CN102802338B - Particle accelerator - Google Patents
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- CN102802338B CN102802338B CN201210161704.8A CN201210161704A CN102802338B CN 102802338 B CN102802338 B CN 102802338B CN 201210161704 A CN201210161704 A CN 201210161704A CN 102802338 B CN102802338 B CN 102802338B
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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
- H05H13/10—Accelerators comprising one or more linear accelerating sections and bending magnets or the like to return the charged particles in a trajectory parallel to the first accelerating section, e.g. microtrons or rhodotrons
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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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- 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
- H05H7/001—Arrangements for beam delivery or irradiation
- H05H2007/004—Arrangements for beam delivery or irradiation for modifying beam energy, e.g. spread out Bragg peak devices
-
- 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
- H05H2277/00—Applications of particle accelerators
- H05H2277/10—Medical devices
- H05H2277/11—Radiotherapy
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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Particle Accelerators (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
The present invention relates to a kind of particle accelerator（2）, the electron accelerator especially used in medical technology（2）, for producing the particle beams being made up of charged particle（16）, the particle accelerator is designed as two-stage, including the first accelerating sections（10）, the second accelerating sections（14）With in described two accelerating sections（10、14）Between be used to reduce the wave filter of the particle energy dispersion of distribution（12a、12b、12c）.
Description
Technical field
The present invention relates to a kind of particle accelerator, the electron accelerator especially used in medical technology, for producing by band
The molecular particle beams of electrochondria.
Background technology
Particle accelerator is used to accelerate charged particle by electromagnetic field.It is derived from the particle of kinetic energy, the grain of kinetic energy
Son can be used in different application targets.
There is special meaning using high energy charged particles in medical technology, they are controlled especially with radiation there
Treat.Do not use accelerated particle directly in many cases, but for producing High energy electromagnetic beam, High energy electromagnetic Shu Youqi is used in
Imaging inspection method or for treating.
When the kinetic energy to be reached is about 1MeV and Geng Gao, in order to accelerate the charged particle from a source, typically make
With the standing wave accelerator or traveling-wave accelerator being made up of cavity resonator, there is cavity resonator to resonate frequently for coupling input wherein
The electromagnetic beam of rate.By making full use of corresponding resonator, very big tens million of V/m can be produced with fewer Technical investment
Electric-field intensity.Then the acceleration of charged particle is realized in cavity resonator by this electric field.
In addition, energy filter element is typically the part of particle accelerator.Charged particle in terms of its kinetic energy and by
This is also not intended to different in terms of its effect when with matter interaction.Realized and divided by using energy filter element
From particle of they all kinetic energy outside defined energy range.Produce in this way in first approximation it is single can and because
And particularly advantageous beam.But lose in this case separation seem regard the particle of waste product as, this for efficiency simultaneously
It is unfavorable that thus effect of particle accelerator is served.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of improved particle accelerator.
By above-mentioned technical problem of the present invention by a kind of particle accelerator, the electron accelerator especially used in medical technology
It is addressed, the particle accelerator is used to produce the particle beams being made up of charged particle, and the particle accelerator is designed as two
Level, including the first accelerating sections, the second accelerating sections and between described two accelerating sections be used for reduce the particle energy dispersion of distribution
Wave filter.
That is, by the basic thought of the present invention, particle accelerator is divided into two-stage, including a preaceleration level and one
Further accelerate level, wherein between two-stage and thus separate particles are carried out in particularly advantageous energy range, to limit particle
Energy distribution width.The energy range herein can with unrestricted choice and with the structural condition best match of particle accelerator,
To be conducive to reaching effectiveness as high as possible.Therefore efficiency is relevant no longer with realizing the particle energy distribution after total accelerate.Except this
Outside, the separation of particle realized at one measure after total accelerate numerically than being carried out in relatively low energy range.Thus
Less power can be applied for the separation described in implementing, so that the Technical investment needed for being reduced to this.Because charged particle is separated
When typically via late film（Blende）Filtering, thus formed herein it is so-called sew beam, that is, fail the beam that utilizes, go out
The reason for from security, be the screening arrangement that it sets such as lead.If being engaged in energy selectivity when particle energy is relatively low
Ground filter particle, then can also reduce just it is this sew beam so that less screening arrangement just sufficiently achieves same protection
Effect.
