CN105555009B - A kind of axis powers on the energy switch of coupled standing wave accelerator tube - Google Patents
A kind of axis powers on the energy switch of coupled standing wave accelerator tube Download PDFInfo
- Publication number
- CN105555009B CN105555009B CN201610035248.0A CN201610035248A CN105555009B CN 105555009 B CN105555009 B CN 105555009B CN 201610035248 A CN201610035248 A CN 201610035248A CN 105555009 B CN105555009 B CN 105555009B
- Authority
- CN
- China
- Prior art keywords
- coupler
- circular hole
- standing wave
- energy switch
- axis
- 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
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H9/00—Linear accelerators
- H05H9/04—Standing-wave linear accelerators
- H05H9/041—Hadron LINACS
- H05H9/044—Coupling cavity LINACS, e.g. side coupled
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/12—Arrangements for varying final energy of beam
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/12—Arrangements for varying final energy of beam
- H05H2007/125—Arrangements for varying final energy of beam by mechanical means, e.g. stripping foils
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Particle Accelerators (AREA)
Abstract
The invention discloses the energy switch that a kind of axis powers on coupled standing wave accelerator tube, it includes the multiple accelerating cavities and coupler being alternately arranged that axis, which powers on coupled standing wave accelerator tube, late piece is equipped between accelerating cavity and coupler, circular hole is equipped in the middle part of late piece, the energy switch includes the pull rod of plate front-end and back-end, the middle part of plate front end is equipped with circular hole, plate front end is inserted into coupler, pull rod is stretched out from the side wall of the coupler, when plate front end is inserted into its circular hole and the circular hole overlapping positions of late on piece, three circular holes form circular waveguide structure.By being inserted and pulled through for energy switch, the energy multi-gear adjustable of medical computerized linear accelerator can be realized.
Description
Technical field
The present invention relates to the energy that a kind of medical computerized linear accelerator more particularly to a kind of axis power on coupled standing wave accelerator tube
Amount switch.
Background technology
Medical computerized linear accelerator is one of the primary treatment regimen in treatment of cancer.It is added by medical electron linear
The beam bombardment of fast device outgoing turns target, generates X-ray, reaches treating cancer to tumour cell is killed using x-ray bombardment
Purpose.According to the difference of lesions position, the X-ray of different-energy is needed to be irradiated, therefore it is required that medical electron linear adds
Fast device has the performance of energy multi-gear adjustable (energy switch).
Medical computerized linear accelerator has traveling wave and standing wave accelerator two types.Wherein standing wave accelerator shunt impedance
Greatly, acceleration efficiency is high, therefore structure is compacter, economy is more preferable, is more suitable for business application.Resident wave accelerating pipe is according to coupling
Conjunction mode difference can be divided into:Side couples and axis-coupled standing wave accelerator tube.Axis couples standing wave tube to be had compared to side coupling accelerating tube
The advantages that lateral dimension is small, homogeneous tube structure is compacter, and axially symmetric structure is convenient for welding.Axis coupling accelerating tube can be divided into again：Magnetic
Couple and be electrically coupled two kinds.Wherein, magnetic coupling mode needs to process gain structure, processing technology in the disc between accelerator module
Also complex；And axis powers on coupled standing wave accelerator tube, without processing gain structure in disc, processing technology is the simplest.
For the energy switch in standing wave accelerator, side couples standing wave tube since its coupler far from axis is distributed in acceleration
It is the most convenient for the setting, installation and adjusting of energy switch on tube wall, therefore current energy switch foreign patent is most
Applied to side coupled structure；On axis magnetic coupling standing wave tube also can by external mechanical tuning device to its gain structure be adjusted to
Have the function that energy switch.And axis most simple for processing technology, that structure is most compact powers on coupled standing wave accelerator tube, energy
Switching technique still belongs to blank.
Invention content
The object of the present invention is to provide a kind of axis for the energy multi-gear adjustable that can realize medical computerized linear accelerator to power on
The energy switch of coupled standing wave accelerator tube.
The purpose of the present invention is what is be achieved through the following technical solutions：
The axis of the present invention powers on the energy switch of coupled standing wave accelerator tube, and it includes handing over that the axis, which powers on coupled standing wave accelerator tube,
It is equipped with late piece for the multiple accelerating cavities and coupler of arrangement, between the accelerating cavity and coupler, circle is equipped in the middle part of the door screen piece
Hole, the energy switch include the pull rod of plate front-end and back-end, and the middle part of the plate front end is equipped with circular hole, before the plate
End is inserted into the coupler, and the pull rod is stretched out from the side wall of the coupler, when the plate front end is inserted into its circle
When circular hole overlapping positions on hole and the partition board, three circular holes form circular waveguide structures.
