CN105392270A - Medical proton synchrotron - Google Patents
Medical proton synchrotron Download PDFInfo
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- CN105392270A CN105392270A CN201510672823.3A CN201510672823A CN105392270A CN 105392270 A CN105392270 A CN 105392270A CN 201510672823 A CN201510672823 A CN 201510672823A CN 105392270 A CN105392270 A CN 105392270A
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- 238000002347 injection Methods 0.000 claims description 29
- 239000007924 injection Substances 0.000 claims description 29
- 238000000605 extraction Methods 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 3
- 238000004904 shortening Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
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- 230000005855 radiation Effects 0.000 description 3
- 230000000241 respiratory effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000001959 radiotherapy Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 230000002463 transducing effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000001064 degrader Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010336 energy treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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- 238000002661 proton therapy Methods 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
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Classifications
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- 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
- H05H13/00—Magnetic resonance accelerators; Cyclotrons
- H05H13/04—Synchrotrons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
Abstract
The invention relates to a medical proton synchrotron which comprises the components of a first deflecting two-pole magnet, a second deflecting two-pole magnet, a third deflecting two-pole magnet, a fourth deflecting two-pole magnet, a fifth deflecting two-pole magnet, a sixth deflecting two-pole magnet, a seventh deflecting two-pole magnet and an eighth deflecting two-pole magnet, wherein the deflecting two-pole magnets are successively connected, and furthermore the first deflecting two-pole magnet is connected with the eighth deflecting two-pole magnet for forming an annular structure; a first long linear junction, a second long linear junction, a third long linear junction, a fourth long linear junction; a first miniature linear junction, a second miniature linear junction, a third miniature linear junction and a fourth miniature linear junction. According to the medical proton synchrotron, through utilizing the deflecting two-pole magnets with ultrahigh field strength and horizontal focusing and horizontal defocusing four-pole magnets, an envelope function is kept in a relatively low level, and furthermore the medical proton synchrotron has advantages of effectively improving acceptance degree of the proton synchrotron, increasing number of stored protons, increasing proton utilization rate and duty ratio, and shortening treatment time. Furthermore each magnet element in the medical proton synchrotron has relatively high strength for reducing perimeter of the whole synchrotron, thereby effectively utilizing the space of the medical proton synchrotron and furthermore reducing treatment cost.
Description
Technical field
The present invention relates to a kind of medical proton-synchrotron for oncotherapy.
Background technology
The excellent in the depth direction Bragg peak character of proton makes it become one of means the most advanced in oncotherapy, and the construction of proton therapeutic appts and therapeutic community gets more and more in the world at present.The state-of-the-art scanning technique adopted in treatment is, the proton beam utilizing scanning magnet to will speed up device extraction in the horizontal scans covering accurately in strict accordance with pre-determined pattern formation, accuracy can reach submillimeter magnitude, carries out energy adjustment in the vertical before treatment head (treatment head is equipped with scanning magnet etc.).Above-mentioned scanning technique can realize the strong accurate treatment of three-dimensional suitable-shape regulating, realizes the radiotherapy requirement that sensitive organization's exposure dose is little as far as possible of target area internal dose to greatest extent as far as possible greatly and around.Compared with scattering technology, above-mentioned scanning technique is adopted to carry out treating and do not need (cannot accomplish accurately to control beam configuration due to scattering technology and rear end is conformal for each patient customizes compensator, so need compensator), significantly reduce the burden of doctor and hospital, and the structure for the treatment of head is also relatively simple, in addition, scanning treatment head does not comprise scattering object, thus line utilance can be improved, also avoid the secondary ray that scattering object brings simultaneously.So many excellent specific property, makes scanning technique become the standard configuration technology at the new proton heavy particle therapy center built.