Herein, the particle beams is not interpreted as one kind forcibly with time constant and uniform particle flux, and only answers table
Up to some powered particles, that is, also refer to a kind of pulsed grain purposefully deflected towards predetermined direction with regulation kinetic energy
Beamlet.
Particle accelerator is used in the first purpose that foreword is enumerated, but is preferably used in the field of medical technology.Press
One design for being especially consistent with purpose, particle accelerator is designed as electron accelerator.In this case, as particle source
Electron source, such as hot emitter, before the first accelerating sections.
A kind of preferred scheme of particle accelerator is, in order to accelerate charged particle, and cavity is used on one of accelerating sections
Resonator.This scheme is particularly suitable for use in as charged particle regulation maximum kinetic energy approximately more than 1MeV.
By a kind of appropriate extension design, the acceleration of charged particle is by standing wave resonator and outstanding on one of accelerating sections
It is by the also referred to as die cavity coupled by someCavity resonator constitute standing wave resonator carry out.By this
A little cavity resonators, in the given amplitude of the electromagnetic beam of input, it may be determined that the length of accelerating sections, and thus also can determine that
The maximum kinetic energy of particle.
Especially it is appropriate that the first accelerating sections is designed as, make what is be distributed during work in the first accelerating sections end particle energy
Maximum is in 0.5 between 6MeV, being preferably between 0.8 and 1.2MeV.It has been demonstrated that just
It is that this scope has with high effect and thus that expeditiously to work be particularly advantageous for particle accelerator.Preferably, first
Accelerating sections is typically for being designed with the work of defined fixed maximum values.
By another preferred extension design, the second accelerating sections is designed as, in the second accelerating sections end particle when making work
The maximum of Energy distribution is between 3 and 50MeV, and is preferably between 3 and 25MeV.
The resulting particle beams is particluarly suitable in medical technology using or is used in material nondestructive testing.
In addition it is appropriate that magnet arrangement can be used in wave filter.Filter herein by least one energy selectivity
Dipole moment is carried out, and deflection is used as in local generation and the uniform magnetic field that is similar to of particle beams direction vertical orientation by dipole moment
.Corresponding to this, charged particle implements circus movement in this regional area, wherein the radius and the arteries and veins of particle of each particle trajectory
It is washed into direct ratio.The extension that the particle beams depends on energy is achieved in, as long as so in order to select particle at the end of this regional area
It is just enough that portion sets simple late film.In addition in order to manipulate particle preferably by bigger magnetic torque.For example for the particle beams
Focus on typically with quadrupole moment, reduce the extension of the particle beams after late film by it.Because in two-stage type particle accelerator
The separation of charged particle than implementing in relatively low energy range, for being extended as defined in the particle beams one it is matching
Weaker deflecting field just it is much of that, so produce deflecting field magnet can be designed to it is simple and compact.
By a kind of favourable extension design code, permanent magnet can be used as magnet.Thus, especially with using electromagnet
Compare, it is possible to reduce the operating cost in terms of economy and energy.In addition, the cooling that permanent magnet need not be added.By
First accelerating sections end is adjusted to defined energy value, can use the permanent magnet harmonious with this defined energy value.
In addition also it is appropriate that in order to input electromagnetic beam, especially frequency 0.4 to the microbeam between 12GHz, in cavity
Public beam source is provided with resonator.Due to eliminating the additional beam source of multi-stag particle accelerator, it significantly limit
For realize the structure and compared with single-stage solution moreization expense.
By another preferred design, at least one of accelerating sections is connected as with beam source, makes the electromagnetism of the input accelerating sections
Beam amplitude can be adjusted by operating parts.In the case of defined design and with multiple cavity resonators, particle energy distribution
Maximum can be changed by amplitude.A kind of variable particle accelerator is realized in this way, and wherein particle energy is distributed
Maximum is adjusted by particle accelerator operator according to specific application target.
By a kind of extension design being consistent with purpose, the electromagnetic beam produced by beam source is by distributor or directional filter
（Weiche）It is divided into two parts for two accelerating sections, wherein providing that the amplitude for the part of the second accelerating sections can be by operation
Part is adjusted.There is provided by a kind of this adjustability of embodiment by variable resistor, weakening regulation by it is used for the second accelerating sections
Part amplitude.At the same time for the first accelerating sections part preferably with particle energy be distributed maximum independently
Remain constant.Correspondingly, according to the filtering of energy all the time in same energy range carry out, be this thus can be advance
The particularly advantageous value of regulation.In addition, wave filter need not match with particle maximum in this case, so wave filter can be borrowed
Permanent magnet is helped to realize.
In addition a kind of particle accelerator is also preferred, wherein, in order to provide that the electromagnetic beam two of accelerating sections to be inputted is shaken
At least one in width, sets the directional filter for preferably playing interference device, the electromagnetic beam is in this directional filter
Pass through structural or crushing interference decay.The purpose to be reached herein is that particle accelerator can be by some as single
Component can provide the component used and constitute, therefore need not specially be produced for this application target.Preferably herein changeably
Predetermined phase relation and amplitude or amplitude ratio are this by active high frequency element and particular by the microwave structure using ferrite as base
Part, their characteristic can be adjusted by operator by steerable magnetic field.
It is also advantageous that, for two amplitudes of the electromagnetic beam that provides accelerating sections to be inputted, provided with variable high frequency division
Orchestration, it preferably includes waveguide E-H branches, also referred to as " Magisches T ", and high-frequency tuner.High-frequency tuner is at this
In be provided preferably with electronic-controlled installation, so operator can provide each acceleration independently of one another by adjusting high-frequency tuner
The amplitude of section.
In addition, especially it is appropriate that beam source, distributor and the first accelerating sections are mutually connected with guiding beam by circulator
Connect.Make the different part decouplings of electromagnetic beam by circulator, and rule are input to from directional filter in the way of a kind of system
In fixed waveguide, each component of particle accelerator is interconnected with guiding beam by waveguide.
To avoid undesirable feedback, electromagnetic beam do not input it is in accelerating sections and thus to import auxiliary negative the part reflected
In carrying.It is that each cavity resonator sets an assistant load herein especially for two-stage type particle accelerator.
Finally, advantageously using additional phase shifter, can be especially engaged in by it by operator two accelerating sections it
Between tuning.Because the amplitude of electromagnetic beam in input accelerating sections preferably can be provided changeably, thus particle accelerating sections it
Between propagation time be also variable.But the fortune that the electromagnetic field relevant with the time must be with charged particle inside cavity resonator
It is dynamic to coordinate mutually, it is therefore necessary to adjustment phase place.Distributor and second are preferably positioned as herein for this applicable phase shifter
Between accelerating sections.
Brief description of the drawings
Below the present invention is described in detail by schematic diagram.Wherein：
Fig. 1 represents the square line map of two-stage type particle accelerator.
Embodiment
The particle accelerator 2 for being illustrated in Figure 1 and showing schematically herein as citing, including accelerator unit 4
With the feeding unit 6 for controlling and supplying accelerator unit 2.
Accelerator unit 2 is made up of electron source 8, the first accelerating sections 10, energy filter and the second accelerating sections 14.The two
The neighbouring and parallel to each other laying of accelerating sections 10,14, thus only needs to ratio to constitute the accelerator unit 4 preferably substantially taken the shape of the letter U
Less space.
The energy filter between two accelerating sections 10,14 is positioned at, in the present embodiment including 180 ° of deflection magnetic
Iron.Itself is made up of multiple permanent magnets, by permanent magnet arrangement into so that as magnetic torque with two idols during first approximation
Polar moment 12a, 12c and a quadrupole moment 12b are acted on independently of one another in space.By dipole moment 12a, 12b, by the conduct of electron source 8
The electronics that electron beam injects in the first accelerating sections 10 and discharged from the side of the first accelerating sections 10, is forced along circular trace and thus court
The direction deflection of second accelerating sections 14.The radius of each electron trajectory depend on respective electronics pulse, and thus have with its kinetic energy
Close, therefore electron beam is mainly in the first dipole moment 12a region transverse to beam direction fanning.It is even first as supplement
One is positioned by reality in the way of not represented in detail in scheming between polar moment 12a or the first dipole moment and quadrupole moment 12b or quadrupole moment
Body late film made of copper, thus the electronics being only limitted in the energy range that is determined by energy filter architectural characteristic enter second plus
In fast section 14.