As seen from the above technical solution provided by the invention, standing wave is electrically coupled on axis provided in an embodiment of the present invention to add
The energy switch of fast pipe can realize that the energy multi gear of medical computerized linear accelerator can by being inserted and pulled through for energy switch
It adjusts.
Description of the drawings
When Fig. 1 is that energy switch does not work in the embodiment of the present invention, axis powers on coupled standing wave accelerator tube some mechanical structure
Schematic diagram.
Fig. 2 is energy switch when not working in the embodiment of the present invention, where coupler mechanical structure schematic diagram.
When Fig. 3 is that energy switch works in the embodiment of the present invention, axis powers on coupled standing wave accelerator tube some mechanical structure and shows
It is intended to.
Fig. 4 be the embodiment of the present invention in energy switch work when, where coupler mechanical structure schematic diagram.
Field distribution schematic diagram on intracavitary axis when Fig. 5 does not work for energy switch in the embodiment of the present invention.
Field distribution schematic diagram on intracavitary axis when Fig. 6 is energy switch work in the embodiment of the present invention.
Specific implementation mode
The embodiment of the present invention will be described in further detail below.
The axis of the present invention powers on the energy switch of coupled standing wave accelerator tube, and preferable specific implementation mode is：
It includes the multiple accelerating cavities and coupler being alternately arranged that the axis, which powers on coupled standing wave accelerator tube, the accelerating cavity with
It is equipped with late piece between coupler, circular hole is equipped in the middle part of the door screen piece, the energy switch includes the pull rod of plate front-end and back-end,
The middle part of the plate front end is equipped with circular hole, and the plate front end is inserted into the coupler, and the pull rod is from the coupling
The side wall of chamber stretches out, when the plate front end is inserted into the circular hole overlapping positions on its circular hole and the partition board, three circular holes
Form circular waveguide structure.
Circular hole in the middle part of the partition board is identical as the circular hole size of plate front center.
The thickness of the plate front end is identical as the thickness of the coupler.
The axis of the present invention powers on the energy switch of coupled standing wave accelerator tube, can realize the energy of medical computerized linear accelerator
Multi-gear adjustable.
Resident wave accelerating pipe can be divided into two parts of bunching section and accelerating sections, and bunching section has several covert velocity resonance chamber groups
At, it is responsible that longitudinal clustering is carried out to electron beam, therefore the field strength size of its intracavitary need to be in specific working range.Accelerating sections is by more
A phase velocity is the resonant cavity composition of the light velocity, is responsible for improving electron energy to particular value.
Working in the axis of π moulds, to power on coupled standing wave accelerator tube be a kind of binary cycle coupled resonator chain type structure, by phase
The shortening coupler resonant cavity coupling interaction of adjacent phase shift pi/2 is formed by connecting.It had both maintained the good stability of accelerating field,
High shunt impedance characteristic is met again.
Coupler only ensures that stablizing for microwave is transmitted, and does not contribute the acceleration of electronics.For entire accelerating tube, lead to
It crosses and mechanical adjustment is carried out to the coupler of specific position in accelerating sections, keep its detuning, so that being deformed into makes accelerating field TM01
The amplitude of wave presses the cut-off waveguide of exponential damping, and the electric field in accelerating cavity thereafter is made substantially to weaken, to realize to electron beam
The control of energy.
After introducing energy switch, the amplitude of accelerating cavity field will become in original setting input power, homogeneous tube
Change, it is constant in view of the coefficient of coup of former accelerating cavity chain, only input microwave power need to suitably be adjusted, so that it may to obtain pack
The design field strength of resonant cavity in section, to ensure electron beam longitudinal direction clustering effect.
The advantages and positive effects of the present invention：
Using the energy switch technology of this patent, it is the tightest that structure can be used in the adjustable medical computerized linear accelerator of energy
Gather, processing technology axis the simplest powers on coupled standing wave accelerator tube, so as to further reduce product size, reduce cost.
Specific embodiment：
Axis powers on coupled standing wave accelerator tube and is formed by big chamber (accelerating cavity) and small chamber (coupler) alternate combinations, part knot
Structure is as shown in Figure 1.After microwave power feed-in accelerating tube, electronics is added by the microwave electric field established in accelerating cavity
Speed；And coupler only couples transmission of the microwave power between accelerating cavity, does not contribute the energy of electronics.Pass through
The structure of coupler of the control in specific position, the changeable microwave power size being transmitted in the accelerating cavity of its rear end, to
Control the energy size of electronics, i.e. energy switching function.Energy can close 01 and can control its extraction by mechanical structure or enter coupling
Close chamber.
