CN101827489B - For accelerating negative hydrogen and H2+Compact cyclotron - Google Patents
For accelerating negative hydrogen and H2+Compact cyclotron Download PDFInfo
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- CN101827489B CN101827489B CN2010101786009A CN201010178600A CN101827489B CN 101827489 B CN101827489 B CN 101827489B CN 2010101786009 A CN2010101786009 A CN 2010101786009A CN 201010178600 A CN201010178600 A CN 201010178600A CN 101827489 B CN101827489 B CN 101827489B
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- particle
- negative hydrogen
- accelerating
- compact cyclotron
- ion source
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- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 42
- 239000001257 hydrogen Substances 0.000 title claims abstract description 42
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 63
- 238000000605 extraction Methods 0.000 claims abstract description 16
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 16
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000004299 exfoliation Methods 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000019643 circumnutation Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
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Abstract
The invention relates to a method for accelerating negative hydrogen and H2 +The compact cyclotron comprises a magnet system, an injection system, a high-frequency system and an extraction system, wherein the injection system is respectively connected with a negative hydrogen ion source and an H2 +Ion source connection, negative hydrogen particles and H2 +The particles are acceleratedIn the process, the same injection system, magnet system, high-frequency system and extraction system are used. The invention can accelerate both negative hydrogen particles and H2 +The extraction of the two kinds of particles is carried out in a stripping extraction mode when the H is accelerated2 +When being particulate, H2 +The particles become 2H by exfoliation+The ion and extracted beam current is doubled, and the energy of the particles is halved, so that a high-current proton beam can be obtained, and the effect of one device with multiple purposes is realized.
Description
Technical field
The present invention relates to cyclotron, be specifically related to a kind of accelerating negative hydrogen, H of being used for
2 +Compact cyclotron.
Background technology
Cyclotron is that a kind of magnetic field that utilizes makes charged particle do circumnutation, the device that quickens repeatedly through high-frequency electric field at the volley, and its basic structure comprises magnet system, ion source, injected system and extraction system.
At present; Compact cyclotron has obtained using widely at scientific research, biomedical aspect, but these accelerator ubiquities flow strong little problem, and can only quicken the particle of single type; Like negative hydrogen particle; Therefore, can't satisfy scientific research, biomedicine experiment research, for example boron neutron capture therapy (BNCT) technology that needs big stream strong.
Summary of the invention
The objective of the invention is to defective, a kind of accelerating negative hydrogen, H of can be used in is provided to prior art
2 +Compact cyclotron, thereby can obtain the high current proton beam, realize the effect of multi-use.
For realizing above-mentioned purpose, technical scheme of the present invention is following: a kind of accelerating negative hydrogen, H of being used for
2 +Compact cyclotron, comprise magnet system, injected system, radio frequency system and extraction system, wherein, described injected system respectively with negative hydrogen ion source and H
2 +Ion source connects, negative hydrogen particle and H
2 +Particle is shared same injected system, magnet system, radio frequency system and extraction system in accelerator.
Further, aforesaid accelerating negative hydrogen, the H of being used for
2 +Compact cyclotron, wherein, the high frequency frequency of described radio frequency system is fixed, negative hydrogen particle and H
2 +Particle is 2: 1 at the speed ratio of compact cyclotron, and harmonic wave aero mode ratio is 1: 2.
Further, aforesaid accelerating negative hydrogen, the H of being used for
2 +Compact cyclotron, wherein, described magnet system comprises four magnetic poles, magnetic pole is the straight flange sector structure, forms fan-shaped paddy district between two adjacent magnetic poles.
Further, aforesaid accelerating negative hydrogen, the H of being used for
2 +Compact cyclotron, wherein, the magnetic pole of described magnet system fan angle is 52 °, the magnetic pole radius is 60cm; Accelerating negative hydrogen particle and H
2 +The Feng Qu of particle, field, paddy district are respectively 1.90 teslas, 0.40 tesla.
Further, aforesaid accelerating negative hydrogen, the H of being used for
2 +Compact cyclotron, wherein, described negative hydrogen ion source and H
2 +The particle energy ratio that ion source is drawn is chosen as 2: 1.
Further, aforesaid accelerating negative hydrogen, the H of being used for
2 +Compact cyclotron, wherein, described injected system and the coaxial setting of magnet system, negative hydrogen particle and H
2 +Particle is respectively from the axial injection of magnet system.
