CN109224319A - Full superconduction Proton therapy system - Google Patents
Full superconduction Proton therapy system Download PDFInfo
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- CN109224319A CN109224319A CN201810892018.5A CN201810892018A CN109224319A CN 109224319 A CN109224319 A CN 109224319A CN 201810892018 A CN201810892018 A CN 201810892018A CN 109224319 A CN109224319 A CN 109224319A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1077—Beam delivery systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1077—Beam delivery systems
- A61N5/1081—Rotating beam systems with a specific mechanical construction, e.g. gantries
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N2005/1085—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy characterised by the type of particles applied to the patient
- A61N2005/1087—Ions; Protons
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Abstract
The invention discloses a kind of full superconduction Proton therapy systems, comprising: superconducting cyclotron, the superconducting cyclotron is for generating proton beam；Superconduction rotation therapy cabin is equipped with by the superconducting cyclotron；Superconduction rotation therapy cabin includes the beam line in rotation therapy cabin.By using above-mentioned technical proposal, the Proton therapy system, the mode in superconduction rotation therapy cabin is equipped with using superconducting cyclotron, the system layout is compact, it occupies little space, weight of equipment is greatly reduced, also just further reduces manufacturing expense in this way, that is, the present invention provides a kind of scheme of full superconduction Proton therapy system for reducing proton therapy equipment size, weight and manufacturing expense.
Description
Technical field
The present invention relates to proton therapeutic technical field is directed to, biological (medical treatment) technical field is also belonged to, more particularly, to one
The full superconduction Proton therapy system of kind.
Background technique
The cancer morbidity in China is higher and higher at present, has become and endangers one of maximum killer of the health of our people,
Common therapeutic modality has operation, gamma knife, proton/heavy particle therapy etc..
And proton/heavy particle therapy mainly utilizes accelerator to generate proton/heavy ion beam of certain energy, passes through each electromagnetism
Beam transfer to target area is bombarded tumour cell, achievees the effect that treatment by element.Due to proton have in substance it is sharp
The peak Bragg, i.e. its energy will lose to greatest extent in canceration position, thus can while killing cancerous tumor cell maximum journey
The protection normal tissue of degree, this makes proton therapeutic become one of current treating malignant tumor means state-of-the-art in the world,
It is one of the treatment means of current prevalence in the world.
Proton therapy system is usually selected by accelerator, energy and the masters such as Beam Transport Systems, rotation or fixation for treatment cabin
Subsystem is wanted to constitute.About 200 tons of room temperature bevatron weight, about 4.5 meters of diameter or so, synchrotron volume will be more
It is larger.Superconducting cyclotron weight only has 50 tons -90 tons, 2 meters~3.2 meters of diameter.Room temperature rotation therapy machine frame system is extremely
It wants less 100 tons or more (100 tons~200 tons), superconduction rotation therapy cabin system is 20 tons or so.Proton common at present in the world
Treatment system is that (the room temperature C235 cyclotron of such as IBA matches room temperature in room temperature accelerator outfit room temperature rotation therapy cabin
Proteusplus rotation therapy cabin), superconducting accelerator be equipped with room temperature rotation therapy cabin (such as IBA S2C2 superconductive synchronous convolution plus
Fast device matches Proteus one rotation therapy cabin, and PSI/Varian superconducting cyclotron matches room temperature rotation therapy cabin), room temperature adds
Fast device is equipped with superconduction rotation therapy cabin, and (the room temperature heavy ion synchrotron of such as HIMAC-NIRS matches superconduction rotation therapy cabin, often
Pronova SC360 superconduction rotation therapy cabin is matched in the convolution of warm proton) these types of mode, there has been no full superconduction Proton therapy system,
This, which results in current Proton therapy system still, has the problem that size is big, preponderance and manufacturing expense are too high.