Fig. 1 is accelerating tube mechanical construction drawing when energy switch extracts coupler (energy switch does not work), and Fig. 2 is at this time
Coupler structure chart.Fig. 3 is accelerating tube mechanical construction drawing when energy switch enters coupler (energy switch work), Fig. 4
For coupler structure chart at this time.It can be seen that coupler at this time can be considered a circular waveguide structure, and microwave power is at it
In largely lose, lead to the microwave electric field amplitude reduction in all accelerating cavities of its rear end, to change final electronics energy
Amount.Fig. 5 gives when energy switch does not work, field distribution on the axis in simulate a accelerating tube.Its accelerating cavity
It is respectively that 9 whole chambers that 0.58 half chamber, 0.92 whole chamber and phase velocity are 1 form by phase velocity；10 couplers are handed over
For being installed between accelerating cavity.When being inserted into energy switch in the 5th coupler, field distribution is as schemed on the axis simulated
Shown in 6, the electric field amplitude in the accelerating cavity of its rear end 6 reduces, to which the electron energy of accelerating tube output accordingly reduces.For needing
The accelerator of energy multi-gear adjustment is wanted, only energy switch structure need to be installed in different multiple couplers can be realized electronics energy
The multi-gear adjustable of amount.
When energy switch works, the coefficient of coup of homogeneous tube will change.To ensure the bunching section (phase velocity point in illustrating
Wei 0.58 half chamber, 0.92 whole chamber) in field strength it is constant, the corresponding microwave power size for reducing input, specifically
Watt level can finally be determined by calculating with debugging result.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (1)
1. a kind of axis powers on the energy switch of coupled standing wave accelerator tube, it includes being alternately arranged that the axis, which powers on coupled standing wave accelerator tube,
Multiple accelerating cavities and coupler, late piece is equipped between the accelerating cavity and coupler, circular hole is equipped in the middle part of the door screen piece, it is special
Sign is that the energy switch includes the pull rod of plate front-end and back-end, and the middle part of the plate front end is equipped with circular hole, the plate
Shape front end is inserted into the coupler, and the pull rod is stretched out from the side wall of the coupler, when the plate front end is inserted into
When its circular hole and the circular hole overlapping positions of the late on piece, three circular holes form circular waveguide structure；
Circular hole in the middle part of the door screen piece is identical as the circular hole size of plate front center；
The thickness of the plate front end is identical as the thickness of the coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035248.0A CN105555009B (en) | 2016-01-19 | 2016-01-19 | A kind of axis powers on the energy switch of coupled standing wave accelerator tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035248.0A CN105555009B (en) | 2016-01-19 | 2016-01-19 | A kind of axis powers on the energy switch of coupled standing wave accelerator tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105555009A CN105555009A (en) | 2016-05-04 |
| CN105555009B true CN105555009B (en) | 2018-08-03 |
Family
ID=55833870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610035248.0A Active CN105555009B (en) | 2016-01-19 | 2016-01-19 | A kind of axis powers on the energy switch of coupled standing wave accelerator tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105555009B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455289B (en) * | 2016-11-14 | 2018-08-03 | 上海联影医疗科技有限公司 | Resident wave accelerating pipe has the accelerator of the resident wave accelerating pipe |
| US10212800B2 (en) | 2017-03-24 | 2019-02-19 | Radiabeam Technologies, Llc | Compact linear accelerator with accelerating waveguide |
| WO2018222839A1 (en) | 2017-06-01 | 2018-12-06 | Radiabeam Technologies, Llc | Split structure particle accelerators |
| US11612049B2 (en) | 2018-09-21 | 2023-03-21 | Radiabeam Technologies, Llc | Modified split structure particle accelerators |
| CN109195301B (en) * | 2018-10-31 | 2021-11-30 | 上海联影医疗科技股份有限公司 | Accelerating tube and linear accelerator |
| CN109462932B (en) * | 2018-12-28 | 2021-04-06 | 上海联影医疗科技股份有限公司 | Standing wave accelerating tube |
| CN113015312B (en) * | 2021-02-23 | 2022-11-11 | 中科超精(南京)科技有限公司 | Energy switch accelerating tube and application thereof |
| CN113365409B (en) * | 2021-05-19 | 2022-12-09 | 中国原子能科学研究院 | Traveling wave acceleration structure and electron accelerator |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0196913A2 (en) * | 1985-03-29 | 1986-10-08 | Varian Associates, Inc. | Standing wave linear accelerator having non-resonant side cavity |
