CN104703380B - The more beamforming drift tube ion accelerators of single-chamber - Google Patents
The more beamforming drift tube ion accelerators of single-chamber Download PDFInfo
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- CN104703380B CN104703380B CN201510071094.6A CN201510071094A CN104703380B CN 104703380 B CN104703380 B CN 104703380B CN 201510071094 A CN201510071094 A CN 201510071094A CN 104703380 B CN104703380 B CN 104703380B
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Abstract
The present invention relates to a kind of ion acceleration equipment technical field, more particularly, to a kind of more beamforming drift tube ion accelerators of single-chamber.It is characterized in including cavity, described cavity is provided at both ends with end plate, it is symmetrical above and below in cavity to be provided with two T-shaped plates, it is sequentially set with multistage cylinder drift tube on center line successively along cavity, two beam channels are provided with each drift tube, described drift tube is fixed on T-shaped plate by drift tube support bar, and accelerating gap is provided between adjacent drift tube and is alternately mounted on T-shaped plate symmetrical above and below, described T-shaped plate is provided at both ends with the tuner of cutting-type.It realizes that high current accelerates by way of accelerating two lines simultaneously in single cavity, avoids ion and is largely lost because of space charge effect in low energy region.To accelerate low energy high current ion to save big quantity space and cost, it has, and high high current acceleration capacity, efficiency of transmission are high, accelerating gradient is high, accelerate the good feature of electrical efficiency, can be used as the injector for the treatment of of cancer facility and semiconductor.
Description
Technical field
The present invention relates to a kind of ion acceleration equipment technical field, more particularly, to a kind of more beamforming drift tube ions of single-chamber
Accelerator.
Background technology
Cast linear accelerator (DTL) drift about from being born 1932, just turns into the normal temperature accelerator knot of current most main flow
Structure.When its acceleration principle is that the charged particle of injection passes through designed drift ligament, drift ligament is exactly positive electricity
, therefore charged particle can be accelerated on field direction；By half of high frequency period, the electric field for the ligament that drifts about is changed into negative electric field
When, particle just enters inside drift tube, because electromagnetic shielding effect, charged particle will not experience negative electric field and be subtracted
Speed；When also passing through down half of high frequency period into next drift ligament, electric field is changed into positive electric field again in the ligament that drifts about,
Therefore charged particle is in acceleration tendency in total.
So far, all drift cast linear accelerators that people build all only have a beam channel footpath, i.e., can only
Accelerate single beam ion, with the increase that people are required high-intensity beam stream application, this single beam channel footpath accelerating structure is difficult
Meet to require, because list beam line can show very strong space charge effect and cause quality of beam to be deteriorated very when stream is strong higher
Lost to ion is made.
The content of the invention
The purpose of the present invention is to solve the shortcomings of the prior art providing a kind of more beamforming drift tube ions of single-chamber accelerates dress
Put.It can accelerate the two beam lines for coming from front end injector simultaneously under the same conditions at work, so that its is defeated
The total beam stream gone out obtains by force double but and can makes the space charge effect of each single beam line be well controlled simultaneously, from
And very Gao Liuqiang line can not be accelerated by solving the problems, such as prior art.
To achieve the above object, the technical scheme taken of the present invention is：The more beamforming drift tube ions of described single-chamber accelerate
Device, is characterized in including cavity, and described cavity is provided at both ends with end plate, symmetrical above and below in cavity to be provided with two T-shaped plates,
It is sequentially set with multistage cylinder drift tube on center line successively along cavity, two lines is provided with each drift tube and are led to
Road, described drift tube are fixed on T-shaped plate by drift tube support bar, and accelerating gap is provided between adjacent drift tube simultaneously
T-shaped plate symmetrical above and below is alternately mounted on, described T-shaped plate is provided at both ends with the tuner of cutting-type.
Two beam channels on described drift tube include the first beam channel and the second beam channel, and the first line leads to
The central axis of road and the second beam channel along cavity is symmetrical arranged and aperture size is identical.
Described drift tube is cylindrical electrode, when cavity does continuous wave operation or does high duty ratio operation, by sending out
When thermal deformation can cause cavity frequency detuning because of caused by feed-in power during heat calculating operation, cooling is set inside drift tube
Loop, to empty water route, welded seal designs cooling circuit again, and cooling circuit passes through drift tube support bar and T-shaped plate and whole cold
But system is connected as a single entity.
