CN108260272A - A kind of accelerator magnet with superpower trapped particle ability - Google Patents
A kind of accelerator magnet with superpower trapped particle ability Download PDFInfo
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- CN108260272A CN108260272A CN201810081766.5A CN201810081766A CN108260272A CN 108260272 A CN108260272 A CN 108260272A CN 201810081766 A CN201810081766 A CN 201810081766A CN 108260272 A CN108260272 A CN 108260272A
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- 239000002245 particle Substances 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 claims description 19
- 230000004907 flux Effects 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 239000000696 magnetic material Substances 0.000 claims description 5
- 230000035699 permeability Effects 0.000 claims description 4
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 2
- 230000003467 diminishing effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 2
- 230000035515 penetration Effects 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 230000001133 acceleration Effects 0.000 description 5
- 239000000306 component Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000009659 non-destructive testing Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/04—Magnet systems, e.g. undulators, wigglers; Energisation thereof
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Particle Accelerators (AREA)
Abstract
The invention discloses a kind of accelerator magnet with superpower trapped particle ability, including：Upper yoke, main driving coil, guide magnet one, pole-face one, electronics accelerated passage, vacuum circular orbit, guide magnetic gap, deviation coil, pole-face two, shrinking coil, guide magnet two, lower yoke, accelerator magnet meets the requirement of isochronism and axial focusing in design, it ensure that the stabilization of cyclotron performance, substantially increase the capture control ability of particle, make charged particle controllable to the maximum extent, and pass through continuous line, it focuses on, particle is controlled, the final X ray for generating the higher energy with superpower penetration power, the detection range of equipment greatly improved.
Description
Technical field
The present invention relates to a kind of accelerator magnet, one kind specifically in field of non destructive testing has superpower capture grain
The accelerator magnet of sub- ability.
Background technology
In field of non destructive testing, accelerator is as a kind of radiographic source generating means in powerful non-destructive testing application
It is used widely, although linear accelerator can obtain higher energy, volume is big, is not easy to manufacture, and obtains high energy
The limit of amount is limited by volume and can not be broken through.And ringotron be of wide application it is general, but because of ringotron
Acceleration principle makes particle acceleration that cannot reach too fast, and energy limit is limited by very large that higher energy can not be obtained
Amount, detection range are limited by very large, and can only detect limited detection range, because accelerating its volume of the influence of radius of gyration
It is excessively huge, it operates inconvenient, and fettered by workpiece sensing space, detection efficiency is low.In addition, due to
Electronics it is controlled can force difference, the defects of very strong collateral radiation can be generated when accelerating to too high energy, so as to fetter annular acceleration
Device is further applied.As accelerator core component, accelerator magnet performance directly determines the energy of accelerator.Magnet pair
The capture control ability of particle directly determines the performance of ringotron, and the magnetic technique of existing ringotron catches particle
It is poor to obtain control ability, so as to directly result in ringotron overall performance defect, further application development can not be obtained.
Invention content
The it is proposed of the present invention in view of the above problems, and develop a kind of accelerator magnet with superpower trapped particle ability.
The technological means of the present invention is as follows：The accelerator magnet with superpower trapped particle ability includes：Upper yoke, master
Driving coil, guiding magnet one, pole-face one, electronics accelerated passage, vacuum circular orbit, guiding magnetic gap, deviation coil, pole-face
2nd, shrinking coil, guiding magnet two, lower yoke, center bolt component, wherein upper yoke and guiding magnet one and lower yoke and guiding magnetic
Iron two is fixed on by stainless steel center bolt component on accelerator housing together, is set among guiding magnet one and guiding magnet two
There is the guiding magnetic gap for connecting upper and lower two guiding magnetic pole, guiding magnetic gap will guide magnet to be divided into two parts up and down, and guiding magnetic gap is put
In two guide magnet between and be secured to, while two pole-faces for guiding magnet detachs, by guiding magnet pole-face and
Upper yoke, lower yoke constitute one it is limitary and can accelerated particle channel, vacuum circular orbit is placed in one.Main driving coil twines
The outside of guiding magnet is wound on, shrinking coil and deviation coil are tightly attached to upper and lower two guiding magnet one and guiding magnet respectively
Two pole-face, shrinking coil are close to the pole-face of guiding magnet, this two parts coil is close together, coupled in series.