Preferably include 2 to 30 cavity resonator Z standing wave accelerators that are cellular and being mutually coupled rise accelerating sections 10,
14 effect.In the present embodiment, two cavity resonator Z are set for the citing of the first accelerating sections 10, and accelerated for second
The citing of section 14 sets four cavity resonator Z.It is designed as each in the part accelerator of standing wave accelerator, passes through waveguide during work
The microbeam input cavity resonator Z that H will have common resonant frequency, the microbeam between two adjacent cavity resonator Z
Transmission or further guiding, ensure by the so-called coupling born of the same parents not described herein.By what is constituted in cavity resonator Z
Electric field, the electronics of accelerated electron beam.Electron beam through so manipulating adds eventually as the particle beams 16 for having regulation kinetic energy second
The end of fast section 14 is discharged from accelerator unit 4, then can be supplied to defined application target.For example provide in medical domain at present
It is used in treatment or diagnostic device.
In order to which by microbeam supply or cavity resonator of feeding, feeding unit 6 has 18,4 circulators 20 of microwave source to guide
It is attached thereto beam.The microbeam produced by microwave source 18 is further transmitted to its door by the door 1T1 of 4 circulators 20
2T2, connects variable high frequency distributor 22 herein.
Variable high frequency distributor 22 itself is made up of the waveguide E-H branches 24 including four arm A1 to A4, wherein favorably
In making reflection characteristic two arms A3, A4 as well as possible, transverse arm A3, A4 are claimed below, it is short-circuit with flat metallic plate in side.
So-called " the quick ferrite-tuned device of positioning in one of transverse arm A4（FAST FERRITE TUNER：FFT）”26.Accordingly
" quick ferrite-tuned device " 26 is used as electronically controlled, therefore the reflection phase shifter that can be also controlled by operating parts, and tool
Have by ferrite（FERRITE）The inductance loop of the waveguiding structure composition of filling.
Thus, impedance mismatching on the one hand can be purposefully carried out, therefore makes to be oriented to variable high frequency distributor 22 by door 2T2
Microbeam be cracked into reflecting part and emitting portion, and on the other hand realize phase by " quick ferrite-tuned device " 26
Move, therefore the amplitude of the emitting portion can be manipulated.Two identical parts are now cracked into the import A1 parts launched,
They are reversely with each other to travel in transverse arm A3, A4 and in their end reflections.Therefore the two parts are horizontal by the two
It is superimposed in the waveguide H that arm A3, A4 are constituted, the phase relation between two parts passes through " quick ferrite-tuned device " 26 herein
Phase shift function regulation.It can change the two fractional amplitude sums in this way, and by arm 2A2 from variable high frequency
The coupling output of distributor 22.Second this part for feeding part is exactly hereinafter referred to as to provide to be used to supply the second accelerating sections 14.
The part reflected at import A1 is then used to supply the first accelerating sections 10 and correspondingly referred to as first fed part.
First part of feeding further is transmitted to a 3T3 by 4 circulators 20 by door 2T2, and thus be further transmitted to
First accelerating sections 10.First feeds partly is cracked into two parts in the first accelerating sections 10.A part the first accelerating sections 10 of input, with
And interface reflection of the part between waveguide H and the first accelerating sections 10, connect 4 knocker rows above-mentioned waveguide H guidings beam
The accelerating sections 10 of device 20 and first.First feeds part in the part of interface reflection, to avoid undesirable feedback, 4
Door circulator 20 is further transmitted to a 4T4 from door 3T3, and inputs assistant load 28 there.It is preferably right by one kind herein
The Pin that the sensitive material of resistive loss is made plays assistant load 28, and it stretches into waveguide H and absorbs microwave there
Beam.Microbeam is converted into heat in the graphite rod, is finally discharged by water cooling.
Second feeds partly further is transmitted to its 6T6 by 3 circulators 30 from its 5T5, and same in acceleration
Interface between section 14 and the waveguide H for playing lead, is cracked into importation and reflecting part.Similarly, it is the second feedback
Reflecting part to part sets assistant load 28, and reflecting part inputs it by 3 circulators 30 and its door 6T6 and door 7T7
In.
In addition, in order that the electric field and the motion state of electron beam that are produced in cavity resonator match, and
It is harmonious especially for the propagation time of electronics between two accelerating sections 10,14, provided with phase shifter 32.In the present embodiment
It is positioned between variable high frequency distributor 22 and 3 circulators 30.
The present invention is not limited by embodiment described above.Exactly it can also export the present invention's by professional
Other schemes, should not depart from the technical theme of the present invention.In addition especially all various features being described in conjunction with the embodiments also may be used
To be combined with each other by other means, also without departing from the technical theme of the present invention.
