JPS63138697A - Radio frequency accelerator - Google Patents
Radio frequency acceleratorInfo
- Publication number
- JPS63138697A JPS63138697A JP28453586A JP28453586A JPS63138697A JP S63138697 A JPS63138697 A JP S63138697A JP 28453586 A JP28453586 A JP 28453586A JP 28453586 A JP28453586 A JP 28453586A JP S63138697 A JPS63138697 A JP S63138697A
- Authority
- JP
- Japan
- Prior art keywords
- bias
- current
- ferrite
- bias winding
- winding
- 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
- 238000004804 winding Methods 0.000 claims description 53
- 229910000859 α-Fe Inorganic materials 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims description 16
- 150000002500 ions Chemical class 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000001133 acceleration Effects 0.000 description 20
- 239000004020 conductor Substances 0.000 description 10
- 230000005284 excitation Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Particle Accelerators (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
[発明の目的コ
(産業上の利用分野)
本発明は、プロトン(陽子)9重イオン等の荷電粒子を
加速するシンクロトロン等の荷電粒子加速器に装備され
る高周波加速器、さらに詳しくは、0NE−GAP方式
の高周波加速器に関し、特に、加速効率の向上を図るよ
うにした高周波加速器に関する。[Detailed Description of the Invention] [Purpose of the Invention (Industrial Application Field) The present invention relates to a high-frequency accelerator equipped in a charged particle accelerator such as a synchrotron that accelerates charged particles such as proton (proton) 9-heavy ions. More specifically, the present invention relates to an 0NE-GAP type high frequency accelerator, and particularly to a high frequency accelerator designed to improve acceleration efficiency.
(従来の技術)
荷電粒子加速器の一種であるシンクロトロンには、円形
状に配置された偏向磁石、集束電磁石と、それらの磁極
間隙を通るドーナツ状の真空容器と、高周波加速器およ
び真空ポンプ等から構成されたものがある。この構成で
は、磁界と加速の周波数とを粒子エネルギーの増加に対
応して変化させ、粒子を一定半径の円軌道上に保持しつ
つ加速するようになっている。(Prior art) A synchrotron, which is a type of charged particle accelerator, consists of a circularly arranged deflection magnet and a focusing electromagnet, a doughnut-shaped vacuum vessel that passes through the gap between these magnetic poles, a high-frequency accelerator, a vacuum pump, etc. There is something configured. In this configuration, the magnetic field and acceleration frequency are changed in response to an increase in particle energy, so that the particles are accelerated while being maintained on a circular orbit with a constant radius.
ざらに、その作用を詳細に述べると、入射器であるライ
ナック(線形加速器)で予備加速された荷電粒子ビーム
を、高真空リング(真空容器)に入射し、前記磁石で発
生させた磁界は該粒子をほぼ一定の軌道を走らせるよう
に作用させ、容器内を周回させるようにする。この周回
における回転周波数の整数倍の高周波高電圧と同期した
荷電粒子ビームは、繰返して加速力を受け、これに伴う
てエネルギーも増加してゆく。この場合、周回における
平均軌道半径を一定に保ようにN磁石を励磁するが、電
子の場合は、入射エネルギーを例えば20MeVとすれ
ば、既に光速の99.97%に達しているのに対し、プ
ロトンの場合は、10MeVであり、光速の14.48
%であり、また、加速されて100MeVrは42.8
2%、1GeVでは87.50%である。つまり、電子
のような重粒子と違ってプロトンのような重粒子にあっ
ては、高加速を実施する必要があり、このため、高周波
加速器としても、その共振周波数を大幅に変調させねば
ならない。To briefly describe its operation in detail, a charged particle beam pre-accelerated by a linac (linear accelerator), which is an injector, is incident on a high vacuum ring (vacuum container), and the magnetic field generated by the magnet is applied to the charged particle beam. The particles are caused to run in a nearly constant trajectory, causing them to orbit inside the container. The charged particle beam synchronized with a high frequency high voltage that is an integral multiple of the rotational frequency during this revolution is repeatedly subjected to acceleration force, and the energy increases accordingly. In this case, the N magnet is excited to keep the average orbital radius constant during the orbit, but in the case of electrons, if the incident energy is, for example, 20 MeV, it has already reached 99.97% of the speed of light. In the case of protons, it is 10 MeV, which is 14.48 of the speed of light.