The accelerator magnet is compact structure, upper and lower this two groups full symmetric guiding magnet, with opposite pole
Property, the upper and lower grade of magnetic circuit is formed, the pole-face diameter of magnet is guided to be not more than 170mm.
The upper yoke and lower yoke are by high full magnetic flow density, the magnetic material such as silicon steel material or amorphous of high magnetic permeability
Alloy material forms.
The guiding magnet one and the high-magnetodensity material that magnet two is guided to reach 2000T using flux density.
The guiding magnetic gap is a mixing magnetic gap being made of a variety of materials, and this mixing magnetic gap is by air, magnetic conduction material
Material or non-magnet material are formed.The width of guiding magnetic gap is the accumulative width of one or more mixing magnetic gaps, and accumulative width is less than
50mm。
The vacuum circular orbit is a ring pipe, and the material of this pipe is low-temperature expansion glass either inner surface additional
The ceramics that resistance value is 100 to 1000 Ω/cm2 insulating coatings.
The number of turn of the deviation coil is 2-5 times of the shrinking coil number of turn.
By adopting the above-described technical solution, the accelerator magnet in the present invention is compactedness structure, reduce for accelerator
Volume provides guarantee.Meanwhile the accelerator magnet in the present invention meets the requirement of isochronism and axial focusing in design, protects
The stabilization of cyclotron performance has been demonstrate,proved, the capture control ability of particle has been substantially increased, makes charged particle can to the maximum extent
Control, and by continuous line, focusing, particle is controlled, the final X for generating the higher energy with superpower penetration power is penetrated
The detection range of equipment greatly improved in line.Meanwhile the defects of collateral radiation is substantially reduced again to effective control of particle,
Artificial detection is facilitated to operate, improves detection production efficiency, suitable for being widely popularized.
Description of the drawings
Fig. 1 is the front view of the present invention
Fig. 2 is the vertical view of Fig. 1
Fig. 3 is cyclotron magnetic circuit figure in the present invention
In figure：1st, upper yoke, 2, main driving coil, 3, guiding magnet one, 4, pole-face one, 5, can accelerated particle channel, 6, vacuum ring
Shape track, 7, guiding magnetic gap, 8, deviation coil, 9, pole-face two, 10, shrinking coil, 11, guiding magnet two, 12, lower yoke,
13 center bolt components.
Specific embodiment
The structure composition and Method And Principle of the present invention is described with reference to the drawings.
A kind of accelerator magnet with superpower trapped particle ability, as shown in Figs. 1-2, described has superpower capture grain
The accelerator magnet of sub- ability includes:It is upper yoke 1, main driving coil 2, guiding magnet 1, pole-face 1, electronics accelerated passage 5, true
Empty circular orbit 6, guiding magnetic gap 7, deviation coil 8, pole-face 29, shrinking coil 10, guiding magnet 2 11, lower yoke 12, center spiral shell
Bar assembly 13, wherein upper yoke 1 pass through stainless steel center bolt together with guiding magnet 1 and lower yoke 12 with guiding magnet 2 11
Component 13 is fixed on accelerator housing, is equipped among guiding magnet 1 and guiding magnet 2 11 and is connected upper and lower two guiding magnetic
The guiding magnetic gap 7 of pole, guiding magnetic gap 7 will guide magnet to be divided into two parts up and down, and guiding magnetic gap is placed between two guiding magnet
And be secured to, while two pole-faces for guiding magnet are detached, constitute one by the pole-face and upper yoke, lower yoke of guiding magnet
It is limitary and can accelerated particle channel, vacuum circular orbit 6 is placed in one.Main driving coil 2 is wrapped in the outer of guiding magnet
Portion, shrinking coil 10 and deviation coil 8 are tightly attached to upper and lower two guiding magnet 1 and guide the pole-face of magnet 2 11 respectively, receive
Diminishing line circle 10 is close to the pole-face of guiding magnet, this two parts coil is close together, coupled in series.
The accelerator magnet is compact structure, upper and lower this two groups full symmetric guiding magnet, with opposite pole
Property, the upper and lower grade of magnetic circuit is formed, the pole-face diameter of magnet is guided to be not more than 170mm.
The upper yoke 1 and lower yoke 12 by high full magnetic flow density, high magnetic permeability magnetic material such as silicon steel material or
Amorphous alloy material forms.
The guiding magnet 1 and the high-magnetodensity material that magnet 2 11 is guided to reach 2000T using flux density.
