JPH07211498A - Charged particle accelerator - Google Patents
Charged particle acceleratorInfo
- Publication number
- JPH07211498A JPH07211498A JP440194A JP440194A JPH07211498A JP H07211498 A JPH07211498 A JP H07211498A JP 440194 A JP440194 A JP 440194A JP 440194 A JP440194 A JP 440194A JP H07211498 A JPH07211498 A JP H07211498A
- Authority
- JP
- Japan
- Prior art keywords
- high frequency
- charged particle
- accelerating
- frequency power
- accelerator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Particle Accelerators (AREA)
Abstract
(57)【要約】
【構成】異なる結合定数を持つ複数の加速管１，サーキ
ュレータ２，無反射終端３，高周波切替装置４，クライ
ストロン５，高周波発振器６からなる。複数の加速管は
それぞれ定められた電流値に応じた結合定数を持つ高周
波入力部をもつ。
【効果】供給する高周波電力の無駄をなくし、更には、
高周波電源に余計な負荷をかけないため高周波電源の寿
命を長くすることが可能な加速装置が提供される。
(57) [Summary] [Structure] A plurality of accelerating tubes having different coupling constants 1, a circulator 2, a reflectionless termination 3, a high frequency switching device 4, a klystron 5, and a high frequency oscillator 6. Each of the plurality of accelerating tubes has a high-frequency input section having a coupling constant corresponding to a predetermined current value. [Effect] Eliminate the waste of high frequency power supply, and
Provided is an accelerator which can prolong the life of a high frequency power source without imposing an extra load on the high frequency power source.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、医療・工業用の可変な
出力電流値が必要な荷電粒子加速装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charged particle accelerator for medical and industrial applications which requires a variable output current value.
【０００２】[0002]
【従来の技術】従来の荷電粒子加速装置における加速管
の高周波導入部は、すべての加速管について一つのビー
ム電流値に応じた結合定数を持つようにその形状を決定
していた。この高周波導入部の結合定数はビーム負荷を
含めた加速管のインピーダンスと導波管のインピーダン
スとの整合を取るように決められる。従来例は、高エネ
ルギ物理学研究所で１９９０年に開催された高エネルギ
加速器セミナーのテキスト(ＯＨＯ−'９０）中の「加速
管」に記載されている。2. Description of the Related Art The high-frequency introduction section of an accelerating tube in a conventional charged particle accelerating device has its shape determined so that all accelerating tubes have a coupling constant corresponding to one beam current value. The coupling constant of the high-frequency introducing portion is determined so as to match the impedance of the accelerating tube including the beam load and the impedance of the waveguide. A conventional example is described in "Acceleration Tube" in the text (OHO-'90) of the High Energy Accelerator Seminar held in 1990 at the Institute for High Energy Physics.
【０００３】[0003]
【発明が解決しようとする課題】従来の荷電粒子加速装
置では加速に使われる電力の効率は定められたビーム電
流値で最も良い。しかし、電流値の異なるビームを加速
する場合には高周波導入窓で反射される電力量が増し、
電源で発生させた電力が無駄になると上に、高周波源の
劣化を招く可能性がある。In the conventional charged particle accelerator, the efficiency of the electric power used for acceleration is the best at a predetermined beam current value. However, when accelerating beams with different current values, the amount of power reflected by the high frequency introduction window increases,
When the electric power generated by the power source is wasted, it may cause deterioration of the high frequency source.
【０００４】本発明の目的は、一つの荷電粒子加速装置
で電流値の異なるビームを加速する際に、供給する高周
波電力の無駄をなくし、更には、高周波電源に余計な負
荷をかけない荷電粒子加速装置を提供することにある。It is an object of the present invention to eliminate waste of high frequency power to be supplied when accelerating beams having different current values with one charged particle accelerator, and further to prevent unnecessary load on the high frequency power source. It is to provide an accelerator.
【０００５】[0005]
【課題を解決するための手段】結合定数の異なる複数個
の加速管から構成し、加速する電流量に応じた結合定数
を持つ加速管のみを稼働する。[Means for Solving the Problems] A plurality of accelerating tubes having different coupling constants are used, and only the accelerating tube having a coupling constant corresponding to the amount of current to be accelerated is operated.
【０００６】[0006]
【作用】本発明の荷電粒子加速装置を用いれば、電流値
の異なるビームを加速する際に導波管と加速管との間で
常にインピーダンス整合が取れている状態にすることに
よって、供給する高周波電力の無駄をなくし、更には、
高周波電源に余計な負荷をかけないため高周波電源の寿
命を長くすることが出来る。When the charged particle accelerator of the present invention is used, when accelerating beams having different current values, the impedance matching between the waveguide and the accelerating tube is always maintained to supply high frequency Eliminate waste of power, and
The life of the high frequency power supply can be extended because no extra load is applied to the high frequency power supply.
【０００７】[0007]
【実施例】以下、本発明の実施例を図面を用いて説明す
る。図１は本発明の荷電粒子加速装置の一実施例の断面
図であり、結合定数の異なる二種類の加速管から構成し
た例である。本発明の加速装置は加速管１ａ，１ｂ，サ
ーキュレータ２，無反射終端３，高周波切替装置４，ク
ライストロン５，高周波発振器６からなる。二本の加速
管１ａ，１ｂは、それぞれ定められた電流値に応じた結
合定数を持つ高周波入力部有し、定められた二種類の電
流値の異なるビームを効率良く加速することができる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of an embodiment of the charged particle accelerator of the present invention, which is an example constituted by two types of acceleration tubes having different coupling constants. The accelerator of the present invention comprises accelerator tubes 1a and 1b, a circulator 2, a reflectionless termination 3, a high frequency switching device 4, a klystron 5 and a high frequency oscillator 6. Each of the two accelerating tubes 1a and 1b has a high-frequency input section having a coupling constant corresponding to a predetermined current value, and can efficiently accelerate two predetermined types of beams having different current values.