%, and 100MeVr accelerated is 42.8
2%, and 87.50% at 1 GeV. In other words, unlike heavy particles such as electrons, heavy particles such as protons must be highly accelerated, and therefore, as a high-frequency accelerator, their resonant frequency must be significantly modulated.
一般に、プロトンや重イオンのような重荷電粒子を加速
するシンクロトロンに装備される高周波加速器は、フェ
ライトを装荷した同軸インダクタンスを用いてLC共振
器としたフェライト負荷高周波加速器である。この共振
器では、フェライトに直流バイアス磁界を印加して透磁
率を減少させ、これによりインダクタンスを次第に低下
させることにより共振周波数を上昇させ、同調をとる手
法が用いられる。Generally, a high-frequency accelerator installed in a synchrotron that accelerates heavily charged particles such as protons and heavy ions is a ferrite-loaded high-frequency accelerator that uses a ferrite-loaded coaxial inductance as an LC resonator. In this resonator, a method is used in which a direct current bias magnetic field is applied to the ferrite to reduce its magnetic permeability, thereby gradually lowering the inductance, thereby raising the resonant frequency and achieving tuning.
以下、この種のフェライト負荷高周波加速器について詳
細に説明する。すなわち、第3図に示すように、内筒1
と外筒2との間にフェライト3が装荷されて1/4波長
の同軸形共振器4が構成され、この共振器4を2台逆位
相にして結合して空洞を構成し、この空洞をして高周波
加速器としている。この構成におけるフェライト3に直
流バイアス磁界を印加する手段としてはいくつかある。This type of ferrite-loaded high-frequency accelerator will be described in detail below. That is, as shown in FIG.
A ferrite 3 is loaded between the ferrite 3 and the outer cylinder 2 to form a 1/4 wavelength coaxial resonator 4. Two of these resonators 4 are coupled with opposite phases to form a cavity. It is used as a high frequency accelerator. There are several means for applying a DC bias magnetic field to the ferrite 3 in this configuration.
フェライト3に直流バイアス磁界を印加するには、空洞
(キャビティ)本体に電流を流す手法、フェライト3に
導体を数回巻回してこの導体に電流を流す手法があり、
また、バイアス電流の流し方により、0NE−GAP方
式とTWO−GAP方式とがある。To apply a DC bias magnetic field to the ferrite 3, there are two methods: passing a current through the cavity body, and winding a conductor around the ferrite 3 several times and passing the current through the conductor.
Furthermore, there are two types, the 0NE-GAP method and the TWO-GAP method, depending on how the bias current is passed.
以下、0NE−GAP方式の高周波加速器について説明
する。The 0NE-GAP type high frequency accelerator will be described below.
第4図は、米国の0mn1tr’On研究や西独国のG
SI重イオン・シンクロトロン計画において使用される
O N E、−G A P方式の高周波加速器の概略図
である。Figure 4 shows the US's 0mn1tr'On research and West Germany's G
1 is a schematic diagram of an ONE, -GAP type high frequency accelerator used in the SI heavy ion synchrotron project.
第4図において、左右のフェライトリング3を8字方に
取囲むようにブスバーからなるバイアス巻115が数タ
ーン巻回され、バイアス電源6が接続されている。図中
7はビーム軌道、8は加速ギャップ、9はチョーク巻線
、10は高周波アンプ、11はBl源である。In FIG. 4, a bias winding 115 made of a bus bar is wound several turns so as to surround the left and right ferrite rings 3 in a figure eight direction, and a bias power supply 6 is connected to the bias winding 115. In the figure, 7 is a beam trajectory, 8 is an acceleration gap, 9 is a choke winding, 10 is a high frequency amplifier, and 11 is a Bl source.
上記において、バイアス巻115は、逆位相の高周波電
圧を誘起させる機能も有し、また、適切なターン数だけ
フェライトリング3の外周側に設置することで、バイア
ス電流回路に対するバイアス電源6の電源容量は小さい
ものとし得る。In the above, the bias winding 115 also has the function of inducing a high frequency voltage of opposite phase, and by installing an appropriate number of turns on the outer circumferential side of the ferrite ring 3, the bias winding 115 can increase the power capacity of the bias power supply 6 for the bias current circuit. can be small.
しかるに、第4図の構成の高周波加速器をシンクロトロ
ン内に設置して運転する場合は次ぎのようにして行なう
。すなわち、シンクロトロンでの運転プログラムに従っ
て、スタート時の加速周波数から最終の加速周波数まで
、バイアス電流を変化させつつ調整しながら上昇させる
。この場合、加速スタート時の周波数はバイアス電流零
への状態でスタートさせ、徐々にバイアス電流を大きく
して共振周波数を上昇させる。そして、加速終了時の最
大共振周波数時にバイアス電流が最大値になるように制
御を行なう。運転プログラムは、偏向磁石の磁束密度の
変化速度、加速電圧、加速電圧位相等と関連しているも
のであり、また、バイアス電流の変化は、粒子の加速効
率を悪化させるため、バイアス電流の制御は高い制御精
度が要求される。However, when the high-frequency accelerator having the configuration shown in FIG. 4 is installed and operated within a synchrotron, it is carried out as follows. That is, according to the synchrotron operating program, the bias current is varied and adjusted to increase from the initial acceleration frequency to the final acceleration frequency. In this case, the frequency at the time of acceleration start is started with a bias current of zero, and the bias current is gradually increased to raise the resonant frequency. Then, control is performed so that the bias current reaches its maximum value at the maximum resonance frequency at the end of acceleration. The operation program is related to the rate of change of the magnetic flux density of the deflecting magnet, the accelerating voltage, the accelerating voltage phase, etc. Also, since changes in the bias current deteriorate particle acceleration efficiency, bias current control is required. requires high control accuracy.
このようにバイアス電流は、高い制御精度が要求される
ものであるが、このバイアス電流は、零へから最大電流
(通常1000Afj!度)まで変化するものであり、
この全範囲でバイアス電源6は安定動作することが要求
される。しかし乍、この種の大容量電源(バイアス電源
6)では、全ての範囲での安定を期待するのは難しく、
通常、定格電流の100%〜10%の範囲で安定動作す
るものであり、定格電流の10%以下の範囲では不安定
となり、低バイアス電流時の加速制御に困難が生じ、加
速効率を低下させる、という問題点があった。As described above, the bias current requires high control accuracy, but this bias current changes from zero to the maximum current (usually 1000 Afj! degrees).
The bias power supply 6 is required to operate stably over this entire range. However, with this type of large capacity power supply (bias power supply 6), it is difficult to expect stability over the entire range.
Normally, it operates stably in the range of 100% to 10% of the rated current, but becomes unstable in the range of 10% or less of the rated current, making acceleration control difficult at low bias currents and reducing acceleration efficiency. There was a problem.
(発明が解決しようとする問題点)
このように従来技術による高周波加速器においては、バ
イアス電流は高い制御精度が要求されるものであるが、
′R電源装置も自ずと特性限界があるため、特に低バイ
アス電流時では動作不安定が生じ、加速効率の低下を招
いていた。(Problems to be Solved by the Invention) As described above, in the conventional high frequency accelerator, the bias current requires high control accuracy;
Since the 'R power supply device also has characteristic limits, its operation becomes unstable, especially at low bias currents, leading to a decrease in acceleration efficiency.