| CN1237079A (en) * | 1999-06-25 | 1999-12-01 | 清华大学 | Energy switch for axis-coupled standing wave accelerator tube |
| US6316876B1 (en) * | 1998-08-19 | 2001-11-13 | Eiji Tanabe | High gradient, compact, standing wave linear accelerator structure |
| CN1455635A (en) * | 2003-06-06 | 2003-11-12 | 南京大学 | Energy-adjustable electronic linear accelerator |
| CN103096611A (en) * | 2013-02-04 | 2013-05-08 | 上海交通大学 | Microwave deflection cavity used for control of electronic beam current energy and pulse width |
| CN103260332A (en) * | 2013-05-29 | 2013-08-21 | 山东新华医疗器械股份有限公司 | Cross coupling standing wave accelerating tube |
| CN204145873U (en) * | 2014-11-03 | 2015-02-04 | 上海联影医疗科技有限公司 | Accelerating tube and radiotherapy system |
| CN104837293A (en) * | 2015-04-10 | 2015-08-12 | 中广核中科海维科技发展有限公司 | Accelerating tube energy adjusting device capable of outputting keV-level and MeV-level ray in transformation manner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7339320B1 (en) * | 2003-12-24 | 2008-03-04 | Varian Medical Systems Technologies, Inc. | Standing wave particle beam accelerator |
| CN100358397C (en) * | 2004-02-01 | 2007-12-26 | 绵阳高新区双峰科技开发有限公司 | Phase (energy) switch-standing wave electronic linear accelerator |
-
2016
- 2016-01-19 CN CN201610035248.0A patent/CN105555009B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0196913A2 (en) * | 1985-03-29 | 1986-10-08 | Varian Associates, Inc. | Standing wave linear accelerator having non-resonant side cavity |
| US6316876B1 (en) * | 1998-08-19 | 2001-11-13 | Eiji Tanabe | High gradient, compact, standing wave linear accelerator structure |
| CN1237079A (en) * | 1999-06-25 | 1999-12-01 | 清华大学 | Energy switch for axis-coupled standing wave accelerator tube |
| CN1455635A (en) * | 2003-06-06 | 2003-11-12 | 南京大学 | Energy-adjustable electronic linear accelerator |
| CN103096611A (en) * | 2013-02-04 | 2013-05-08 | 上海交通大学 | Microwave deflection cavity used for control of electronic beam current energy and pulse width |
| CN103260332A (en) * | 2013-05-29 | 2013-08-21 | 山东新华医疗器械股份有限公司 | Cross coupling standing wave accelerating tube |
| CN204145873U (en) * | 2014-11-03 | 2015-02-04 | 上海联影医疗科技有限公司 | Accelerating tube and radiotherapy system |
| CN104837293A (en) * | 2015-04-10 | 2015-08-12 | 中广核中科海维科技发展有限公司 | Accelerating tube energy adjusting device capable of outputting keV-level and MeV-level ray in transformation manner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105555009A (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105555009B (en) | A kind of axis powers on the energy switch of coupled standing wave accelerator tube | |
| CN106971929B (en) | The controllable Relativistic backward-wave oscillator of across the wave band multifrequency of one kind | |
| CN103346056A (en) | Two-stage serial-connection terahertz slow wave structure | |
| CN103021770A (en) | Internal-feedback-type terahertz traveling wave tube oscillator | |
| CN105355528A (en) | Dual-electron-beam terahertz wave radiation source in overmode cascading high frequency structure | |
| CN107333382A (en) | A kind of side coupled standing wave accelerator tube and standing wave accelerator | |
| CN1102829C (en) | Energy switch for axis-coupled standing wave accelerator tube | |
| CN101707850A (en) | Radio frequency superconducting cavity with slit waveguide structure for superconducting accelerator | |
| CN108899262A (en) | A kind of klystron TESLA theory input cavity coupling terms processing method | |
| CN103050356B (en) | High-power millimeter wave and terahertz wave signal frequency doubling device | |
| CN105552483A (en) | TE<0>0n/TE<0>1n mode exciter | |
| CN109148244B (en) | Axially tunable relativistic magnetron | |
| CN204145873U (en) | Accelerating tube and radiotherapy system | |
| CN109994350B (en) | Energy coupling device from H-surface insertion type rectangular waveguide to staggered double gates | |
| CN116634651B (en) | Mobile electron irradiation accelerator and method thereof | |
| CN208767251U (en) | A kind of axially adjustable humorous relativistic magnetron | |
| CN210225808U (en) | Small microwave oven adopting 900MHz solid source power amplifier as microwave source | |
| Hou et al. | Accelerating structure design and fabrication for KIPT and PAL XFEL | |
| CN108091533B (en) | Double-frequency oscillator | |
| CN110620027A (en) | Miniaturized high-coupling-impedance complementary split resonant ring slow-wave structure | |
| CN104134597A (en) | Klystron power synthesizing and outputting device | |
| CN103632908B (en) | Terahertz gyrotron | |
| CN206237663U (en) | A kind of energy with adjustable power divider can adjust electron linear accelerator | |
| CN114783849A (en) | Double-confocal waveguide cyclotron traveling wave tube input coupler based on coaxial resonant cavity structure | |
| CN102163528B (en) | Multi-beam coupled cavity traveling-wave tube slow-wave structure and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |