper deflection plate (201); the part of the tool for relatively positioning the spiral deflection plate (2) comprises the relative positioning of the tool in the height direction between the upper deflection plate (201) and the lower deflection plate (202), the relative positioning in the front-back direction and the relative positioning in the left-right direction; the relative positioning refers to the positioning between the upper spiral surface and the lower spiral surface of the spiral deflection plate, and the absolute positioning refers to the absolute positioning of the spiral deflection plate in the central area of the accelerator.
2. The tooling for the BNCT accelerator central region as claimed in claim 1, wherein: the tool is used for carrying out absolute positioning on the lower deflection plate (202) and comprises absolute positioning in the height direction, absolute positioning in the front-rear direction and absolute positioning in the left-right direction, wherein the absolute positioning in the height direction is matched with the end face (2-B2) of the lower deflection plate through the matching end face (11-A2) of the lower deflection plate of the tool, so that the absolute positioning in the height direction is realized; the front-back direction absolute positioning and the left-right direction absolute positioning are matched with the A deflection plate positioning pin (2-D1) through the tool deflection plate positioning holes (11-31) and matched with the lower deflection plate positioning holes (2-31), and meanwhile, the front-back direction absolute positioning and the left-right direction absolute positioning of the lower deflection plate are realized by combining the abutting contact of the tool lower deflection plate side positioning surface (11-A3) and the lower deflection plate side end surface (2-B3).
3. The tooling for the BNCT accelerator central region as claimed in claim 1, wherein: the absolute positioning of the tool on the upper deflection plate (201) comprises the absolute positioning in the height direction, the absolute positioning in the front-back direction and the absolute positioning in the left-right direction; the absolute positioning in the height direction is matched with the upper deflection plate end face (2-B1) through the upper deflection plate matching end face (11-A1) of the tool, and the absolute positioning in the height direction is realized by means of the matching of the height positioning holes (11-L1), (11-L2) and (11-L3) of the tool deflection plate and the height positioning holes (2-L1), (2-L2) and (2-L3) of the deflection plate; the absolute positioning in the front-rear direction is carried out by abutting the front-rear positioning surfaces (2-C3) and (2-C4) of the upper deflection plate through the tool deflection plate positioning holes (11-31), the tool deflection plate front-rear positioning holes (11-32), the A deflection plate positioning pins (2-D1) and the B deflection plate positioning pins (2-D2), so that the absolute positioning in the front-rear direction of the upper deflection plate (201) is completed; the absolute positioning in the left-right direction is matched with the positioning holes (2-32) of the upper deflection plate through the positioning holes (11-33) on the deflection plate side and the positioning pins (2-D3) on the deflection plate side, and meanwhile, the absolute positioning in the left-right direction of the upper deflection plate (201) is completed jointly by combining the absolute positioning in the front-back direction.
4. The tooling for the BNCT accelerator central region as claimed in claim 1, wherein: the tooling is used for carrying out relative positioning in the height direction between an upper deflection plate (201) and a lower deflection plate (202), and specifically comprises the following steps: the height difference between the upper deflection plate matching end face (11-A1) and the lower deflection plate matching end face (11-A2) of the tool is used as a standard for relative positioning in the height direction between the two spiral faces of the upper deflection plate and the lower deflection plate, after the lower deflection plate (202) is fixed, the lower deflection plate matching end face (11-A2) of the tool is buckled on the lower deflection plate end face (2-B2), then the upper deflection plate end face (2-B1) is abutted against the upper deflection plate matching end face (11-A1) of the tool, and meanwhile, the relative positioning of the upper deflection plate (201) and the lower deflection plate (202) in the height direction is completed by means of the matching of the tool deflection plate height positioning holes (11-L1), (11-L2), (11-L3) and the deflection plate height positioning holes (2-L1), (2-L3).
5. The tooling for the BNCT accelerator central region as claimed in claim 1, wherein: the tool is used for carrying out relative positioning in the front-rear direction between an upper deflection plate (201) and a lower deflection plate (202), and specifically comprises the following steps: the distance between the front and rear of the tool deflection plate positioning holes (11-31) and the front and rear of the tool deflection plate positioning holes (11-32) is used as a standard for the front and rear relative positioning of the upper deflection plate (201) and the lower deflection plate (202), the longitudinal position of the lower deflection plate (202) is positioned by adopting the tool deflection plate positioning holes (11-31) and combining with the tool lower deflection plate side positioning surface (11-A3), and the longitudinal position of the upper deflection plate (201) is positioned by adopting the tool deflection plate positioning holes (11-31) and combining with the tool deflection plate front and rear positioning holes (11-32), so that the front and rear relative positioning between the upper deflection plate and the lower deflection plate is finished.
6. The tooling for the BNCT accelerator central region as claimed in claim 1, wherein: the tooling carries out left-right direction relative positioning between an upper deflection plate (201) and a lower deflection plate (202), and specifically comprises the following steps: the left-right distance between the tool deflection plate positioning holes (11-31) and the tool deflection plate side positioning holes (11-33) is used as a standard for left-right relative positioning of the upper deflection plate (201) and the lower deflection plate (202), the transverse position of the lower deflection plate (202) is positioned by adopting the tool deflection plate positioning holes (11-31) and combining the tool deflection plate side positioning surfaces (11-A3), and the transverse position of the upper deflection plate (201) is positioned by adopting the tool deflection plate side positioning holes (11-33) and combining the tool deflection plate positioning holes (11-31) and the tool deflection plate front-rear positioning holes (11-32), so that left-right relative positioning between the upper deflection plate and the lower deflection plate is completed.
7. The accelerator center area structure mounting method of a tooling for a BNCT accelerator center area according to any one of claims 1 to 6, comprising the steps of:
Step one, assembling a flange plate assembly (1);
step two, installing a heat conducting ceramic pad, a lower insulating support assembly (5) and a lower deflection plate (202);
step three, installing a deflection plate tool (11);
step four, absolute positioning of the deflection plate tool (11) on the height and horizontal direction of the lower deflection plate (202);
Fifthly, positioning an upper insulation supporting assembly (4), an upper deflection plate (201) and a beam limiting plate assembly (3);
Step six, absolute positioning of the deflection plate tool (11) on the height and horizontal direction of the upper deflection plate (201):
step seven, fixing the assembled flange plate assembly (1) and the spiral deflection plate (2) on the cyclotron
The center of the device;
Precisely mounting the head flange tool (12) on the corresponding magnets of the heads (9) and (10);
step nine, accurately fixing a flange plate assembly (1) and a spiral deflection plate (2) on a magnet by a head flange tool (12);
and step ten, accurately fixing the heads (9) and (10) on the respective high-frequency cavity D plates by using a head flange tool (12).
8. The accelerator center area structure mounting method according to claim 7, wherein: the third step specifically comprises the following steps: the deflection plate tool (11) is arranged on an irregular flange group in the central area of the assembled flange plate assembly (1)
On the inner bore (1-63): the tool deflection plate positioning boss (11-T) is matched with the flange assembly inner hole (1-63) with the irregular central area of the flange assembly (1), and the tool deflection plate positioning boss (11-T) is embedded into the flange assembly inner hole (1-63) with the irregular central area of the flange assembly (1), so that the installation and the positioning of the deflection plate tool (11) are completed; after the deflection plate tool (11) is positioned, fine positioning of the upper deflection plate (201) and the lower deflection plate (202) is performed by taking the deflection plate tool (11) as a reference, and positioning of the upper deflection plate (201) and the lower deflection plate (202) before the fine positioning is performed is rough positioning.
9. The accelerator center area structure mounting method according to claim 7, wherein: the fourth step specifically comprises the following steps:
1) Absolute positioning of the lower deflector plate (202) in the height direction: the matching end surface (11-A2) of the lower deflection plate of the tool is matched with the end surface (2-B2) of the lower deflection plate to serve as a height positioning standard of the lower deflection plate (202);
2) Absolute positioning of the lower deflector plate (202) in horizontal direction: the tool deflection plate positioning holes (11-31) are matched with the A deflection plate positioning pins (2-D1) and matched with the lower deflection plate positioning holes (2-31), and meanwhile, the tool deflection plate side positioning surface (11-A3) is combined with the lower deflection plate side end surface (2-B3) to be abutted against to realize the absolute positioning of the lower deflection plate in the front-back direction and the absolute positioning in the left-right direction.
10. The accelerator center area structure mounting method according to claim 7, wherein: the sixth step specifically comprises the following steps:
1) Positioning of the upper deflector plate (201) in the height direction: the upper deflection plate matching end face (11-A1) of the tool is matched with the upper deflection plate end face (2-B1), and the absolute positioning of the upper deflection plate (201) in the height direction is realized by means of the matching of the tool deflection plate height positioning holes (11-L1), (11-L2), (11-L3) and the deflection plate height positioning holes (2-L1), (2-L2) and (2-L3);