The beam pulse width that scanning technique needs accelerator to draw is longer even continuous; Stream strong stability, to realize online dose measurement; The ability of the less and fine adjustment energy of emittance.For the tumour of the movement with organ movement, it is uneven that existing scanning technique easily produces dosage, needs to coordinate the technology such as respiration gate control or quick multiple scanning.The former utilizes breath detector, and the plateau only within the respiratory cycle allows line to draw, and the latter is by having the multiple scanning of the multiple low dose of significant difference these rolling averages to be fallen with respiratory cycle frequency.Quick multiple scanning and line sweep are all process respiratory apparatus the most effectively and the most fast methods for the treatment of at present.These all propose high requirement to the educt beaming flow quality of accelerator and the control of accelerator.
Current operation and proton therapy accelerator mainly cyclotron and the synchrotron in building.Cyclotron can provide stable continuous bundle, and the cut-out of its line and opening speed are very fast, can meet the requirement of respiration gate control.But what cyclotron changed energy dependence is be placed in the mechanical device on high energy line---degrader, utilizes scattering to be reduced by beam energy; Its advantage is that energy adjustment is rapid, can realize the change energy velocity of 50 milliseconds a grade, can support that quick multiple scanning pattern is to treat mobile tumour; But shortcoming is scattering causes line utilance very low, about 2% is only by efficiency during treatment during minimum energy 70MeV, fall the scattering that can cause and afterwards energy select a large amount of beam loss caused can cause great radiation, very large pressure is caused to radiation protection and device security.
Compared with cyclotron, the obvious advantage of synchrotron is that it can regulate easily to the energy of line, to adapt to the needs that radiotherapy accurately changes ion energy, do not need extra energy to fall energy sheet, the environment of relative clean (radiation is little) can be guaranteed.But, (Fig. 1 shows a standard cycle cycle of synchrotron as seen from Figure 1, wherein, energy is drawn in corresponding one of each extraction circulation), the injection of synchrotron, rise and can (being referred to as rising edge) and standardization circulation (being referred to as trailing edge) need to take for a long time, the effective treatment time of extraction corresponding to platform is shorter.Generally inject according to the design difference of accelerator and rise can the time generally from 0.5s to 2s not etc., thus cause the futile treatment time long, transducing time problem slowly, thus quick multiple scanning mode cannot be adapted to.
A kind of technology can carrying out different-energy treatment in same period is provided at present in existing No. 201410383972.3 patent applications and non-patent literature NIMAVol.624 (2010) p33-38, its cycle period can be as shown in Figure 2, wherein, multiple energy can be had in every cycle period to draw, thus the transducing time can be reduced, greatly reduce synchrotron treatment time.But, current existing proton-synchrotron (such as patent documentation 201210115044.X, 201010252492.5 etc.) when concrete magnet, power supply etc. design, do not consider above-mentioned this new technology, thus it is less to make it store population, and then making the energy number of plies that can draw in each cycle, less (tumour of such as, treating 1L generally needs 3X10
11particle, and the general storage population of existing proton-synchrotron is only at 4 ~ 8X10
10left and right), even if when thus adopting above-mentioned this technology, the treatment time of its actual minimizing is also few.
Summary of the invention
In order to solve above-mentioned prior art Problems existing, the present invention aims to provide a kind of medical proton-synchrotron of compact, to realize large particle storage characteristics, and can support that in the monocycle, multilayer energy is drawn, thus effectively overcome existing synchrotron compared to the shortcoming existing for cyclotron.