The guiding magnetic gap is a mixing magnetic gap being made of a variety of materials, and this mixing magnetic gap is by air, magnetic conduction material
Material or non-magnet material are formed.The width of guiding magnetic gap is the accumulative width of one or more mixing magnetic gaps, and accumulative width is less than
50mm。
The vacuum circular orbit 6 is a ring pipe, and the material of this pipe is low-temperature expansion glass either inner surface
Attachment resistance value is the ceramics of 100 to 1000 Ω/cm2 insulating coatings.
The number of turn of the deviation coil is 2-5 times of the shrinking coil number of turn.
By pole-face 1, pole-face 29 and upper yoke 1, lower yoke 12 constitute one it is limitary and can accelerated particle channel 5, surely
Determine equilibrium,transient racetrack with particle focused condition to be just present in the track limited range.Particle acceleration orbit diameter
It is 72mm-180mm.
As shown in Figure 3, accelerator magnet magnetic circuit includes：Upper yoke 1, lower yoke 12 and 2 11 groups guiding magnet 1, guiding of magnet
Into a magnetic circuit；Upper yoke 1, lower yoke 12 and guiding magnet 1, guiding magnet 2 11 and the guiding magnetic gap 7 of centre form another
Magnetic circuit.
The controlled principle of particle-capture of the present invention：Circuit provides voltage pulse for main driving coil and orbits controlling coil.
In the beginning in each period, a high-voltage pulse is added in injector, and the particle in injector is sent into accelerated passage.Particle
Before accelerated, with correct time, energy and angle by between two annular pole faces of injection, particle is captured for they.Particle
After captured, usually in 1 microsecond or in the longer time, the particle in accelerated passage obtains the speed generated after energy and guiding magnetic
The magnetic flux of field matches.Because main driving coil and orbits controlling coil independently drive, when magnetic field is guided to increase, pass through
The magnetic flux of orbits controlling coil is adjusted, particle as much as possible is made to be accelerated after being captured.Meanwhile because in orbits controlling coil
Shrinking coil and offset coil can independently drive, be injected on acceleration orbit, and particle as much as possible is made to exist for particle
It is captured in the optimal time.
Working theory and processing step：First guiding magnet has first pole-face, and second guiding magnet has second
Pole-face.First and second guiding magnet are separated by the guiding magnetic gap between two pole-faces.Guiding magnetic gap in center
It is proximity relations with the first and second guiding magnet.This guiding magnetic gap width is less than the axial maximum width of electron orbit.Note
Enter the mode of electronics：When the first magnet has the first polarity chron and is injected electrons into electron channel in ceiling voltage
In track, and compress injection electronics and reach on ideal track.The step of magnetic flux generates one：Guiding is passed through from the pole-face of the first magnet
Magnet and electron track radius reach the pole-face of the second magnet with opposite polarity, and the yoke through surrounding returns.Magnetic flux produces
Raw step two：Second magnetic flux of the second pole-face, which passes through, guides magnet, electron channel to return to the first pole-face of period 1, from
And after iron core a cycle, the second magnetic flux is passed through and is connected inside guiding magnet with the first magnetic flux, reaches magnetic field requirements, real
The effect now accelerated for electronics.After electron energy reaches setting value, deviation magnetic flux work, the electron orbit after expansion makes electronics
It hits target and generates x-ray.
Claims (7)
1. a kind of accelerator magnet with superpower trapped particle ability, it is characterised in that：Including upper yoke, main driving coil, draw
Magnetic conduction iron one, pole-face one, electronics accelerated passage, vacuum circular orbit, guiding magnetic gap, deviation coil, pole-face two, shrinking coil,
Magnet two, lower yoke, center bolt component are guided, wherein upper yoke passes through together with guiding magnet one and lower yoke with guiding magnet two
Stainless steel center bolt component is fixed on accelerator housing, and it is upper and lower to be equipped with connection among guiding magnet one and guiding magnet two
The guiding magnetic gap of two guiding magnetic poles, guiding magnetic gap will guide magnet to be divided into two parts up and down, and guiding magnetic gap is placed in two guiding
It between magnet and is secured to, while two pole-faces for guiding magnet is detached, by pole-face and upper yoke, the lower yoke group of guiding magnet
Into one it is limitary and can accelerated particle channel, vacuum circular orbit is placed in one, and main driving coil is wrapped in guiding magnetic
The outside of iron, shrinking coil and deviation coil are tightly attached to upper and lower two guiding magnet one and guide the pole-face of magnet two respectively, receive
Diminishing line circle is close to the pole-face of guiding magnet, this two parts coil is close together, coupled in series.