そこで本発明は、低バイアス電流時でのバイアス電流の
不安定性を解消し、加速効率の高い高周波加速器を提供
することを目的とする。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a high frequency accelerator that eliminates the instability of bias current at low bias currents and has high acceleration efficiency.
[発明の構成]
(問題点を解決するための手段)
本発明では上記問題点を解決し且つ目的を達成するため
に次ぎのように構成している。すなわち、内筒と外筒と
の間にフェライトが設けられ且つ該フェライトの外周に
バイアス巻線が巻回されて4分の1波長の同軸型共振器
が構成され、この共振器を2個対向させて結合させ且つ
両弁振器の内l!!間にaN圧を印加することにより、
プロトン。[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems and achieve the object, the present invention is constructed as follows. That is, a ferrite is provided between the inner tube and the outer tube, and a bias winding is wound around the outer periphery of the ferrite to construct a quarter wavelength coaxial resonator. Let's connect and connect both valve vibrators! ! By applying aN pressure between
proton.
重イオン等の荷電粒子を加速するようにした高周波加速
器において、前記フェライトの外周に、前記バイアス巻
線とは別の副バイアス巻線を巻回したことを特徴とする
。A high frequency accelerator for accelerating charged particles such as heavy ions is characterized in that a sub-bias winding separate from the bias winding is wound around the outer periphery of the ferrite.
(作用)
このように主バイアス巻線と副バイアス巻線とを構成し
、この副バイアス巻線には、主バイアス巻線とは逆方向
に一定励磁するように電流を流す。これにより、主バイ
アス巻線に流れる電流は最低値を上回る電流値となるか
ら、主バイアス電流は、電源装置の安定動作範囲(定格
電流の100%〜10%の範囲)で、零へから最大電流
まで高い精度で制御できるようになる。(Function) The main bias winding and the sub-bias winding are configured in this way, and a current is passed through the sub-bias winding so as to be constantly excited in the direction opposite to that of the main bias winding. As a result, the current flowing through the main bias winding becomes a current value higher than the minimum value, so the main bias current increases from zero to maximum within the stable operating range of the power supply (100% to 10% of the rated current). Even the current can be controlled with high precision.
(実施例)
以下本発明にかかる高周波加速器の一実施例を、第3図
及び第4図と同一部分には同一符号を付した第1図を参
照して説明する。すなわち、本実施例では、内筒1と外
筒2との間にフェライト3が設けられ且つ該フェライト
3の外周にバイアス巻線(主バイアス巻線)5が巻回さ
れて4分の1波長の同軸型共振器4が構成され、この共
振器4を2個逆位相で対向させて結合させている。図中
では、中央より左と右とにそれぞれ共振器4が構成され
たものとなっている。ここで、バイアス巻線(主バイア
ス巻線)5は、両弁振器4,4の間で高周波を相殺する
ように交鎖させて結合し、バイアス電源(主バイアス電
源)6に接続されている。(Embodiment) An embodiment of the high frequency accelerator according to the present invention will be described below with reference to FIG. 1, in which the same parts as in FIGS. 3 and 4 are given the same reference numerals. That is, in this embodiment, a ferrite 3 is provided between an inner cylinder 1 and an outer cylinder 2, and a bias winding (main bias winding) 5 is wound around the outer periphery of the ferrite 3, so that the ferrite 3 has a 1/4 wavelength. A coaxial type resonator 4 is constructed, and two of these resonators 4 are coupled with each other facing each other in opposite phases. In the figure, resonators 4 are configured on the left and right sides of the center, respectively. Here, the bias winding (main bias winding) 5 is cross-linked and coupled between both valve oscillators 4, 4 so as to cancel out high frequencies, and is connected to a bias power supply (main bias power supply) 6. There is.
両弁振器4.4の内筒1の結合部にはビーム軌道7から
運なる加速ギャップ8が設けられている。An acceleration gap 8 extending from the beam trajectory 7 is provided at the junction of the inner cylinders 1 of the two valve vibrators 4.4.
またフェライト3の一部には、Bri源11に接続され
たチョーク巻線9が巻回され、このチョーク巻線9に誘
起される電力は高周波アンプ10に与えられ、この高周
波アンプ10の出力は加速ギャップ8の片側の内筒1に
導入されることで、ビーム軌道7内のプロトン、重イオ
ン等の荷電粒子を加速するようにしている。Further, a choke winding 9 connected to a Bri source 11 is wound around a part of the ferrite 3, and the power induced in this choke winding 9 is given to a high frequency amplifier 10, and the output of this high frequency amplifier 10 is By being introduced into the inner cylinder 1 on one side of the acceleration gap 8, charged particles such as protons and heavy ions within the beam trajectory 7 are accelerated.
さらに、フェライト3の外周のバイアス巻線(主バイア
ス巻線)5と同位置には副バイアス巻線12が巻回され
、この副バイアス巻線12は安定度のよい一定電流を供
給できる副バイアス電源13に接続されている。Furthermore, a sub-bias winding 12 is wound around the outer periphery of the ferrite 3 at the same position as the bias winding (main bias winding) 5, and this sub-bias winding 12 is a sub-bias winding that can supply a stable constant current. It is connected to the power supply 13.
ここで、主バイアス巻線5と副バイアス巻線12との関
係について説明する。すなわち、第2図に示すように、
主バイアス巻線5の導体5aと副バイアス巻線12の導
体12aとは、絶縁物14を介して支持具15により支
持固定させた構成とする。この場合、副バイアス巻線1
2への通電量は主バイアス巻線5の通電量の10%程度
であり、これにより副バイアス巻I!12の導体12a
は、その導体断面は、主バイアス巻線5の導体5aより
も小さいものでよい。Here, the relationship between the main bias winding 5 and the sub bias winding 12 will be explained. That is, as shown in Figure 2,
The conductor 5a of the main bias winding 5 and the conductor 12a of the sub bias winding 12 are supported and fixed by a support 15 via an insulator 14. In this case, the sub bias winding 1
The amount of current applied to the main bias winding 5 is approximately 10% of the amount of current applied to the main bias winding 5. 12 conductors 12a
The cross section of the conductor may be smaller than that of the conductor 5a of the main bias winding 5.
次ぎに上記の如く構成された本実施例の作用について説
明する。すなわち、バイアス巻線源6の定格の安定度が
保証される最低電流(定格の10%程度)If)を、副
バイアス電源13から副バイアス巻線12に、主バイア
ス巻m5とは逆向きに流す。これにより、フェライト3
は主バイアス巻線5による励磁とは逆方向に一定に励磁
され、励磁は相殺されてフェライト3は無励磁の状態と
なる。Next, the operation of this embodiment configured as described above will be explained. That is, the minimum current (about 10% of the rating) If) that guarantees the stability of the rating of the bias winding source 6 is applied from the auxiliary bias power supply 13 to the auxiliary bias winding 12 in the opposite direction to the main bias winding m5. Flow. As a result, ferrite 3
is constantly excited in the opposite direction to the excitation by the main bias winding 5, the excitation is canceled out, and the ferrite 3 is in a non-excited state.
この状態を加速スタート時の共振周波数となるようにし
て、シンクロトロンの運転プログラムに従って加速をス
タートする。この状態より主パイアスミ′m6からの電
流つまりバイアス電流を増大させて、共振周波数を上げ
、必要な最大のバイアス電流にまで上昇させ、制御を行
なう。This state becomes the resonance frequency at the start of acceleration, and acceleration is started according to the synchrotron operation program. From this state, the current from the main piezoelectric mirror m6, that is, the bias current, is increased to raise the resonant frequency, and the bias current is increased to the maximum required value for control.
上記の制御にあっては、バイアス電流零への状態から最
大共振周波数時であるバイアス電流の最大値までを、バ
イアスN源6の定格の安定度が保証される電流範囲内で
実施することができるので、バイアス電流の全範囲での
安定により加速副部が容易となり、加速効率の低下を招
くことがない。In the above control, it is possible to carry out the process from zero bias current to the maximum value of the bias current at the maximum resonance frequency within a current range that guarantees the stability of the rated bias N source 6. Since the bias current is stable over the entire range, the acceleration sub-section becomes easy and the acceleration efficiency does not deteriorate.
第2図に示すように、主バイアス巻線5の導体5aと副
バイアス巻線12の導体12aとが全回路上で近接して
いることで、主バイアス巻線5による励磁と副バイアス
巻線12による励磁とは、巻線及び空洞内の全ての部分
で効率良く相殺されるので、他の要素への影響をなくし
て上述の安定加速制御が実現されるものである。As shown in FIG. 2, the conductor 5a of the main bias winding 5 and the conductor 12a of the sub bias winding 12 are close to each other in the entire circuit, so that the excitation by the main bias winding 5 and the conductor 12a of the sub bias winding 12 are close to each other. Since the excitation by 12 is efficiently canceled out in all parts of the winding and the cavity, the above-mentioned stable acceleration control is realized without affecting other elements.
本発明では、バイアス巻線の低電流での励磁効果を相殺
するためにフェライト外周に副バイアス巻線を設けるこ
とを特徴とするものであって、副バイアス巻線の形状は
第2図に示す形状に限定さるものではなく、種々の形状
のものが適用できる。The present invention is characterized in that a sub-bias winding is provided on the outer periphery of the ferrite in order to offset the excitation effect of the bias winding at low current, and the shape of the sub-bias winding is shown in FIG. The shape is not limited, and various shapes can be applied.
また、副バイアス巻線のターン数についても少なくした
り、副バイアス巻線は一定励磁であることからインダク
タンスの影響はないことからターン数を多くしてもよい
。この池水発明の要旨を逸脱しない範囲で種々変形して
実施できるものである。Furthermore, the number of turns in the sub-bias winding may be reduced, or the number of turns may be increased since the sub-bias winding is constantly excited and is not affected by inductance. The invention can be modified in various ways without departing from the gist of the invention.
[発明の効果]
以上のように本発明では、バイアス巻線の低電流での励
磁効果を相殺するためにフェライト外周に副バイアス巻
線を設けたことで、バイアス電源の安定動作範囲(定格
電流の100%〜10%の範囲)で、零へから最大電流
まで高い精度で制御できるようになり、もって低バイア
ス電流時でのバイアス電流の不安定性を解消し、加速効
率の高い高周波加速器が提供できるものである。[Effects of the Invention] As described above, in the present invention, by providing the auxiliary bias winding around the ferrite outer circumference in order to offset the excitation effect of the bias winding at low current, the stable operating range (rated current (in the range of 100% to 10% of It is possible.
4、面の簡単な説明 図面の簡21イ、な説明第1図は
本発明による高周波加速器の一実施例の構成を示す図、
第2図は同実施例における要部詳細図、第3図は高周波
加速器の原理を示す図、第4図は本発明が適用される高
周波加速器の構成を示す図である。4. Brief explanation of the drawings Fig. 1 is a diagram showing the configuration of an embodiment of the high frequency accelerator according to the present invention.
FIG. 2 is a detailed view of the main parts of the same embodiment, FIG. 3 is a diagram showing the principle of the high frequency accelerator, and FIG. 4 is a diagram showing the configuration of the high frequency accelerator to which the present invention is applied.
1・・・内筒、2・・・外筒、3・・・フェライト、4
・・・共振器、5・・・バイアス巻線、6・・・バイア
ス電源、12・・・副バイアス巻線、13・・・副バイ
アス電源。1...Inner cylinder, 2...Outer cylinder, 3...Ferrite, 4
... Resonator, 5... Bias winding, 6... Bias power supply, 12... Sub-bias winding, 13... Sub-bias power supply.
出願人代理人 弁理士 鈴江武彦 第1図 第2図Applicant's agent: Patent attorney Takehiko Suzue Figure 1 Figure 2
Claims (1)
イトの外周にバイアス巻線が巻回されて4分の1波長の
同軸型共振器が構成され、この共振器を2個対向させて
結合させ且つ両共振器の内筒間に高電圧を印加すること
により、プロトン、重イオン等の荷電粒子を加速するよ
うにした高周波加速器において、前記フェライトの外周
に、前記バイアス巻線とは別の副バイアス巻線を巻回し
たことを特徴とする高周波加速器。A ferrite is provided between the inner tube and the outer tube, and a bias winding is wound around the outer periphery of the ferrite to construct a quarter wavelength coaxial resonator. In a high frequency accelerator in which charged particles such as protons and heavy ions are accelerated by coupling and applying a high voltage between the inner cylinders of both resonators, a A high frequency accelerator characterized by having a secondary bias winding wound thereon.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28453586A JPS63138697A (en) | 1986-11-29 | 1986-11-29 | Radio frequency accelerator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28453586A JPS63138697A (en) | 1986-11-29 | 1986-11-29 | Radio frequency accelerator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63138697A true JPS63138697A (en) | 1988-06-10 |
Family
ID=17679718
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP28453586A Pending JPS63138697A (en) | 1986-11-29 | 1986-11-29 | Radio frequency accelerator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63138697A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8643314B2 (en) | 2011-05-09 | 2014-02-04 | Sumitomo Heavy Industries, Ltd. | Particle accelerator and charged particle beam irradiation apparatus including particle accelerator |
-
1986
- 1986-11-29 JP JP28453586A patent/JPS63138697A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8643314B2 (en) | 2011-05-09 | 2014-02-04 | Sumitomo Heavy Industries, Ltd. | Particle accelerator and charged particle beam irradiation apparatus including particle accelerator |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5504341A (en) | Producing RF electric fields suitable for accelerating atomic and molecular ions in an ion implantation system | |
US4771208A (en) | Cyclotron | |
Odera et al. | Variable frequency heavy-ion linac, RILAC: I. Design, construction and operation of its accelerating structure | |
US4638216A (en) | Electron cyclotron resonance ion source | |
CN207802493U (en) | Petal-shaped accelerator and its c-type connector motor magnet | |
Castronovo et al. | The new Elettra 2.0 magnets | |
US5021919A (en) | Device for the generation of electrically charged and/or uncharged particles | |
US3334267A (en) | Ferrite tuned cavity stabilized magnetron | |
JPS63138697A (en) | Radio frequency accelerator | |
US8624496B2 (en) | Phase and frequency locked magnetron | |
Vitello | Cyclotron maser and peniotron-like instabilities in a whispering gallery mode gyrotron | |
EP0551027B1 (en) | Magnetic focusing device | |
US5038077A (en) | Gyroklystron device having multi-slot bunching cavities | |
Emura et al. | Superconducting storage ring NIJI‐III | |
Anashin et al. | Compact storage rings Siberia‐AS and Siberia‐SM synchrotron radiation sources for lithography | |
Celona et al. | Design of the AISHa Ion source for hadrontherapy facilities | |
Green et al. | Design and operation of the 100 MeV Aladdin microtron injector | |
JPH0888100A (en) | Accelerating device and its operating procedure | |
RU2059346C1 (en) | Heavy-current linear ion accelerator | |
FI79924B (en) | HOEG FREQUENCY IONACCELERATOR. | |
JP3054712B1 (en) | High frequency acceleration cavity and method of controlling high frequency acceleration cavity | |
Leupold et al. | Impact of The High-Energy Product Materials on Magnetic Circuit Design | |
Srivastava et al. | Initial results of the 2.45 GHz excitation of the superconducting ECR ion source in its high‐B modea | |
JP5656769B2 (en) | Microwave ion source and ion generation method | |
JP2892562B2 (en) | Circular accelerator and its operation method |