The beam focusing mode of described drift pipeline section is interaction phase pack mode, if interactive according to calculating during operation
When phase focusing mode can not meet beam bunching, carried out by way of permanent magnet is set inside drift tube come halved tie stream
Pack.
Described cavity is vacuum chamber cylinder, and its vacuum is 10-4-10-7Pa。
Two described T-shaped plates are symmetrically mounted in cavity by welding manner or screw fixation method, described drift
Pipe support bar is moved to be arranged on T-shaped plate by welding manner or screw fixation method.
The more beamforming drift tube ion accelerators of described single-chamber are used for the equipment for treating head part's tumour, are characterized in wrapping
The laser ion source set in the more beamforming drift tube ion accelerator front ends of described single-chamber is included, in described laser ion source
High voltage platform is provided with, target is arranged in high voltage platform, and high voltage platform is drawn by the first line extraction channel and the second line
Passage is corresponding with the more beamforming drift tube ion accelerators of single-chamber to be connected, the more beamforming drift tube ion accelerators of described single-chamber
Rear end is disposed with the first deflection magnet, the second deflection magnet and beam magnet, and beam current tube, line are terminated after beam magnet
Rear end of pipeline is correspondingly arranged on screening arrangement, and the electromagnetic pump being sequentially connected, heat exchanger and neutron-producing target are provided with screening arrangement,
Electromagnetic pump and heat exchanger are connected with control system, and proton excites neutron-producing target to produce neutron entrance by beam current tube.
Insulating A High-Voltage line is additionally provided with described high voltage platform, described treatment radiating system corresponds to human body and head is swollen
Knurl is set, and is treated in radiating system and is additionally provided with health-monitoring installation.
The first described line extraction channel and the second line extraction channel correspond to be added with the more beamforming drift tube ions of single-chamber
Two beam channels on drift tube in the cavity of speed variator are correspondingly arranged.
The beneficial effects of the invention are as follows：The more beamforming drift tube ion accelerators of described single-chamber, it is greatly improved
The Bunch current of drift cast linear accelerator, is mainly used for the acceleration of high current low energy ion line and the note of high-current accelerator
Enter the applied accelerator such as device.Realize that high current accelerates by way of accelerating two lines simultaneously in single cavity, keep away
Exempt from ion largely to lose because of space charge effect in low energy region.The present invention saves largely for acceleration low energy high current ion
Space and cost, and more tight end helps, is more practical.It has high high high current acceleration capacity, efficiency of transmission, accelerating gradient height, added
The good feature of fast electrical efficiency.
Brief description of the drawings：
Fig. 1 is according to principle schematic diagram of the present invention；
Fig. 2 is the left view principle schematic diagram according to Fig. 1 of the present invention；
Fig. 3 is sectional structure principle schematic at the C-C in Fig. 2 of the present invention；
Fig. 4 is in the unit construction principle schematic diagram for treating head part's tumour according to the present invention.
Shown in figure：1. cavity；2.T templates；3. drift tube support bar；4. drift tube；5. the first beam channel；6. second
Beam channel；7. tuner；8. end plate；9. accelerating gap；10. laser ion source；11. target；12. high voltage platform；13. insulation is high
Line ball；14. the first line extraction channel；15. the second line extraction channel；16. the more beamforming drift tube ion accelerators of single-chamber；
17. the first deflection magnet；18. the second deflection magnet；19. beam magnet；20. beam current tube；21. proton；22. screening arrangement；
23. electromagnetic pump；24. heat exchanger；25. neutron-producing target；26. control system；27. neutron；28. treat radiating system；29. head is swollen
Knurl；30. human body；31. health-monitoring installation.
Embodiment
It is described in further detail below in conjunction with the preferred example shown in accompanying drawing：
As shown in Figures 1 to 3, the more beamforming drift tube ion accelerators of described single-chamber, it is characterized in including cavity 1, institute
The cavity 1 stated is provided at both ends with end plate 8, symmetrical above and below in cavity 8 to be provided with two T-shaped plates 2, along cavity 8 on center line according to
It is secondary to be sequentially set with multistage cylinder drift tube 4, two beam channels are provided with each drift tube 4, described drift tube 4 is logical
Cross drift tube support bar 3 to be fixed on T-shaped plate 2, accelerating gap 9 is provided between adjacent drift tube 4 and is alternately mounted on
Lower symmetrical T-shaped plate 2, described T-shaped plate 2 are provided at both ends with the tuner 7 of cutting-type.
Further, two beam channels on described drift tube 4 include the first beam channel 5 and the second beam channel 6,
First beam channel 5 is symmetrical arranged with central axis of second beam channel 6 along cavity 1 and aperture size is identical.
Further, described drift tube 4 is cylindrical electrode, when cavity 1 does continuous wave operation or does high duty ratio fortune
During row, when thermal deformation can cause cavity frequency detuning because of caused by feed-in power when being run as heating calculating, in drift tube
Portion sets cooling circuit, and to empty water route, welded seal designs cooling circuit again, and cooling circuit passes through drift tube support bar 3 and T
Template 2 and whole cooling system are connected as a single entity.
Further, the beam focusing mode of 4 sections of described drift tube is interaction phase pack mode, according to calculating during operation
If interaction phase focusing mode be when can not meet beam bunching, by way of permanent magnet is set inside drift tube come pair
Line carries out pack.
Further, described cavity 1 is vacuum chamber cylinder, and its vacuum is 10-4-10-7Pa。
Further, described two T-shaped plates 2 are symmetrically mounted in cavity by welding manner or screw fixation method,
The described support bar of drift tube 4 is arranged on T-shaped plate 2 by welding manner or screw fixation method.
As shown in figure 4, the more beamforming drift tube ion accelerators of described single-chamber can be used for setting for treatment head part's tumour
It is standby, it is characterized in being included in the laser ion source 10 that the more front ends of beamforming drift tube ion accelerator 16 of described single-chamber are set,
High voltage platform 12 is provided with described laser ion source 10, target 11 is arranged in high voltage platform 12, and high voltage platform 12 passes through
One line extraction channel 14 and the second line extraction channel 15 are corresponding with the more beamforming drift tube ion accelerators 16 of single-chamber connected,
The more rear ends of beamforming drift tube ion accelerator 16 of described single-chamber are disposed with the first deflection magnet 17, the second deflection magnet
18 and beam magnet 19, beam current tube 20 is terminated after beam magnet 19, the rear end of beam current tube 20 is correspondingly arranged on screening arrangement 22,
The electromagnetic pump 23 being sequentially connected, heat exchanger 24 and neutron-producing target 25, electromagnetic pump 23 and heat exchanger are provided with screening arrangement 22
24 are connected with control system 26, and proton 21 excites neutron-producing target 25 to produce neutron 27 into treatment radiating system by beam current tube 20
28。
Further, Insulating A High-Voltage line 13 is additionally provided with described high voltage platform 12, described treatment radiating system 28 is right
Answer human body 30 and head tumor 29 to set, treat in radiating system 28 and be additionally provided with health-monitoring installation 31.
Further, the first described line extraction channel 14 and the corresponding beamforming drifts more with single-chamber of the second line extraction channel 15
Two beam channels on drift tube 4 moved in the cavity 1 of pipe ion accelerator 16 are correspondingly arranged.
The equipment that the more beamforming drift tube ion accelerators of described single-chamber can be used for treatment head part's tumour, in use,
The more beamforming drift tube ion accelerators of single-chamber accelerate the proton of necessary amount, and to necessary energy, proton beam is when by lithium target
Generation nuclear reaction, radiates neutron, different with the BNCT using reactor, can be in by neutron caused by accelerator
The tumour affected part of sub- decelerator can direct irradiation patient., can be by carrying because cancer cell is known as hobby to Boron members
It is preceding to patient feed Boron compounds but cancer cell absorption Boron elements, and the because neutron reaction area of Boron elements
It is larger, thus Boron element reaction of the neutron when irradiating human body in majority and cancer cell caused by proton target practice, Jin Erda
To the effect of only killing cancer cell.The use of the accelerator is not only to control used in the high current injector as needed for BNCT, more can be with
It is used as the injector of the superelevation high currents such as heavy ion inertial drive core fusion.Because it can be obtained by several times using a cavity to use
The effect of cavity at present, therefore can be reached using the more beamforming DTL accelerators of single-chamber and reduce investment outlay, save space-efficient purpose, it is non-
Often it is easy to popularize, is rare Worth Expecting, outstanding accelerator installation.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, that is made such as increases any modification, equivalent substitution and improvements of beam channel etc., should be included in the present invention's
Within protection domain.
Claims (6)
1. a kind of more beamforming drift tube ion accelerators of single-chamber, are characterized in including cavity, described cavity is provided at both ends with
End plate, it is symmetrical above and below in cavity to be provided with two T-shaped plates, it is sequentially set with multistage cylinder drift on center line successively along cavity
Pipe is moved, is provided with two beam channels on each drift tube, described drift tube is fixed on T-shaped plate by drift tube support bar
On, accelerating gap is provided between adjacent drift tube and is alternately mounted on T-shaped plate symmetrical above and below, described T-shaped plate both ends
It is provided with the tuner of cutting-type；Two beam channels on described drift tube include the first beam channel and the second line leads to
Road, the central axis of the first beam channel and the second beam channel along cavity is symmetrical arranged and aperture size is identical；Described
Drift tube is cylindrical electrode, when cavity does continuous wave operation or does high duty ratio operation, by heating calculate operation when because
When thermal deformation can cause cavity frequency detuning caused by feed-in power, cooling circuit, cooling circuit are set inside drift tube
To empty water route, welded seal designs again, and cooling circuit is linked as one by drift tube support bar and T-shaped plate and whole cooling system
Body；The beam focusing mode of described drift pipeline section is interaction phase pack mode, if according to calculating interaction phase during operation
When the type of focusing can not meet beam bunching, gathered by way of permanent magnet is set inside drift tube come halved tie stream
Beam.
2. the more beamforming drift tube ion accelerators of single-chamber as claimed in claim 1, it is characterised in that：Described cavity is true
Cavity cylinder, its vacuum are 10-4-10-7Pa。
3. the more beamforming drift tube ion accelerators of single-chamber as claimed in claim 1, it is characterised in that：Described two are T-shaped
Plate is symmetrically mounted in cavity by welding manner or screw fixation method, and described drift tube support bar passes through welding manner
Or screw fixation method is arranged on T-shaped plate.
4. a kind of more beamforming drift tube ion accelerators of single-chamber as claimed in claim 1 are used to treat setting for head part's tumour
It is standby, it is characterized in that it is included in the laser ion source that the more beamforming drift tube ion accelerator front ends of described single-chamber are set, it is described
Laser ion source in be provided with high voltage platform, target is arranged in high voltage platform, and high voltage platform passes through the first line extraction channel
With the second line extraction channel is corresponding with the more beamforming drift tube ion accelerators of single-chamber is connected, the more beamforming drifts of described single-chamber
Pipe ion accelerator rear end is disposed with the first deflection magnet, the second deflection magnet and beam magnet, beam magnet rear end
Beam current tube is connect, beam current tube rear end is correspondingly arranged on screening arrangement, the electromagnetic pump being sequentially connected, heat are provided with screening arrangement
Exchanger and neutron-producing target, electromagnetic pump and heat exchanger are connected with control system, and proton excites neutron-producing target to produce by beam current tube
Neutron enters treatment radiating system.
5. the more beamforming drift tube ion accelerators of single-chamber as claimed in claim 4 are used for the equipment for treating head part's tumour,
It is characterized in that：Insulating A High-Voltage line is additionally provided with described high voltage platform, described treatment radiating system corresponds to human body and head
Portion's tumour is set, and is treated in radiating system and is additionally provided with health-monitoring installation.
6. the more beamforming drift tube ion accelerators of single-chamber as claimed in claim 4 are used for the equipment for treating head part's tumour,
It is characterized in that：The first described line extraction channel and the second line extraction channel correspond to and the more beamforming drift tube ions of single-chamber
Two beam channels on drift tube in the cavity of accelerator are correspondingly arranged.
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| CN106683737B (en) * | 2017-02-14 | 2018-05-29 | 中国科学院合肥物质科学研究院 | A kind of gaseous state target neutron source |
| CN107318213B (en) * | 2017-07-06 | 2019-05-31 | 复旦大学 | The experimental provision of high electric conduction |
| CN109819579B (en) * | 2019-02-02 | 2021-04-20 | 中国科学院近代物理研究所 | Mechanical structure of high-frequency electric focusing ion accelerating device and assembling method thereof |
| CN111741588A (en) * | 2020-07-02 | 2020-10-02 | 广东太微加速器有限公司 | High-frequency resonance cavity with novel cooling structure |
| CN115209606A (en) * | 2022-06-22 | 2022-10-18 | 卢小龙 | Parallel acceleration type strong current ion accelerator |
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