2. a kind of accelerator magnet with superpower trapped particle ability according to claim 1, it is characterised in that：It is described
Accelerator magnet is compact structure, and upper and lower this two groups full symmetric guiding magnet with opposite polarity, form magnetic circuit
Upper and lower grade guides the pole-face diameter of magnet to be not more than 170mm.
3. a kind of accelerator magnet with superpower trapped particle ability according to claim 1, it is characterised in that：It is described
Upper yoke and lower yoke are by the full magnetic flow density of height, the magnetic material such as silicon steel material of high magnetic permeability or amorphous alloy material group
Into.
4. a kind of accelerator magnet with superpower trapped particle ability according to claim 1, it is characterised in that：It is described
Guiding magnet one and the high-magnetodensity material that magnet two is guided to reach 2000T using flux density.
5. a kind of accelerator magnet with superpower trapped particle ability according to claim 1, it is characterised in that：It is described
It is a mixing magnetic gap being made of a variety of materials to guide magnetic gap, and this mixing magnetic gap is by air, permeability magnetic material or non-magnetic material
Material is formed, and the width for guiding magnetic gap is the accumulative width of one or more mixing magnetic gaps, adds up width and is less than 50mm.
6. a kind of accelerator magnet with superpower trapped particle ability according to claim 1, it is characterised in that：It is described
Vacuum circular orbit is a ring pipe, and it is 100 that the material of this pipe, which is low-temperature expansion glass either inner surface attachment resistance value,
To the ceramics of 1000 Ω/cm2 insulating coatings.
7. a kind of accelerator magnet with superpower trapped particle ability according to claim 1, it is characterised in that：It is described
The number of turn of deviation coil is 2-5 times of the shrinking coil number of turn.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810081766.5A CN108260272A (en) | 2018-01-29 | 2018-01-29 | A kind of accelerator magnet with superpower trapped particle ability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081766.5A CN108260272A (en) | 2018-01-29 | 2018-01-29 | A kind of accelerator magnet with superpower trapped particle ability |
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| CN108260272A true CN108260272A (en) | 2018-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111741590A (en) * | 2020-07-21 | 2020-10-02 | 中国原子能科学研究院 | Deflection magnet and deflection device with same |
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| JP2000036411A (en) * | 1997-05-09 | 2000-02-02 | Hitachi Ltd | Electromagnet and accelerator, and accelerator system |
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| US20100150312A1 (en) * | 2008-12-14 | 2010-06-17 | Schlumberger Technology Corporation | Internal injection betatron |
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| US20160316552A1 (en) * | 2015-04-22 | 2016-10-27 | Sumitomo Heavy Industries, Ltd. | Cyclotron and superconductive electromagnet |
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2018
- 2018-01-29 CN CN201810081766.5A patent/CN108260272A/en active Pending
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|---|---|---|---|---|
| JP2000036411A (en) * | 1997-05-09 | 2000-02-02 | Hitachi Ltd | Electromagnet and accelerator, and accelerator system |
| CN101005250A (en) * | 2006-09-01 | 2007-07-25 | 樊后鹏 | Alternative relay continuous circulation movement motor of permanent electromagnetic field electromagnetic repulsive force periphery |
| US20090153279A1 (en) * | 2007-12-14 | 2009-06-18 | Schlumberger Technology Corporation | Single drive betatron |
| US20100150312A1 (en) * | 2008-12-14 | 2010-06-17 | Schlumberger Technology Corporation | Internal injection betatron |
| CN103327725A (en) * | 2013-07-12 | 2013-09-25 | 武汉当代核技术有限公司 | PET/SPECT/BNCT (positron emission tomography/single photon emission computed tomography/boron neutron capture therapy) three-purpose small medical cyclotron |
| US20160316552A1 (en) * | 2015-04-22 | 2016-10-27 | Sumitomo Heavy Industries, Ltd. | Cyclotron and superconductive electromagnet |
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| CN111741590A (en) * | 2020-07-21 | 2020-10-02 | 中国原子能科学研究院 | Deflection magnet and deflection device with same |
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Application publication date: 20180706 |