By taking the 250MeV superconducting cyclotron of PSI adds room temperature rotation therapy cabin scheme as an example, since its accelerator uses
Superconducting coil compares room temperature cyclotron main magnet, the air gap of magnetic pole is larger, on the one hand there is enough skies to main magnet excitation
Between installation flow strong modulating device, the strong fast modulation of stream of proton beam may be implemented, and then realize proton intensity modulated therapy, can be right
Case treatment dosage carries out more accurate control, and another aspect proton beam ejection efficiency is higher, and beam loss is small；And it is super
The use of loop, so that main magnet electrical power (including refrigeration machine power) only has~50kW, it is the 1/4 of room temperature convolution main magnet
Left and right, energy conservation and environmental protection.Accelerator and the matching in rotation therapy cabin are also extremely important to final performance, advanced in proton therapeutic
Tumour layering short scan treatment technology needs proton energy quickly to change, and then needs on rotation therapy cabin for constraining proton rail
The magnetic field of the magnet of mark carries out corresponding quickly variation.In order to realize layering quickly scanning, the line in rotation therapy cabin passes PSI
Defeated line uses room temperature magnet, to realize that magnetic field quickly changes, it is thereby achieved that every 5mm treatment depth only need~100ms cuts
The fast proton energy variation for changing the time is that the most fast Proton therapy system for the treatment of speed, cost are to weigh in the world at present
Nearly 200 tons of rotation therapy cabin, entire Proton therapy system is larger, and use room temperature magnet treatment tank, power consumption without
Method reduces.
Currently, the primary technological difficulties in superconduction rotation therapy cabin are how to adapt to tumour layering short scan treatment technology institute
The quick variation issue of the proton energy needed.Since current superconducting magnet can not accomplish that quick magnetic field as room temperature magnet becomes
Change, cause or the scanning speed in superconduction rotation therapy cabin relatively slow (NIRS-HIMAC) or uses achromatism deflecting element group
(achromatic bending section) design to increase the momentum receiving degree (momentum in superconduction rotation therapy cabin
Acceptance) make proton within the scope of 0~30cm of human body range, when changing scan depths, it is only necessary to which certain surpass is set
Magnetic conduction iron exciting current operating point, each operating point can cover excitation of the neighbouring proton range without adjusting superconducting magnet
Electric current；Only range be more than each operating point coverage area after, adjust the exciting current of superconducting magnet to next operating point i.e.
It can.This latter approach imagine very well, but the momentum receiving degree under one side fixed magnetic field how to optimize again it is also limited, it is another
Aspect is also still limited by superconducting magnet excitation rate in operating point handoff procedure needs the time, therefore, practical at present
The scanning speed in superconduction rotation therapy cabin still can not be more than the design of the room temperature rotation therapy cabin PSI.It must will also be in superconducting magnet
The structure for preventing vortex or material is arranged, quenches protection etc. optimizes, to improve the scanning speed of superconduction treatment tank.
Summary of the invention
In view of the above technical problems, it is an object of the invention to provide one on the basis of not influencing proton therapeutic effect
Kind is for improving the scanning speed of superconduction treatment tank, reducing the full superconduction of proton therapy equipment size, weight and manufacturing expense
The scheme of Proton therapy system.
To achieve the above object, the present invention provides the following technical scheme that a kind of full superconduction Proton therapy system, comprising:
Superconducting cyclotron, the superconducting cyclotron is for generating proton beam；
Superconduction rotation therapy cabin is equipped with by the superconducting cyclotron；
Superconduction rotation therapy cabin includes the beam line in rotation therapy cabin.
By using above-mentioned technical proposal, which uses superconducting cyclotron and is equipped with superconduction rotation
The mode for the treatment of tank, the system layout is compact, occupies little space, and greatly reduces weight of equipment, also just further in this way
Reduce manufacturing expense.Superconducting cyclotron compares room temperature than room temperature cyclotron and the rotation beam line magnet of superconduction
Rotation beam line magnet will energy-saving and environmental protection, significantly reduce operating cost.
The present invention is further arranged to: on the line outbound course that the superconducting cyclotron generates and being in described
Beam guide and energy selection system are sequentially set between superconducting cyclotron and superconduction rotation therapy cabin.
By using above-mentioned technical proposal, beam guide is used for transmission line, and the line is allowed to enter energy selection
System carries out energy selection and eliminates color difference, improves the quality for being transferred to the line in rotation therapy cabin.