【０００８】[0008]
【発明の効果】本発明によれば、一つの荷電粒子加速装
置で電流値の異なるビームを加速する際に、導波管系と
加速管との間で常にインピーダンス整合が取れている状
態にすることによって供給する高周波電力の無駄をなく
し、更には、高周波電源に余計な負荷をかけないため高
周波電源の寿命を長くすることが可能になる荷電粒子加
速装置が提供される。According to the present invention, when a beam having different current values is accelerated by one charged particle accelerating device, impedance matching is always maintained between the waveguide system and the accelerating tube. Thus, there is provided a charged particle accelerator which eliminates waste of high frequency power supplied and further prolongs the life of the high frequency power source because an extra load is not applied to the high frequency power source.
【図１】本発明の荷電粒子加速装置の実施例の説明図。FIG. 1 is an explanatory diagram of an embodiment of a charged particle accelerator of the present invention.
１ａ，１ｂ…加速管、２…サーキュレータ、３…無反射
終端、４…高周波切替装置、５…クライストロン、６…
高周波発振器。1a, 1b ... Accelerator tube, 2 ... Circulator, 3 ... Non-reflective termination, 4 ... High frequency switching device, 5 ... Klystron, 6 ...
High frequency oscillator.
Claims (1)
に導く導波管から構成される荷電粒子加速装置におい
て、異なるビーム電流値に応じた結合定数の異なる複数
個の加速管を有することを特徴とする荷電粒子加速装
置。1. A charged particle accelerator comprising an accelerating tube, a high-frequency power source, and a waveguide for guiding high-frequency waves to the accelerating tube, having a plurality of accelerating tubes having different coupling constants corresponding to different beam current values. A charged particle acceleration device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP440194A JPH07211498A (en) | 1994-01-20 | 1994-01-20 | Charged particle accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP440194A JPH07211498A (en) | 1994-01-20 | 1994-01-20 | Charged particle accelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07211498A true JPH07211498A (en) | 1995-08-11 |
Family
ID=11583325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP440194A Pending JPH07211498A (en) | 1994-01-20 | 1994-01-20 | Charged particle accelerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07211498A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020072332A1 (en) * | 2018-10-03 | 2020-04-09 | Varex Imaging Corporation | Multiple head linear accelerator system |
-
1994
- 1994-01-20 JP JP440194A patent/JPH07211498A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020072332A1 (en) * | 2018-10-03 | 2020-04-09 | Varex Imaging Corporation | Multiple head linear accelerator system |
| CN113039869A (en) * | 2018-10-03 | 2021-06-25 | 万睿视影像有限公司 | Multi-head linear accelerator system |
| US11089670B2 (en) | 2018-10-03 | 2021-08-10 | Varex Imaging Corporation | Multiple head linear accelerator system |
| CN113039869B (en) * | 2018-10-03 | 2022-08-12 | 万睿视影像有限公司 | Multihead Linear Accelerator System |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Gilmour Jr | Microwave tubes | |
| US9380695B2 (en) | Traveling wave linear accelerator with RF power flow outside of accelerating cavities | |
| US4162423A (en) | Linear accelerators of charged particles | |
| US5469022A (en) | Extended interaction output circuit using modified disk-loaded waveguide | |
| US7400094B2 (en) | Standing wave particle beam accelerator having a plurality of power inputs | |
| JPH07211498A (en) | Charged particle accelerator | |
| US4027193A (en) | Klystron-resonant cavity accelerator system | |
| EP0883152A3 (en) | Coaxial inductive output tube | |
| US5162747A (en) | Velocity modulation microwave amplifier with multiple band interaction structures | |
| Wang et al. | Efficient co-generation of seventh-harmonic radiation in cyclotron autoresonance acceleration | |
| US4988956A (en) | Auto-resonant peniotron having amplifying waveguide section | |
| JP2002093600A (en) | Charged particle accelerator | |
| US6137811A (en) | System for conditioning an electron beam for improved free-electron laser operation | |
| CA1040309A (en) | Klystron-accelerator system | |
| US5281894A (en) | Dual cavity for a dual frequency gyrotron | |
| Kong | A low voltage waveguide free electron laser based on a longitudinal interaction mechanism | |
| Somjit et al. | Numerical Simulation and Optimization of a 3-GHz Chopper/Prebuncher System for the S-DALINAC | |
| SU1109030A1 (en) | Charged particle linear accelerator | |
| JP2520641B2 (en) | Standing wave accelerator | |
| Arapov et al. | High power sources for VLEPP | |
| SU980600A2 (en) | Linear electron accelerator | |
| Ericksen et al. | TE modes of an axially multiple-grooved rectangular waveguide | |
| Lawson et al. | A novel hybrid slow-wave/fast-wave traveling-wave amplifier | |
| Lu et al. | High power microwave generation by Cherenkov-cyclotron instability in a metamaterial structure with negative group velocity | |
| Luhmann Jr | Stable High Power Harmonic Gyro-Amplifier. |