Claims (21)
1. a kind of particle accelerator (2), for producing the particle beams being made up of charged particle (16), it is characterized in that：The particle
Accelerator design is two-stage, including the first accelerating sections (10), the second accelerating sections (14) and in described two accelerating sections (10,14)
Between be used to reduce the wave filter (12a, 12b, 12c) of the particle energy dispersion of distribution, wherein, wave filter (12a, 12b, 12c) is
Separating particles and with late film.
2. particle accelerator (2) according to claim 1, it is characterized in that, during the particle accelerator (2) is medical technology
The electron accelerator (2) used.
3. particle accelerator (2) according to claim 1, it is characterized in that, permanent magnet assembly is used as wave filter, so that
The filtering of energy selectivity is realized by least one dipole moment, is produced by dipole moment near with particle beams direction vertical orientation
Uniform magnetic field is similar to as deflecting field, so that charged particle implements circus movement in this regional area, wherein, each particle rail
The radius of mark is directly proportional to the pulse of particle, is achieved in the extension that the particle beams depends on energy, so in order to select particle only
Simple late film is set in the end of this regional area just enough, wherein, in order to which particle beam utilizes quadrupole moment, by it
Reduce the extension of the particle beams after late film.
4. according to the particle accelerator (2) described in claim 1, it is characterized in that, in order to accelerate charged particle, in the accelerating sections
One of (10,14) are provided with cavity resonator (Z).
5. according to the particle accelerator (2) described in claim 1 or 4, it is characterized in that, in order to accelerate charged particle, add described
One of fast section (10,14) is provided with standing wave resonator (10,14).
6. according to the particle accelerator (2) described in claim 5, it is characterized in that, the standing wave resonator (10,14) is by what is coupled
Cavity resonator (Z) is constituted.
7. according to the particle accelerator (2) described in claim 1 or 4, it is characterized in that, first accelerating sections (10) is designed as,
The maximum being distributed in first accelerating sections (10) end particle energy is set to be between 0.8 and 1.2MeV, it is described
Second accelerating sections (14) is designed as, and the maximum being distributed in second accelerating sections (14) end particle energy is in 3 and 50MeV
Between.
8. according to the particle accelerator (2) described in one of Claims 1-4, it is characterized in that, the wave filter (12a, 12b,
12c) include the device of magnet (12a, 12b, 12c).
9. according to the particle accelerator (2) described in claim 8, it is characterized in that, used as magnet (12a, 12b, 12c) permanent
Magnet (12a, 12b, 12c).
10. according to the particle accelerator (2) described in claim 4, it is characterized in that, for the input electricity in cavity resonator (Z)
Flux, provided with public beam source (18).
11. according to the particle accelerator (2) described in claim 10, it is characterized in that, the electromagnetic beam is microbeam.
12. according to the particle accelerator (2) described in claim 10, it is characterized in that, one of at least described accelerating sections (10,14) with
The beam source (18) is connected as, and makes the amplitude of the electromagnetic beam in the input accelerating sections (10,14) and can be adjusted by operating parts (26)
It is whole.
13. according to the particle accelerator (2) described in claim 10 or 12, it is characterized in that, produced by the beam source (18)
Electromagnetic beam is that described two accelerating sections (10,14) are divided into two parts by distributor (22)；And, provide to be used for the second accelerating sections
(14) amplitude of part can be adjusted by operating parts (26).
14. according to the particle accelerator (2) described in claim 12, it is characterized in that, in order to provide to input the accelerating sections
In two amplitudes of the electromagnetic beam in (10,14) at least one and provided with interference device, the electromagnetic beam is in this interference device
Pass through structural or crushing interference decay.
15. according to the particle accelerator (2) described in claim 10 or 12, it is characterized in that, in order to provide to input the acceleration
Two amplitudes of the electromagnetic beam in section (10,14), provided with variable high frequency distributor (22).
16. according to the particle accelerator (2) described in claim 15, it is characterized in that, variable high frequency distributor (22) bag
Waveguide E-H branches (24) and at least one high-frequency tuner (26) are included as operating parts (26).
17. according to the particle accelerator (2) described in claim 12, it is characterized in that, beam source (18), distributor (22) and first
Accelerating sections (10) is interconnected by circulator (20).
18. according to the particle accelerator (2) described in claim 4, it is characterized in that, in order to avoid undesirable feedback, electromagnetic beam
Do not input it is in accelerating sections (10,14) and thus the part reflected import in assistant load (28).