2) Positioning of the upper deflector plate (201) in the horizontal direction: the tool deflection plate positioning holes (11-31), the tool deflection plate front and back positioning holes (11-32), the A deflection plate positioning pins (2-D1) and the B deflection plate positioning pins (2-D2) are in contact with the upper deflection plate front and back positioning surfaces (2-C3) and (2-C4), so that the absolute positioning of the upper deflection plate (201) in the front and back direction is completed; the absolute positioning in the left-right direction is matched with the positioning holes (2-32) of the upper deflection plate through the positioning holes (11-33) on the deflection plate side and the positioning pins (2-D3) on the deflection plate side, and meanwhile, the absolute positioning in the left-right direction of the upper deflection plate (201) is completed jointly by combining the absolute positioning in the front-back direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110265318.2A CN113183070B (en) | 2021-05-14 | 2021-05-14 | Central area tool for BNCT accelerator and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110265318.2A CN113183070B (en) | 2021-05-14 | 2021-05-14 | Central area tool for BNCT accelerator and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113183070A CN113183070A (en) | 2021-07-30 |
| CN113183070B true CN113183070B (en) | 2024-05-31 |
Family
ID=76973190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110265318.2A Active CN113183070B (en) | 2021-05-14 | 2021-05-14 | Central area tool for BNCT accelerator and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113183070B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113630952B (en) * | 2021-08-17 | 2022-06-28 | 中国原子能科学研究院 | Physical design method for central area of strong-flow cyclotron |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004053701A1 (en) * | 2004-11-06 | 2006-05-11 | Festool Gmbh | Holding device, has suction holder with flexible suction disk whose boundary region forms revolving sealing ring portion, where detachable position of lower surface of sealing ring portion is arranged above central suction disk area |
| CN106132068A (en) * | 2016-07-29 | 2016-11-16 | 中国原子能科学研究院 | A kind of cyclotron injects line deflecting plates and center device |
| CN207503910U (en) * | 2017-12-13 | 2018-06-15 | 合肥中科离子医学技术装备有限公司 | A kind of verification tooling of superconduction proton therapeutic appts ion source |
| CN207736179U (en) * | 2018-01-12 | 2018-08-17 | 合肥中科离子医学技术装备有限公司 | A kind of tool structure for cyclotron center overall package |
| CN108747910A (en) * | 2018-08-07 | 2018-11-06 | 中广核达胜加速器技术有限公司 | A kind of electron accelerator accelerating tube stickup tooling |
| CN211841705U (en) * | 2019-12-20 | 2020-11-03 | 中广核中科海维科技发展有限公司 | Positioning device for mounting 10MeV electronic linear accelerator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107596579B (en) * | 2017-10-12 | 2018-06-05 | 合肥中科离子医学技术装备有限公司 | Proton therapy system based on compact superconducting cyclotron |
-
2021
- 2021-05-14 CN CN202110265318.2A patent/CN113183070B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004053701A1 (en) * | 2004-11-06 | 2006-05-11 | Festool Gmbh | Holding device, has suction holder with flexible suction disk whose boundary region forms revolving sealing ring portion, where detachable position of lower surface of sealing ring portion is arranged above central suction disk area |
| CN106132068A (en) * | 2016-07-29 | 2016-11-16 | 中国原子能科学研究院 | A kind of cyclotron injects line deflecting plates and center device |
| CN207503910U (en) * | 2017-12-13 | 2018-06-15 | 合肥中科离子医学技术装备有限公司 | A kind of verification tooling of superconduction proton therapeutic appts ion source |
| CN207736179U (en) * | 2018-01-12 | 2018-08-17 | 合肥中科离子医学技术装备有限公司 | A kind of tool structure for cyclotron center overall package |
| CN108747910A (en) * | 2018-08-07 | 2018-11-06 | 中广核达胜加速器技术有限公司 | A kind of electron accelerator accelerating tube stickup tooling |
| CN211841705U (en) * | 2019-12-20 | 2020-11-03 | 中广核中科海维科技发展有限公司 | Positioning device for mounting 10MeV electronic linear accelerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113183070A (en) | 2021-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113183070B (en) | Central area tool for BNCT accelerator and use method | |
| US10470289B2 (en) | Target for neutron-generating device and manufacturing method therefor | |
| EP3357536B1 (en) | Neutron capture therapy system | |
| EP0486497A1 (en) | Facility for producing RADIOISOTOPEs FOR USE in POSITRON EMISSION TOMOGRAPHY | |
| US20050023948A1 (en) | Method and apparatus for maintaining alignment of a cyclotron dee | |
| Smirnov et al. | Modern compact accelerators of cyclotron type for medical applications | |
| EP3708225B1 (en) | Neutron capture therapy system | |
| EP3795214A1 (en) | Neutron capture therapy system and placement table | |
| CN207075114U (en) | A kind of position regulator for superconducting cyclotron draw-out area | |
| CN203664928U (en) | Precision positioning device for laser welding of radioactive airtight brachytherapy source | |
| JP6349299B2 (en) | Magnetic chuck | |
| US20150348739A1 (en) | Electromagnet support frame | |
| CN112911786A (en) | Central area structure for BNCT accelerator | |
| CN113018704B (en) | Leveling and aligning method for high-frequency D plate | |
| JP2019526450A (en) | Hot press tool, its operating method, and corresponding installation and manufacturing method | |
| CN207503910U (en) | A kind of verification tooling of superconduction proton therapeutic appts ion source | |
| CN109925606B (en) | Neutron capture therapy system | |
| CN115884488A (en) | Tantalum and beryllium neutron target system suitable for BNCT | |
| CN112930021A (en) | Leveling and aligning device of high-frequency D plate | |
| CN208336141U (en) | A kind of assembly tooling of cathode assembly | |
| CN110580968B (en) | Neutron catheter | |
| CN207139319U (en) | Wave seat coach arc special tooling | |
| Loong et al. | The pros and cons of preliminary R&D of Boron Neutron Capture Therapy based on compact neutron generators: A plan of collaboration | |
| CN108320832B (en) | Remote control maintenance structure of spallation neutron source target body plug-in unit | |
| CN209881891U (en) | Camera module auxiliary installation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |