JPH04319300A - High frequency accelerating device for accelerator - Google Patents

High frequency accelerating device for accelerator

Info

Publication number
JPH04319300A
JPH04319300A JP8656391A JP8656391A JPH04319300A JP H04319300 A JPH04319300 A JP H04319300A JP 8656391 A JP8656391 A JP 8656391A JP 8656391 A JP8656391 A JP 8656391A JP H04319300 A JPH04319300 A JP H04319300A
Authority
JP
Japan
Prior art keywords
high frequency
phase
cavity
accelerator
voltage
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
Application number
JP8656391A
Other languages
Japanese (ja)
Inventor
Nagaharu Yamazaki
長治 山崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP8656391A priority Critical patent/JPH04319300A/en
Publication of JPH04319300A publication Critical patent/JPH04319300A/en
Pending legal-status Critical Current

Links

Landscapes

  • Particle Accelerators (AREA)

Abstract

PURPOSE:To provide a high frequency accelerating device for an accelerator capable of satisfactorily correcting a phase even at the time of rising of a pattern of a cavity voltage when closed loop control of the phase cannot follow. CONSTITUTION:In a high frequency accelerating device for an accelerator provided with a closed loop control system where a high frequency voltage inside a cavity 5 is detected and a voltage detection value is compared with a reference voltage value so as to determine a target value of high frequency electric power to be applied to the cavity 5, and a phase control loop system for controlling a phase of the high frequency electric power to be applied to the cavity 5 in such a manner that a difference between the phase of the high frequency electric power and an output phase of an original oscillator becomes constant, there is provided a phase variation correct value generator for generating a signal for correcting phase variation which is varied according to the high frequency electric power applied to the cavity 5.

Description

【発明の詳細な説明】[Detailed description of the invention]

[発明の目的] [Purpose of the invention]

【0001】0001

【産業上の利用分野】本発明は、加速器の加速効率を向
上させるための加速器の高周波加速装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high frequency accelerator for an accelerator for improving the acceleration efficiency of the accelerator.

【0002】0002

【従来の技術】従来、図3、図4に示すようなシンクロ
トロン加速器を使った粒子加速システムが知られている
。これを説明すると、まず図3において、1はシンクロ
トロン加速器であり、これは初期加速用ライナック2と
、入射器3と複数の偏向磁石4を備えている。
2. Description of the Related Art Conventionally, particle acceleration systems using synchrotron accelerators as shown in FIGS. 3 and 4 have been known. To explain this, first, in FIG. 3, 1 is a synchrotron accelerator, which is equipped with a linac 2 for initial acceleration, an injector 3, and a plurality of deflection magnets 4.

【0003】粒子はライナック2から入射器3に入射さ
れ複数の偏向磁石4の磁界内を通されて偏向されること
により再び入射器3に戻るように構成され、粒子は、こ
の経路を巡回するようになっている。この粒子が巡回す
る経路中にはキャビティ5が設けられ、粒子は、巡回中
、このキャビティ5を通る度にその内部に発生させてい
る高周波電圧により加速されるようになっている。6は
その粒子の経路に沿って形成されている真空ビ―ムダク
トである。
Particles are incident on the injector 3 from the linac 2, passed through the magnetic fields of a plurality of deflecting magnets 4, and returned to the injector 3 again by being deflected, and the particles circulate along this path. It looks like this. A cavity 5 is provided in the path along which the particles circulate, and each time the particles pass through this cavity 5 during their circulation, they are accelerated by a high frequency voltage generated inside the cavity. 6 is a vacuum beam duct formed along the path of the particles.

【0004】図4において、キャビティ5内には電力投
入器7とチュ―ナ―8とプロ―ブ9とが設けられ、電力
投入器7により高周波電力がキャビティ5内に供給され
ることにより、チュ―ナ―8との関係で粒子加速用の高
周波電圧が生じ、このチュ―ナ―8を退進させることに
より、キャビティ5内の共振周波数が調整されるもので
ある。プロ―ブ9は該キャビティ5内の高周波電圧の強
さに応じた電圧値を有する高周波信号を得るためのもの
で、この高周波信号はキャビティ5内に与える高周波電
力の振幅制御に用いられるものである。
In FIG. 4, a power input device 7, a tuner 8, and a probe 9 are provided in the cavity 5, and by supplying high frequency power to the cavity 5 by the power input device 7, A high frequency voltage for particle acceleration is generated in relation to the tuner 8, and by retracting the tuner 8, the resonance frequency within the cavity 5 is adjusted. The probe 9 is used to obtain a high frequency signal having a voltage value corresponding to the strength of the high frequency voltage inside the cavity 5, and this high frequency signal is used to control the amplitude of the high frequency power applied to the inside of the cavity 5. be.

【0005】10は原発振器、11は励振装置、12は
電力増幅器、13はダミ―ロ―ド、14はサ―キュレ―
タ、15はチュ―ナ―制御装置、16,17は方向性結
合器である。
10 is an original oscillator, 11 is an excitation device, 12 is a power amplifier, 13 is a dummy load, and 14 is a circuit.
15 is a tuner control device, and 16 and 17 are directional couplers.

【0006】原発振器10からの高周波信号は、励振装
置11によりその位相と振幅が制御され、その制御され
た高周波信号は電力増幅器12により増幅され、サ―キ
ュレ―タ14を介して、電力投入器7により高周波電力
としてキャビティ5に供給される。また、電力投入器7
からの反射高周波電力はダミ―ロ―ド13へ伝送されこ
れらが吸収されるようになっている。チュ―ナ―8はチ
ュ―ナ―制御装置15により同調位置に移動させられる
ようになっている。16,17の方向性結合器からの高
周波信号はキャビティ5に与える高周波電力の位相制御
に用いられるものである。
The phase and amplitude of the high frequency signal from the original oscillator 10 are controlled by an excitation device 11, and the controlled high frequency signal is amplified by a power amplifier 12, and then passed through a circulator 14 to turn on the power. It is supplied to the cavity 5 as high frequency power by the device 7. In addition, the power input device 7
The reflected high frequency power is transmitted to the dummy load 13 and absorbed. The tuner 8 can be moved to a tuning position by a tuner control device 15. The high frequency signals from the directional couplers 16 and 17 are used for phase control of the high frequency power applied to the cavity 5.

【0007】図5は図4の励振装置11を構成を示すブ
ロック図である。図4に示されているブロックと同一ブ
ロックには同一符号を付して示し、ここではその説明を
省略する。図5において、18は図4で説明した方向性
結合器16,17により検出される基準高周波信号P(
ref)と高周波信号P(rf)との位相差Δψを検出
する位相差検出器、19はこの位相差Δψが入力される
移相器制御器、20はこの移相器制御器19により制御
される移相器、21はキャビティ検出高周波信号Vc(
rf)を検出するキャビティ電圧検出器、22はこのキ
ャビティ電圧検出器21で検出されたキャビティ電圧検
出信号Vcとキャビティ電圧基準Vc(ref)とが入
力されるアッテネ―タ制御器、23はこのアッテネ―タ
制御器22により制御されるアッテネ―タ、24は電力
増幅器である。位相差検出器18には方向性結合器16
,17からの高周波信号P(ref),P(rf)が入
力されると、その位相差信号Δψを生成してこれを移相
器制御器19に与えるものである。移相器制御器19は
位相差が一定となるような目標値を表した移相器制御信
号を移相器20に与えるもので、通常、比例積分制御器
等を具備している。移相器20は移相器制御信号が入力
されるとキャビティに与える高周波電力の位相と原発振
器10の出力位相との差が常に一定となるようにして、
このキャビティに与える高周波電力の位相変化を小さく
するものである。
FIG. 5 is a block diagram showing the configuration of the excitation device 11 of FIG. 4. Blocks that are the same as those shown in FIG. 4 are denoted by the same reference numerals, and their description will be omitted here. In FIG. 5, reference numeral 18 indicates a reference high frequency signal P(
ref) and the high-frequency signal P(rf); 19 is a phase shifter controller to which this phase difference Δψ is input; 20 is a phase shifter controller controlled by this phase shifter controller 19; 21 is a phase shifter for detecting a cavity detection high frequency signal Vc (
rf); 22 is an attenuator controller to which the cavity voltage detection signal Vc detected by the cavity voltage detector 21 and the cavity voltage reference Vc (ref) are input; 23 is an attenuator controller for detecting the attenuator The attenuator 24 is controlled by the controller 22, and 24 is a power amplifier. The phase difference detector 18 includes a directional coupler 16
, 17 are inputted, a phase difference signal Δψ is generated and this is given to the phase shifter controller 19. The phase shifter controller 19 provides the phase shifter 20 with a phase shifter control signal representing a target value that makes the phase difference constant, and usually includes a proportional-integral controller or the like. When the phase shifter control signal is input to the phase shifter 20, the difference between the phase of the high frequency power applied to the cavity and the output phase of the original oscillator 10 is always constant.
This is to reduce the phase change of the high frequency power applied to this cavity.

【0008】一方、キャビティ電圧検出器21にはプロ
―ブ9からのキャビティ検出高周波信号Vc(rf)が
入力され、キャビティ電圧検出器21によりキャビティ
検出高周波信号Vc(rf)の振幅に相当する電圧値の
直流電圧信号が生成され、これをキャビティ電圧検出信
号Vcとして出力する。アッテネ―タ制御器22には基
準電圧信号Vc(ref)とキャビティ電圧検出信号V
cとが入力され、このアッテネ―タ制御器22は両者の
電圧値を比較し、その差を見込んだ目標値を表したアッ
テネ―タ制御信号を出力するのもので、通常、比例積分
制御器等を具備している。このアッテネ―タ制御信号は
アッテネ―タ23に入力され、このアッテネ―タ23か
らそのアッテネ―タ制御信号を表す電力値に応じた電力
値の高周波電力信号が出力され、この高周波電力信号は
電力増幅器24を通して励振装置11の出力として送出
される。
On the other hand, the cavity detection high frequency signal Vc (rf) from the probe 9 is input to the cavity voltage detector 21, and the cavity voltage detector 21 detects a voltage corresponding to the amplitude of the cavity detection high frequency signal Vc (rf). A DC voltage signal with a value of Vc is generated and outputted as a cavity voltage detection signal Vc. The attenuator controller 22 receives a reference voltage signal Vc (ref) and a cavity voltage detection signal V.
c is input, and this attenuator controller 22 compares the voltage values of the two and outputs an attenuator control signal representing a target value that takes into account the difference between them, and is usually a proportional-integral controller. Equipped with etc. This attenuator control signal is input to the attenuator 23, and the attenuator 23 outputs a high frequency power signal having a power value corresponding to the power value representing the attenuator control signal. It is sent out as the output of the excitation device 11 through the amplifier 24.

【0009】前述の如く、シンクロトロン加速器を使っ
た粒子加速システムにあっては、従来キャビティ内部の
高周波電圧を検出、その検出電圧値と基準電圧値とを比
較してキャビティに与える高周波電力の目標値を決定す
る閉ル―プ制御を行っている。  そして、この閉ル―
プ制御を行うにあたり、基準電圧値を偏向電磁石等と相
関関係を持たせて所定のパタ―ンに変化させることによ
り、キャビティに与える高周波電力を調整し、キャビテ
ィに発生させる高周波電圧の強さを変化させて粒子を次
第に加速するようにしている。
As mentioned above, in a particle acceleration system using a synchrotron accelerator, conventionally the high frequency voltage inside the cavity is detected and the detected voltage value is compared with a reference voltage value to determine the target high frequency power to be applied to the cavity. Closed loop control is used to determine the value. And this closing rule
When performing loop control, the high-frequency power applied to the cavity is adjusted by correlating the reference voltage value with the bending electromagnet, etc., and changing it into a predetermined pattern, thereby controlling the strength of the high-frequency voltage generated in the cavity. This is done to gradually accelerate the particles.

【0010】図6はキャビティ電圧Vcの運転パタ―ン
の一例を示したものである。キャビティ電圧Vcは加速
粒子の入射時は0付近にしておき、次第に定格値まで立
上げていく。この立上げ時間Tiは通常数10μs 〜
数ms 程度である。
FIG. 6 shows an example of the operating pattern of the cavity voltage Vc. The cavity voltage Vc is kept close to 0 when the accelerated particles are incident, and is gradually raised to the rated value. This startup time Ti is usually several tens of microseconds ~
It is about several milliseconds.