The present invention is further arranged to: the beam guide includes the first quadrupole lense group and drop energy of sequence setting
Device.
By using above-mentioned technical proposal, what the first quadrupole lense group was used to the superconducting cyclotron draw
Beam focusing, the line after the focusing subsequently enter the degrader and carry out energy adjustment.
The present invention is further arranged to: the energy selection system includes the first deflection magnet of sequence setting, the two or four
Pole lens and the second deflection magnet.
By using above-mentioned technical proposal, first deflection magnet is used to deflect what the superconducting cyclotron was drawn
Line, second quadrupole lense to by the line after first deflection magnet for being focused, second deflection
Magnet for being deflected to by the line after second quadrupole lense, it is thus achieved that halved tie stream carry out energy selection with
Eliminate color difference.
The present invention is further arranged to: the beam guide further includes the third quadrupole lense of sequence setting, third
Deflection magnet, the 4th quadrupole lense, quadrupole deflector magnet and the 5th quadrupole lense.
By using above-mentioned technical proposal, the third quadrupole lense is used for by the beam after second deflection magnet
Flowing into line focusing, the third deflection magnet to by the line after the third quadrupole lense for deflecting, and described the
For being focused to by the line after the third deflection magnet, the quadrupole deflector magnet is used for logical four quadrupole lenses
Line after crossing the 4th quadrupole lense is deflected, and the 5th quadrupole lense is used for by the quadrupole deflector magnet
Line afterwards is focused, it is thus achieved that the transmission to line and controlling quality of the line in transmission process.
The present invention is further arranged to: diagnosis member being arranged between second deflection magnet and the third quadrupole lense
Part one.
By using above-mentioned technical proposal, diagnosis is set between second deflection magnet and the third quadrupole lense
Element one.The line by second deflection magnet can be detected by diagnostic element one in this way.
The present invention is further arranged to: superconduction rotation therapy cabin includes the 5th deflection magnet of sequence setting, the 6th
Quadrupole lense and the 6th deflection magnet, the 5th deflection magnet, the 6th quadrupole lense and the 6th deflection magnet of the sequence setting
Just constitute the beam line in rotation therapy cabin.
By using above-mentioned technical proposal, the 5th deflection magnet is used for by the beam after the 5th quadrupole lense
Flowing into horizontal deflection, the 6th quadrupole lense to by the line after the 5th deflection magnet for being focused, and described the
Six deflection magnets to by the line after the 6th quadrupole lense for deflecting.
The present invention is further arranged to: diagnosis member being arranged between the 6th quadrupole lense and the 6th deflection magnet
Part two.
By using above-mentioned technical proposal, diagnosis is set between the 6th quadrupole lense and the 6th deflection magnet
Element two.The line by the 6th quadrupole lense can be detected by diagnostic element two in this way.
The present invention is further arranged to: the 5th deflection magnet, the 6th quadrupole lense and the 6th deflection magnet 16 are
Superconducting magnet.
By using above-mentioned technical proposal, the 5th deflection magnet, the 6th quadrupole lense and the 6th deflection magnet are
Superconducting magnet.And superconducting magnet field strength is high and compact-sized light-weight.Further improve the efficiency and stabilization of its educt beaming flow
Property.
In conclusion the invention has the following advantages:
Substantially reduce the occupied space and weight of proton therapy equipment so that proton therapy equipment for hall space and
The requirement of load-bearing significantly reduces, and significantly reduces the expenditure of construction and equipment operation power consumption of proton therapeutic appts, solves
The problem that existing Proton therapy system equipment is huge, hall space and load-bearing requirements are high, so that Proton therapy system of the invention
Scheme can carry out one-to-one replacement to the huge Traditional x-ray therapeutic equipment of existing installation amount.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of full superconduction Proton therapy system of the invention.
Appended drawing reference: 1, superconducting cyclotron；2, the first quadrupole lense group；3, degrader；4, the first deflection magnet；5,
Second quadrupole lense；6, the second deflection magnet；7, diagnostic element one；8, third quadrupole lense；9, third deflection magnet；10,
Four quadrupole lenses；11, quadrupole deflector magnet；12, the 5th quadrupole lense；13, the 5th deflection magnet；14, the 6th quadrupole lense；
15, diagnostic element two；16, the 6th deflection magnet；17, treatment head.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
As shown in Figure 1, full superconduction Proton therapy system, comprising: superconducting cyclotron 1, superconducting cyclotron 1 are used for
Generate line；When superconducting cyclotron 1 is superconduction bevatron, superconducting cyclotron 1 is just for generating matter
Beamlet stream；Superconduction rotation therapy cabin is equipped with by superconducting cyclotron 1；Superconduction rotation therapy cabin includes the beam in rotation therapy cabin
Streamline and its superconducting magnet.Different from common proton treatment plans room temperature accelerator be equipped with superconduction rotation therapy cabin, often
Warm accelerator is equipped with room temperature rotation therapy cabin, and superconducting cyclotron is equipped with room temperature rotation therapy cabin isotype, proposes here
Proton therapy system is equipped with the mode in superconduction rotation therapy cabin using superconducting cyclotron, and the system layout is compact, occupies
Space is small, greatly reduces weight of equipment.Superconducting cyclotron is than room temperature cyclotron and the rotation line of superconduction
Line magnet than room temperature rotation beam line magnet will energy-saving and environmental protection, significantly reduce operating cost.
On the line outbound course that superconducting cyclotron 1 generates and it is in superconducting cyclotron 1 and superconduction rotation
Beam guide and energy selection system are sequentially set between treatment tank.Beam guide is used for transmission line, and allows
The line, which enters energy selection system, to carry out energy selection and eliminates color difference.It is the convolution of superconduction proton in superconducting cyclotron 1
When accelerator, beam guide is used for transmission proton beam, and allows the proton beam to enter energy selection system and carry out energy
Selection and elimination color difference.
Beam guide includes the first quadrupole lense group 2 and degrader 3 of sequence setting；First quadrupole lense group 2 is used
Line after the beam focusing that superconducting cyclotron 1 is drawn, the focusing subsequently enters degrader 3 and carries out energy adjustment；
First quadrupole lense group 2 is arranged on the direction of 1 educt beaming flow of superconducting cyclotron；The setting of degrader 3 is passing through the one or four
On the direction of line after pole lens group 2.
Energy selection system includes the first deflection magnet 4, the second quadrupole lense 5 and the second deflection magnet 6 of sequence setting；
First deflection magnet 4 is used to deflect the line of the extraction of superconducting cyclotron 1, and the second quadrupole lense 5 is used for inclined by first
Line after turning magnet 4 is focused, and the second deflection magnet 6 is used to deflect to by the line after the second quadrupole lense 5,
First deflection magnet 4 is arranged on the direction by the line after degrader 3, and the setting of the second quadrupole lense 5 is inclined by first
On the direction of line after turning magnet 4, the second deflection magnet 6 is arranged on the direction by the line of the second quadrupole lense 5.
Beam guide further includes the third quadrupole lense 8 of sequence setting, third deflection magnet 9, the 4th quadrupole lense
10, quadrupole deflector magnet 11 and the 5th quadrupole lense 12；Third quadrupole lense 8 is used for by the beam after the second deflection magnet 6
Line focusing is flowed into, third deflection magnet 9 to by the line after third quadrupole lense 8 for deflecting, the 4th quadrupole lense
10 to by the line after third deflection magnet 9 for being focused, and quadrupole deflector magnet 11 is used for saturating by the 4th quadrupole
Line after mirror 10 is deflected, and the 5th quadrupole lense 12 is used to be focused to by the line after quadrupole deflector magnet 11,
Third quadrupole lense 8 is arranged on the direction by the line after the second deflection magnet 6, and the setting of third deflection magnet 9 is passing through
On the direction of line after third quadrupole lense 8, the 4th quadrupole lense 10 is arranged in through the line after third deflection magnet 9
On direction, quadrupole deflector magnet 11 is arranged on the direction by the line after the 4th quadrupole lense 10, the 5th quadrupole lense 12
It is arranged on the direction by the line after quadrupole deflector magnet 11.