Further, aforesaid accelerating negative hydrogen, the H of being used for
2 +Compact cyclotron, wherein, described extraction system is peeled off target and will be born hydrogen particle and H through identical
2 +Particle is peeled off and is drawn.
Beneficial effect of the present invention is following: but both accelerating negative hydrogen particle of the present invention can quicken H again
2 +Particle, drawing of two kinds of particles all is to adopt to peel off the mode of drawing, when drawing H
2 +During particle, H
2 +Particle becomes 2 H
+Particle, educt beaming flow intensity doubles, and draws particle energy and reduces by half, and can obtain the high current proton beam like this, realizes the effect of multi-use.
Description of drawings
Fig. 1 is used for accelerating negative hydrogen, H for the present invention
2 +The structural representation of compact cyclotron;
Fig. 2 is the sector magnet of magnet system of the present invention and the sketch map of frequency cavity.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed description.
As shown in Figure 1, the primary structure of compact accelerator provided by the present invention is formed and is comprised magnet system 5, negative hydrogen ion source 3, H
2 +Ion source 4, injected system 2, radio frequency system and extraction system 1, negative hydrogen particle and H
2 +Particle is shared same injected system 2, magnet system 5, radio frequency system and extraction system 1 in accelerator.Injected system 2 and magnet system 5 coaxial settings, negative hydrogen particle and H
2 +Particle is respectively from the axial injection of magnet system 5.Drawing of two kinds of particles all is to adopt the mode of drawing of peeling off.Radio frequency system mainly comprises high frequency transmitter and frequency cavity 8 (as shown in Figure 2); Frequency cavity 8 is installed in the main magnet paddy district 7; High frequency transmitter is that frequency cavity 8 provides high frequency voltage, and function is the same with the main magnet power supply, can obtain energy during particle process frequency cavity 8 and obtain quickening.
For example, at negative hydrogen particle that quickens 20MeV/A and the H that quickens 5MeV/A
2 +In the cyclotron of particle, because the magnet steel degree of the negative hydrogen particle of 20MeV/A is 0.649539T.m, the H of 5MeV/A
2 +Particle 0.646701T.m, for this reason, the structure of the magnet system of selecting for use 5 is as shown in Figure 2, comprises four magnetic poles, and magnetic pole 6 is the straight flange sector structure, forms fan-shaped paddy district 7 between two adjacent magnetic poles, and magnetic pole fan angle is 52 °, and the magnetic pole radius is 60cm; Accelerating negative hydrogen particle and H
2 +The Feng Qu of particle, field, paddy district are respectively 1.90T (tesla), 0.40T (tesla).Select negative hydrogen particle and H
2 +The speed of particle is respectively～17.2MHz and～8.6MHz, and harmonic mode is respectively 2 and 4.Harmonic mode be 2 and 4 be illustrated in the rotation of particle in the accelerator frequency be 1/2 and 1/4 of high frequency frequency.For a compact cyclotron, the structure of frequency cavity 8 can't change, and the frequency of high frequency is fixed.
Negative hydrogen and H
2 +The energy of particle is selected 40KeV and 20KeV (negative hydrogen and H respectively
2 +The energy of ions ratio is 2: 1), the parameter of injected system element can remain unchanged, and the transmission matrix of injected system remains unchanged like this, and this is because the transmission matrix of each element of injected system is only relevant with the length of the magnet steel degree of accelerated particle and element.Therefore, among the present invention in the structure of injected system 2, extraction system 1 and radio frequency system and the accelerator that quickens the single type particle structure of injected system, extraction system and radio frequency system identical.Transmission matrix like quadrupole lens is:
The function of deflector is the line that vertical line is changed into horizontal movement, and the voltage of deflector is directly proportional with the kinetic energy of particle, and promptly when injecting the negative hydrogen particle of 40KeV, the voltage of deflector is 8 kilovolts, then at the H that injects 20KeV
2 +During particle, the voltage of deflector is 4 kilovolts (deflector height A=2T/qV, T are particle kinetic energy, and V is a deflector voltage, and q is a charge number).Variation on the direction also takes place with the difference of particle in the magnetic field that magnet system produces.That is to say, change the direction in magnetic field through the direction that changes the main magnet power supply.Peel off target and will bear hydrogen and H through identical at last
2 +Particle is peeled off, and draws H
+, the H of different-energy
+Ion is drawn through the passage of extraction system 1.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technology thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (5)
1. one kind is used for accelerating negative hydrogen, H
2 +Compact cyclotron, comprise magnet system, injected system, radio frequency system and extraction system, it is characterized in that: described injected system respectively with negative hydrogen ion source and H
2 +Ion source connects, negative hydrogen particle and H
2 +Particle is shared same injected system, magnet system, radio frequency system and extraction system in accelerator; The high frequency frequency of described radio frequency system is fixed, negative hydrogen particle and H
2 +Particle is 2: 1 at the speed ratio of compact cyclotron, and harmonic wave aero mode ratio is 1: 2; Described negative hydrogen ion source and H
2 +The energy ratio of the particle that ion source is drawn is 2: 1.
2. accelerating negative hydrogen, the H of being used for as claimed in claim 1
2 +Compact cyclotron, it is characterized in that: described magnet system comprises four magnetic poles, and magnetic pole is the straight flange sector structure, forms fan-shaped paddy district between two adjacent magnetic poles.
3. accelerating negative hydrogen, the H of being used for as claimed in claim 2
2 +Compact cyclotron, it is characterized in that: the magnetic pole of described magnet system fan angle is 52 °, and the magnetic pole radius is 60cm; Accelerating negative hydrogen particle and H
2 +The Feng Qu of particle, field, paddy district are respectively 1.90 teslas, 0.40 tesla.
4. like claim 1 or 2 or 3 described accelerating negative hydrogen, the H of being used for
2 +Compact cyclotron, it is characterized in that: described injected system and the coaxial setting of magnet system, negative hydrogen particle and H
2 +Particle is respectively from the axial injection of magnet system.
5. like claim 1 or 2 or 3 described accelerating negative hydrogen, the H of being used for
2 +Compact cyclotron, it is characterized in that: described extraction system is peeled off target and will be born hydrogen particle and H through identical
2 +Particle is peeled off and is drawn.
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| CN2010101786009A CN101827489B (en) | 2010-05-21 | 2010-05-21 | For accelerating negative hydrogen and H2+Compact cyclotron |
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|---|---|---|---|
| CN2010101786009A CN101827489B (en) | 2010-05-21 | 2010-05-21 | For accelerating negative hydrogen and H2+Compact cyclotron |
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| CN101827489A CN101827489A (en) | 2010-09-08 |
| CN101827489B true CN101827489B (en) | 2012-02-15 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103517537B (en) * | 2012-06-20 | 2016-03-30 | 中国原子能科学研究院 | Two stripping film individual pen line outbound courses in compact cyclotron |
| CN106211537B (en) * | 2016-08-26 | 2019-01-29 | 中国原子能科学研究院 | A kind of superconducting cyclotron vacuum pumping system |
| CN106961781B (en) * | 2017-04-24 | 2017-12-22 | 华中科技大学 | A kind of cyclotron peels off target drive device |
| CN110913561B (en) * | 2019-12-09 | 2021-03-09 | 中国原子能科学研究院 | Device and method for extracting single-ring beam of stripping extraction cyclotron |
| CN116489864B (en) * | 2023-01-09 | 2024-01-30 | 中国科学院近代物理研究所 | Compact strong current H 2+ Superconducting cyclotron |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1209037A (en) * | 1997-08-14 | 1999-02-24 | 深圳奥沃国际科技发展有限公司 | Longspan cyclotron |
| JP3098590B2 (en) * | 1991-11-22 | 2000-10-16 | 理化学研究所 | Method and apparatus for accelerating cyclotron |
| CN1631061A (en) * | 2002-04-25 | 2005-06-22 | Eps·爱玛·工程促进会·工程及医学应用加速器会 | Particle accelerator |
-
2010
- 2010-05-21 CN CN2010101786009A patent/CN101827489B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3098590B2 (en) * | 1991-11-22 | 2000-10-16 | 理化学研究所 | Method and apparatus for accelerating cyclotron |
| CN1209037A (en) * | 1997-08-14 | 1999-02-24 | 深圳奥沃国际科技发展有限公司 | Longspan cyclotron |
| CN1631061A (en) * | 2002-04-25 | 2005-06-22 | Eps·爱玛·工程促进会·工程及医学应用加速器会 | Particle accelerator |
Non-Patent Citations (2)
| Title |
|---|
| 张天爵等.强流回旋加速器综合试验装置的设计与建造.《Chinese Physics C(HEP & NP)》.2008,第32卷(第增刊I期),第237-240页. * |
| 高国强.紧凑型回旋加速器主磁铁设计.《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》.2009,(第6期),第1-59页. * |
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| CN101827489A (en) | 2010-09-08 |
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