The medical proton-synchrotron of one of the present invention, it comprises:
Connect successively first to the 8th deflection dipolar magnet, wherein said first deflection dipolar magnet and the 8th deflects dipolar magnet and is connected to form a loop configuration;
Be connected to that described first deflection dipolar magnet and the 8th to deflect between dipolar magnet, first deflects that dipolar magnet and second deflects between dipolar magnet, quadrupole deflector dipolar magnet and the 5th to deflect between dipolar magnet and the 5th deflect dipolar magnet and the 6th and deflect first to fourth long straight sections between dipolar magnet; And
Be connected to described second deflection dipolar magnet and the 3rd to deflect between dipolar magnet, the 3rd to deflect between dipolar magnet and quadrupole deflector dipolar magnet, the 6th deflect dipolar magnet and the 7th and to deflect between dipolar magnet and the 7th deflect dipolar magnet and the 8th and deflect first to fourth mini straight sections between dipolar magnet;
Wherein, described first long straight sections comprises the first horizontal defocus quadrupole magnet arranged near described first deflection dipolar magnet and the first horizontal focusing quadrupole magnet arranged near described 8th deflection dipolar magnet;
Described second long straight sections comprises the second horizontal focusing quadrupole magnet arranged near described first deflection dipolar magnet and the second horizontal defocus quadrupole magnet arranged near described second deflection dipolar magnet;
Described first mini straight sections comprises the 3rd horizontal focusing quadrupole magnet; Described second mini straight sections comprises the 3rd horizontal defocus quadrupole magnet;
Described 3rd long straight sections comprises the 4th horizontal focusing quadrupole magnet arranged near described quadrupole deflector dipolar magnet and the 4th horizontal defocus quadrupole magnet arranged near described 5th deflection dipolar magnet;
Described 4th long straight sections comprises the 5th horizontal focusing quadrupole magnet arranged near described 5th deflection dipolar magnet and the 5th horizontal defocus quadrupole magnet arranged near described 6th deflection dipolar magnet;
Described 3rd mini straight sections comprises the 6th horizontal focusing quadrupole magnet; Described 4th mini straight sections comprises the 6th horizontal defocus quadrupole magnet.
In above-mentioned medical proton-synchrotron,
Described first long straight sections also comprises: be connected to the magnetostatic septum magnet of injection that described first horizontal defocus quadrupole magnet and the injection electrostatic septum between the first horizontal focusing quadrupole magnet be connected with this injection electrostatic septum and be connected to first between described injection electrostatic septum and the first horizontal focusing quadrupole magnet and to resonate six pole magnet;
Described second long straight sections also comprises: the high frequency accelerator being connected to the first injection bump magnet between described second horizontal defocus quadrupole magnet and the second horizontal focusing quadrupole magnet and being connected between this first injection bump magnet and the second horizontal focusing quadrupole magnet;
Described 3rd long straight sections also comprises: be connected to second between described 4th horizontal focusing quadrupole magnet and the 4th horizontal defocus quadrupole magnet and resonate six pole magnet and be connected to this second extraction electrostatic septum resonated between six pole magnet and the 4th horizontal defocus quadrupole magnet;
Described 4th long straight sections also comprises: be connected with described 5th horizontal focusing quadrupole magnet successively first draws magnetostatic septum magnet and second draws magnetostatic septum magnet;
Described first mini straight sections also comprises: be connected to the horizontal high frequency pumping electrode between described 3rd deflection dipolar magnet and the 3rd horizontal focusing quadrupole magnet;
Described 4th mini straight sections also comprises: be connected to described 6th horizontal defocus quadrupole magnet and the 7th and deflect the second injection bump magnet between dipolar magnet.
In above-mentioned medical proton-synchrotron, described second long straight sections also comprises and to be connected between described first injection bump magnet and high frequency accelerator and to be close to the fast quadrupole magnet that described first injection bump magnet arranges.
In above-mentioned medical proton-synchrotron, described first mini straight sections also comprises and is connected to described 3rd horizontal focusing quadrupole magnet and second and deflects the first horizontal focusing six pole magnet between dipolar magnet; Described 3rd mini straight sections also comprises and is connected to described 6th horizontal focusing quadrupole magnet and the 6th and deflects the second horizontal focusing six pole magnet between dipolar magnet.
In above-mentioned medical proton-synchrotron, the deflection angle of the described first to the 8th deflection dipolar magnet is 45 °.
Owing to have employed above-mentioned technical solution, the present invention is by adopting the deflection dipolar magnet of superelevation field intensity and horizontal focusing and horizontal defocus quadrupole magnet, thus control its envelope function in less level, and then effectively increase the acceptance of synchrotron, add proton storage number, improve proton utilance and duty ratio, shorten treatment time; In addition, structure of the present invention closely, decrease unnecessary gap and magnet device, in order to the function realizing medical accelerator with the least possible component number, each magnet device in the present invention simultaneously also adopts higher-strength to reduce the girth of whole accelerator, thus efficiently utilize the space of synchrotron, and then farthest reduce the construction cost of Installation and Architecture, reduce treatment cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram in a standard cycle cycle of prior art synchrotron;
Fig. 2 is multi-energy cycle schematic diagram;
Fig. 3 is the structural representation of a kind of medical proton-synchrotron of the present invention;
Fig. 4 is the schematic diagram of the envelope function of a kind of medical proton-synchrotron of the present invention.
Embodiment
Below in conjunction with accompanying drawing, provide preferred embodiment of the present invention, and be described in detail.
First, ideal basis of the present invention is briefly described.
Find that principal element that limits synchronization accelerator stores population is that space charge effect near Implantation Energy causes the particle lost passing through resonant line and cause by research.The power of space charge effect depends primarily on the emittance storing population, Implantation Energy and storage bundle:
In formula (1), Δ ν is the frequency displacement that space charge effect causes, r
pbe classical radius, N stores population, β and γ is the relativistic factor injecting line, B
fthe pack factor, ε
rmsit is beam emittance.
Injector cost is depended in raising due to Implantation Energy, is difficult to improve, so improving the emittance storing population under same space charge frequency displacement is the most effective means.Have employed after multi-turn smears injection technique, the emittance storing particle can think the acceptance of synchrotron, and ignore the impact of dispersion, acceptance is:
In formula (2), D is vacuum size, and β is envelope function.
Therefore, problem just change into how when keep synchrotron girth as far as possible little (synchrotron girth try one's best I make the cost of synchrotron lower), reduce envelope function as far as possible.Known, adopt weak focus can realize little envelope function under less element, but this method is easily installed by magnet and the impact of processing equal error, thus store number of particles contradict with increase.Research finds, strengthening bending magnet field intensity can effective enhanced level focus strength, thus reduces envelope function, while can shorten synchrotron girth again.Therefore, the present invention is intended to suitably increase by four pole iron quantity for control envelope function.
Based on foregoing, as shown in Figure 3, the present invention, i.e. a kind of medical proton-synchrotron, comprising:
Connect successively first to the 8th deflection dipolar magnet 1-8, wherein the first deflection dipolar magnet 1 and the 8th deflects dipolar magnet 8 and is connected to form a loop configuration with deflected beam (beam direction is the clockwise direction of loop configuration in Fig. 3), and eliminate weak focus, wherein the deflection angle of the first to the 8th deflection dipolar magnet 1-8 is 45 °;
Be connected to that the first deflection dipolar magnet 1 and the 8th to deflect between dipolar magnet 8, first deflects that dipolar magnet 1 and second deflects between dipolar magnet 2, quadrupole deflector dipolar magnet 4 and the 5th to deflect between dipolar magnet 5 and the 5th deflect dipolar magnet 5 and the 6th and deflect first to fourth long straight sections between dipolar magnet 6; And
Be connected to the second deflection dipolar magnet 2 and the 3rd to deflect between dipolar magnet 3, the 3rd to deflect between dipolar magnet 3 and quadrupole deflector dipolar magnet 4, the 6th deflect dipolar magnet 6 and the 7th and to deflect between dipolar magnet 7 and the 7th deflect dipolar magnet 7 and the 8th and deflect first to fourth mini straight sections between dipolar magnet 8.
Be connected by the vacuum chamber (not shown) of device between each parts above.Specifically, in the present embodiment:
First long straight sections comprises: the first horizontal defocus quadrupole magnet 11 arranged near the first deflection dipolar magnet 1, near the first horizontal focusing quadrupole magnet 12 that the 8th deflection dipolar magnet 8 is arranged, be connected to the injection electrostatic septum 13 between the first horizontal defocus quadrupole magnet 11 and the first horizontal focusing quadrupole magnet 12, inject first between electrostatic septum 13 and the first horizontal focusing quadrupole magnet 12 and to resonate six pole magnet 15 with injecting the magnetostatic septum magnet 14 of injection that electrostatic septum 13 is connected and be connected to,
Second long straight sections comprises: the second horizontal focusing quadrupole magnet 21 arranged near the first deflection dipolar magnet 1, near the second horizontal defocus quadrupole magnet 22 that the second deflection dipolar magnet 12 is arranged, be connected to the first injection bump magnet 23 between the second horizontal defocus quadrupole magnet 22 and the second horizontal focusing quadrupole magnet 21, be connected to the high frequency accelerator 24 between the first injection bump magnet 23 and the second horizontal focusing quadrupole magnet 21 and be connected between the first injection bump magnet 23 and high frequency accelerator 24 and be close to the fast quadrupole magnet 25 that the first injection bump magnet 23 arranges,
3rd long straight sections comprises: the 4th horizontal focusing quadrupole magnet 31 arranged near quadrupole deflector dipolar magnet 4, near the 4th horizontal defocus quadrupole magnet 32 that the 5th deflection dipolar magnet 5 is arranged, be connected to second between the 4th horizontal focusing quadrupole magnet 31 and the 4th horizontal defocus quadrupole magnet 32 to resonate six pole magnet 33 and be connected to extraction electrostatic septum between the second resonance six pole magnet 33 and the 4th horizontal defocus quadrupole magnet 32 34 (deflect dipolar magnet 5 upstream along beam direction the 5th and configure the requirement of strength that the 4th horizontal defocus quadrupole magnet 32 can reduce drawing electrostatic septum 34),
4th long straight sections comprises: the 5th horizontal focusing quadrupole magnet 41 arranged near the 5th deflection dipolar magnet 5, the 5th horizontal defocus quadrupole magnet 42 arranged near the 6th deflection dipolar magnet 6, be connected with the 5th horizontal focusing quadrupole magnet 41 successively first draw magnetostatic septum magnet 43 and second and draw magnetostatic septum magnet 44;
First mini straight sections comprises: the 3rd horizontal focusing quadrupole magnet 51, be connected to the horizontal high frequency pumping electrode 52 between the 3rd deflection dipolar magnet 3 and the 3rd horizontal focusing quadrupole magnet 51 and be connected to the 3rd horizontal focusing quadrupole magnet 51 and second and deflect the first horizontal focusing six pole magnet 53 between dipolar magnet 2;
Second mini straight sections comprises: the 3rd horizontal defocus quadrupole magnet 61;
3rd mini straight sections comprises: the 6th horizontal focusing quadrupole magnet 71 and be connected to the 6th horizontal focusing quadrupole magnet 71 and the 6th and deflect the second horizontal focusing six pole magnet 72 between dipolar magnet 6;
4th mini straight sections comprises: the 6th horizontal defocus quadrupole magnet 81, be connected to the 6th horizontal defocus quadrupole magnet 81 and the 7th and deflect the second injection bump magnet 82 between dipolar magnet 7.
The present invention in use, provides low energy proton bundle through the magnetostatic septum magnet 14 of injection by injector in a treatment cycle, injects electrostatic septum 13, first, second injection bump magnet 23,82 and first is injected into medical proton-synchrotron of the present invention to the 8th deflection dipolar magnet 1-8 etc. and forms storage; Then, according to treatment requirement, by synchronously rise deflection dipolar magnet and focusing, defocus the field intensity of quadrupole magnet, proton energy under the effect of high frequency accelerator 24 gets a promotion.At the energy of corresponding treatment, under the effect of RFKO exciting electrode 52, first, second resonance six pole magnet 15,33, be diffused into extraction channel, draw electrostatic septum 34 and be drawn out to outside proton-synchrotron until patient with first, second extraction electrostatic septum magnet 43,44.When needed, can stop drawing in this treatment cycle, and switch energy enforcement extraction.
Fig. 4 is horizontal and vertical line envelope function of the present invention, and wherein, ordinate represents the size of this function, and unit is rice (m), and abscissa represents the lengthwise position in synchrotron, and unit is rice (m).As seen from Figure 4, it is little that the present invention has envelope function, the feature that effective acceptance is large, and analog computation shows to store more proton.
In sum, the 8 pieces of deflection dipolar magnets that present invention employs superelevation field intensity reduce envelope function and shorten girth, and 6 blocks of horizontal focusing quadrupole magnets and 6 blocks of horizontal defocus quadrupole magnets effectively can control the size of envelope function, in addition, the present invention also can adopt above-mentioned each quadrupole magnet and the combination of correcting coil (not shown), thus reduces space hold.
Above-described, be only preferred embodiment of the present invention, and be not used to limit scope of the present invention, the above embodiment of the present invention can also make a variety of changes.Namely every claims according to the present patent application and description are done simple, equivalence change and modify, and all fall into the claims of patent of the present invention.The not detailed description of the present invention be routine techniques content.
Claims (5)
1. a medical proton-synchrotron, is characterized in that, described accelerator comprises:
Connect successively first to the 8th deflection dipolar magnet, wherein said first deflection dipolar magnet and the 8th deflects dipolar magnet and is connected to form a loop configuration;
Be connected to that described first deflection dipolar magnet and the 8th to deflect between dipolar magnet, first deflects that dipolar magnet and second deflects between dipolar magnet, quadrupole deflector dipolar magnet and the 5th to deflect between dipolar magnet and the 5th deflect dipolar magnet and the 6th and deflect first to fourth long straight sections between dipolar magnet; And
Be connected to described second deflection dipolar magnet and the 3rd to deflect between dipolar magnet, the 3rd to deflect between dipolar magnet and quadrupole deflector dipolar magnet, the 6th deflect dipolar magnet and the 7th and to deflect between dipolar magnet and the 7th deflect dipolar magnet and the 8th and deflect first to fourth mini straight sections between dipolar magnet;
Wherein, described first long straight sections comprises the first horizontal defocus quadrupole magnet arranged near described first deflection dipolar magnet and the first horizontal focusing quadrupole magnet arranged near described 8th deflection dipolar magnet;
Described second long straight sections comprises the second horizontal focusing quadrupole magnet arranged near described first deflection dipolar magnet and the second horizontal defocus quadrupole magnet arranged near described second deflection dipolar magnet;
Described first mini straight sections comprises the 3rd horizontal focusing quadrupole magnet; Described second mini straight sections comprises the 3rd horizontal defocus quadrupole magnet;
Described 3rd long straight sections comprises the 4th horizontal focusing quadrupole magnet arranged near described quadrupole deflector dipolar magnet and the 4th horizontal defocus quadrupole magnet arranged near described 5th deflection dipolar magnet;
Described 4th long straight sections comprises the 5th horizontal focusing quadrupole magnet arranged near described 5th deflection dipolar magnet and the 5th horizontal defocus quadrupole magnet arranged near described 6th deflection dipolar magnet;
Described 3rd mini straight sections comprises the 6th horizontal focusing quadrupole magnet; Described 4th mini straight sections comprises the 6th horizontal defocus quadrupole magnet.
2. medical proton-synchrotron according to claim 1, is characterized in that,
Described first long straight sections also comprises: be connected to the magnetostatic septum magnet of injection that described first horizontal defocus quadrupole magnet and the injection electrostatic septum between the first horizontal focusing quadrupole magnet be connected with this injection electrostatic septum and be connected to first between described injection electrostatic septum and the first horizontal focusing quadrupole magnet and to resonate six pole magnet;
Described second long straight sections also comprises: the high frequency accelerator being connected to the first injection bump magnet between described second horizontal defocus quadrupole magnet and the second horizontal focusing quadrupole magnet and being connected between this first injection bump magnet and the second horizontal focusing quadrupole magnet;
Described 3rd long straight sections also comprises: be connected to second between described 4th horizontal focusing quadrupole magnet and the 4th horizontal defocus quadrupole magnet and resonate six pole magnet and be connected to this second extraction electrostatic septum resonated between six pole magnet and the 4th horizontal defocus quadrupole magnet;
Described 4th long straight sections also comprises: be connected with described 5th horizontal focusing quadrupole magnet successively first draws magnetostatic septum magnet and second draws magnetostatic septum magnet;
Described first mini straight sections also comprises: be connected to the horizontal high frequency pumping electrode between described 3rd deflection dipolar magnet and the 3rd horizontal focusing quadrupole magnet;
Described 4th mini straight sections also comprises: be connected to described 6th horizontal defocus quadrupole magnet and the 7th and deflect the second injection bump magnet between dipolar magnet.
3. medical proton-synchrotron according to claim 2, it is characterized in that, described second long straight sections also comprises and to be connected between described first injection bump magnet and high frequency accelerator and to be close to the fast quadrupole magnet that described first injection bump magnet arranges.
4. the medical proton-synchrotron according to claim 1,2 or 3, is characterized in that, described first mini straight sections also comprises and is connected to described 3rd horizontal focusing quadrupole magnet and second and deflects the first horizontal focusing six pole magnet between dipolar magnet; Described 3rd mini straight sections also comprises and is connected to described 6th horizontal focusing quadrupole magnet and the 6th and deflects the second horizontal focusing six pole magnet between dipolar magnet.
5. the medical proton-synchrotron according to claim 1,2 or 3, is characterized in that, the deflection angle of the described first to the 8th deflection dipolar magnet is 45 °.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106793449A (en) * | 2017-03-08 | 2017-05-31 | 中国科学院上海应用物理研究所 | A kind of medical superconduction proton-synchrotron |
| CN107007945A (en) * | 2017-05-15 | 2017-08-04 | 华中科技大学 | A kind of proton beam emphasizes method and system processed |
| CN107018619A (en) * | 2017-05-12 | 2017-08-04 | 合肥中科离子医学技术装备有限公司 | A kind of compact proton beam energy and energy spread control structure |
| CN108112154A (en) * | 2017-12-13 | 2018-06-01 | 惠州离子科学研究中心 | A kind of heavy ion synchrotron |
| CN108243552A (en) * | 2018-01-25 | 2018-07-03 | 中国科学院上海应用物理研究所 | A kind of treat uses proton-synchrotron |
| CN108243551A (en) * | 2018-01-25 | 2018-07-03 | 中国科学院上海应用物理研究所 | The proton-synchrotron that a kind of combined magnet is formed |
| CN108307578A (en) * | 2018-01-25 | 2018-07-20 | 中国科学院上海应用物理研究所 | A kind of proton-synchrotron using combined magnet |
| CN108770181A (en) * | 2018-05-24 | 2018-11-06 | 新瑞阳光粒子医疗装备(无锡)有限公司 | Synchrotron, particle beams accelerated method, device, equipment and storage medium |
| CN113382530A (en) * | 2021-07-22 | 2021-09-10 | 中国科学院上海高等研究院 | Medical proton synchrotron of super high dose rate |
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| CN101917815A (en) * | 2010-08-10 | 2010-12-15 | 中国科学院近代物理研究所 | Heavy ion or proton synchrotron with medical deflection magnetic focusing structure |
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