Diagnostic element 1 is set between second deflection magnet 6 and third quadrupole lense 8.Diagnosis member can be passed through in this way
Part one detects the line by the second deflection magnet 6.Diagnostic element one is beam detection device.
Superconduction rotation therapy cabin is arranged in therapeutic room and the 5th deflection magnet 13 including sequence setting, the 6th quadrupole are saturating
Mirror 14 and the 6th deflection magnet 16, the 5th deflection magnet 13, the 6th quadrupole lense 14 and the 6th deflection magnet 16 of sequence setting
Just constitute the beam line in rotation therapy cabin；5th deflection magnet 13 is used to carry out to by the line after the 5th quadrupole lense 12
Deflection, the 6th quadrupole lense 14 for being focused to by the line after the 5th deflection magnet 13, use by the 6th deflection magnet 16
It is deflected in by the line after the 6th quadrupole lense 14, the setting of the 5th deflection magnet 13 is passing through the 5th quadrupole lense 12
On the direction of line afterwards, the 6th quadrupole lense 14 is arranged on the direction by the line after the 5th deflection magnet 13, and the 6th
Deflection magnet 16 is arranged on the direction by the line after the 6th quadrupole lense 14, and the setting for the treatment of head 17 is passing through the 6th deflection
On the direction of line after magnet 16.
Diagnostic element 2 15 is set between 6th quadrupole lense 14 and the 6th deflection magnet 16.Diagnosis can be passed through in this way
Element two detects the line by the 6th quadrupole lense 14.Diagnostic element two is beam detection device.
5th deflection magnet 13, the 6th quadrupole lense 14 and the 6th deflection magnet 16 are superconducting magnet.And superconducting magnet
Field strength is high and compact-sized light-weight.
The line drawn from superconduction proton precessional magnetometer 1, line then transmit in beam guide, first pass through the one or four
Pole lens group 2 focuses, and carries out energy adjustment using degrader 3, then uses the first deflection magnet 4,6 and of the second deflection magnet
Second quadrupole lense 5 carries out energy selection and eliminates color difference, and passes through third quadrupole lense 8, the 4th quadrupole lense 10, the May 4th
Pole lens 12, third deflection magnet 9, quadrupole deflector magnet 11 and be transferred to rotation therapy room, in conjunction with the 5th deflection magnet 13,
Line is finally sent to treatment head by the rotation therapy cabin beam line that the 6th deflection magnet 16 and the 6th quadrupole lense 14 are constituted.In this way
Full superconductive system, reduce the overall dimensions and weight of equipment, improve the efficiency and stability of accelerator educt beaming flow.
Compared with room temperature cyclotron, superconducting cyclotron weight is about the 1/2 of room temperature cyclotron, and diameter is about
It is the 2/3 of the diameter of room temperature cyclotron or even 1/2, volume and weight has and significantly reduces, in addition, superconducting cyclotron
Accelerator uses superconducting coil, and the air gap between magnetic pole is big, convenient for the equipment such as frequency cavity, beam diagnostics, extraction system installation and
Maintenance, high reliablity, ejection efficiency are higher than room temperature cyclotron.
Compared with room temperature rotation therapy cabin, superconduction rotation therapy cabin weight can accomplish the 1/ of the weight in room temperature rotation therapy cabin
10, it is extremely advantageous performance for hospital that diameter and length, which also decrease than room temperature rotation therapy cabin,.And with it is current
Difference is designed in the superconduction rotation therapy cabin of already existing room temperature quadrupole electromagnet+superconduction deflection magnet, is controlled using full superconduction rotation
Cabin design is treated, i.e. the quadrupole electromagnet of focusing and the dipolar magnet of deflection is all made of superconducting magnet design.
In addition, tumour demixing scan needs faster change of energy, and then the magnetic field of magnet on rotation therapy cabin is needed to carry out
Corresponding quickly variation, when superconducting magnet magnetic field quickly changes, can have induced voltage to magnet cryogenic system end, pass through the voltage
Load is in low-temperature end metal structure, such as cold screen, liquid helium slot etc., and then generates vortex, this portion of energy will lead to cryogenic system
It generates structure destruction (cold screen distortion, and then generate the conduction heat across cold screen temperature and liquid helium temperature) and low-temperature end is resistive
Heat load (vortex heat), causes low temperature to fail, in turn results in coil and quench.To solve this problem, it can be vortexed using blocking
Structure reduce vortex to block vortex, or using the higher material of resistivity.Superconducting magnet magnetic field, which quickly changes, causes superconduction
Coil both end voltage L*di/dt, wherein L is the inductance value of superconducting coil, and i is the electric current by superconducting coil, and t is by super
At the time of the electric current i of loop, in this case, usual MRI superconducting magnet field is commonly by multiple back-to-back parallel connections
After the series connection of cold diode group, superconducting magnet changes of magnetic field speed can seriously be limited by being connected to coil both ends and carrying out quenching protected mode
And then influence tumour demixing scan speed.To solve this problem, it can additionally not added using such as high-copper hypergeometric superconducting coil
The mode of cold diode carries out quenching protection.Superconducting magnet on runing rest is reasonably selected in this way and quenches protection circuit, is made it
It is not excessively high and make the maximum temperature of coil excessively high while accommodating the coil both end voltage that fast-changing magnetic field generates.It mentions
The high scanning speed of superconduction treatment tank.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (9)
1. a kind of full superconduction Proton therapy system, it is characterised in that: include:
Superconducting cyclotron (1), the superconducting cyclotron (1) is for generating proton beam；
Superconduction rotation therapy cabin is equipped with by the superconducting cyclotron (1)；
Superconduction rotation therapy cabin includes the beam line in rotation therapy cabin.
2. full superconduction Proton therapy system according to claim 1, it is characterised in that: in the superconducting cyclotron
(1) it on the line outbound course generated and is between the superconducting cyclotron (1) and superconduction rotation therapy cabin and sequentially sets
Set beam guide and energy selection system.
3. full superconduction Proton therapy system according to claim 1, it is characterised in that: the beam guide includes suitable
The the first quadrupole lense group (2) and degrader (3) of sequence setting.
4. full superconduction Proton therapy system according to claim 1, it is characterised in that: the energy selection system includes suitable
The first deflection magnet (4), the second quadrupole lense (5) and the second deflection magnet (6) of sequence setting.
5. full superconduction Proton therapy system according to claim 1, it is characterised in that: the beam guide further includes
Sequence setting third quadrupole lense (8), third deflection magnet (9), the 4th quadrupole lense (10), quadrupole deflector magnet (11) and
5th quadrupole lense (12).
6. full superconduction Proton therapy system according to claim 4, it is characterised in that: second deflection magnet (6) with
Diagnostic element one is arranged between (8) in third quadrupole lense.
7. full superconduction Proton therapy system according to claim 4, it is characterised in that: superconduction rotation therapy cabin includes
The 5th deflection magnet (13), the 6th quadrupole lense (14) and the 6th deflection magnet (16) of sequence setting, the sequence setting
5th deflection magnet (13), the 6th quadrupole lense (14) and the 6th deflection magnet (16) just constitute the line in rotation therapy cabin
Line.
8. full superconduction Proton therapy system according to claim 7, it is characterised in that: the 6th quadrupole lense (14) with
Diagnostic element two (15) is set between 6th deflection magnet (16).
9. full superconduction Proton therapy system according to claim 7, it is characterised in that: the 5th deflection magnet (13),
6th quadrupole lense (14) and the 6th deflection magnet (16) are superconducting magnet.
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| CN110493948A (en) * | 2019-09-12 | 2019-11-22 | 中国科学院近代物理研究所 | A kind of layering heavy ion/proton therapeutic appts and dedicated transmissions route |
| CN112804810A (en) * | 2020-12-30 | 2021-05-14 | 兰州科近泰基新技术有限责任公司 | Compact beam-stream image reproduction transmission system |
| CN115413105A (en) * | 2022-09-19 | 2022-11-29 | 中国科学院近代物理研究所 | 360 that can realize multi-terminal delivery o Superconducting rotating beam line |
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