19. according to the particle accelerator (2) described in one of Claims 1-4, it is characterized in that, accelerate to tune the particle
Device is provided with additional phase shifter (32).
20. a kind of particle accelerator (2), for producing the particle beams being made up of charged particle (16), it is characterized in that：The particle
Accelerator design is two-stage, including the first accelerating sections (10), the second accelerating sections (14) and in described two accelerating sections (10,14)
Between be used to reduce the wave filter (12a, 12b, 12c) of the particle energy dispersion of distribution, wherein, wave filter (12a, 12b, 12c) is
Separating particles and with late film,
It is characterized in that, permanent magnet assembly is used as wave filter, so as to realize energy selectivity by least one dipole moment
Filtering, is produced by dipole moment and deflecting field is used as in the uniform magnetic field that is similar to of particle beams direction vertical orientation, so that powered
Particle implements circus movement in this regional area, wherein, the radius of each particle trajectory is directly proportional to the pulse of particle, thus real
The existing particle beams depends on the extension of energy, as long as so in order to select particle to set simple late film in the end of this regional area just
It is enough, wherein, in order to which particle beam utilizes quadrupole moment, reduce the extension of the particle beams after late film by it,
Wherein, first accelerating sections (10) is designed as, and makes the maximum being distributed in first accelerating sections (10) end particle energy
Value is between 0.8 and 1.2MeV, and second accelerating sections (14) is designed as, and makes to hold in second accelerating sections (14)
The maximum of portion's particle energy distribution is between 3 and 50MeV.
21. particle accelerator (2) according to claim 20, it is characterized in that, the particle accelerator (2) is medical technology
The middle electron accelerator (2) used.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011076262.0 | 2011-05-23 | ||
| DE102011076262A DE102011076262A1 (en) | 2011-05-23 | 2011-05-23 | Accelerator e.g. electron accelerator for medical application e.g. radiotherapy application, has filter provided between two stages having acceleration zones, for reducing width of energy distribution of particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102802338A CN102802338A (en) | 2012-11-28 |
| CN102802338B true CN102802338B (en) | 2017-09-22 |
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| CN201210161704.8A Active CN102802338B (en) | 2011-05-23 | 2012-05-23 | Particle accelerator |
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| DE (1) | DE102011076262A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103152972A (en) * | 2013-02-06 | 2013-06-12 | 江苏海明医疗器械有限公司 | Feedback type microwave system of medical linear accelerator |
| ITCO20130036A1 (en) * | 2013-08-22 | 2015-02-23 | Fond Per Adroterapia Oncologi Ca Tera | ¿ION ACCELERATOR SYSTEM FOR THE TREATMENT OF ATRIAL FIBRILLATION¿ |
| DE102014118224A1 (en) | 2014-12-09 | 2016-06-09 | AMPAS GmbH | Particle accelerator for producing a gebunchten particle beam |
| CN109792835B (en) * | 2016-10-06 | 2021-03-02 | 住友重机械工业株式会社 | Particle accelerator |
| RU2738954C1 (en) * | 2020-08-11 | 2020-12-21 | Федеральное государственное бюджетное учреждение "Петербургский институт ядерной физики им. Б.П. Константинова Национального исследовательского центра "Курчатовский институт" (НИЦ "Курчатовский институт" - ПИЯФ) | Method for simultaneous extraction of two proton beams from the cyclotron: basic and medical for ophthalmology |
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| US3011086A (en) * | 1957-11-29 | 1961-11-28 | Applied Radiation Corp | Means for selecting electron beam energy |
| GB978839A (en) * | 1962-07-26 | 1964-12-23 | Ass Elect Ind | Improvements in linear accelerators |
| CN2337742Y (en) * | 1998-07-30 | 1999-09-08 | 谢家麟 | Electronic straight line accelerator |
| CN1658733A (en) * | 2004-02-18 | 2005-08-24 | 谢家麟 | Klystron synchronous used as high-efficient accelerator of microwave source and electronic source |
| CN100589676C (en) * | 2005-12-31 | 2010-02-10 | 清华大学 | A kind of electron linear accelerator and using method thereof |
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| Publication number | Publication date |
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| DE102011076262A1 (en) | 2012-11-29 |
| CN102802338A (en) | 2012-11-28 |
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