【0011】又、キヤビティに与える高周波電力を図6
のパタ―ンのように広い範囲で調整することによって発
生する位相変化は、原発振器10の高周波信号を方向性
結合器16で検出しこの方向性結合器16から出力され
る基準高周波信号P(ref)の位相を基準位相として
位相の閉ル―プ制御を行うことにより小さくするように
している。
[0011] Also, the high frequency power applied to the cavity is shown in Fig. 6.
The phase change caused by adjustment over a wide range, such as the pattern of This is achieved by performing closed loop control of the phase using the phase of ref) as a reference phase.

【0012】0012

【発明が解決しようとする課題】ところで、キャビティ
に与える高周波電力の大きさに対する位相変化は図7に
示すような関係となっている。この位相変化は高周波電
力の出力変化に伴なって電力増幅器(例えば電力四極管
,クライストロン,半導体等)の特性による生じるもの
である。そこで、従来は前述したように高周波信号の位
相を閉ル―プ制御により位相変化を補正していた。この
時、図6に示すキャビティ電圧Vcのパタ―ンで運転す
る場合、その立上りのところで位相の閉ル―プ制御の応
答速度が追従できず、十分な位相補正ができなかった。 これは、このパタ―ンの立上り時間Tiが速ければ速い
程顕著であった。このため、加速粒子が加速器の巡回経
路から脱落し易くなり、加速器の加速効率を悪くしてし
まう問題があった。
By the way, the phase change with respect to the magnitude of the high frequency power applied to the cavity has a relationship as shown in FIG. This phase change occurs due to the characteristics of the power amplifier (eg, power tetrode, klystron, semiconductor, etc.) as the output of high-frequency power changes. Therefore, conventionally, as described above, the phase change of the high-frequency signal was corrected by closed-loop control. At this time, when operating with the pattern of the cavity voltage Vc shown in FIG. 6, the response speed of the phase closed loop control could not follow the rise of the cavity voltage Vc, and sufficient phase correction could not be performed. This was more noticeable as the rise time Ti of this pattern was faster. For this reason, there is a problem in that the accelerated particles tend to fall off from the circulation path of the accelerator, which deteriorates the acceleration efficiency of the accelerator.

【0013】本発明は、図6の例に示すようなキャビテ
ィ電圧Vcのパタ―ンで、その立上り時間Tiの間でも
十分な位相補正ができる加速器の高周波加速装置を提供
することを目的とする。 [発明の構成]
An object of the present invention is to provide a high frequency accelerator for an accelerator that can perform sufficient phase correction even during the rise time Ti in the pattern of the cavity voltage Vc as shown in the example of FIG. . [Structure of the invention]

【0014】[0014]

【課題を解決するための手段】本発明は上記の目的を達
成すために、高周波電力検出器と位相変化補正値発生器
を具備し、前記キャビティ5に与えられる高周波電力に
対して一義的に位相変化補正値を決定し、この高周波電
力と位相変化補正値との関係に従って、前記キャビティ
に与える高周波電力の位相変化を補正するような機能を
追加したことを特徴とする。
[Means for Solving the Problems] In order to achieve the above object, the present invention is equipped with a high frequency power detector and a phase change correction value generator, and uniquely measures the high frequency power given to the cavity 5. The present invention is characterized by adding a function of determining a phase change correction value and correcting the phase change of the high frequency power applied to the cavity according to the relationship between the high frequency power and the phase change correction value.

【0015】[0015]

【作用】本発明によれば、位相の閉ル―プ制御が追従で
きないような、キャビティ電圧Vcのパタ―ンの立上り
時においても、十分な位相補正ができ、加速粒子が加速
器の巡回経路から脱落し難くなり加速器の加速効率を向
上させることができる。
[Operation] According to the present invention, even when the pattern of the cavity voltage Vc rises, which closed-loop control of the phase cannot follow, sufficient phase correction can be made, and the accelerated particles are removed from the circulating path of the accelerator. It becomes difficult to fall off, and the acceleration efficiency of the accelerator can be improved.

【0016】[0016]

【実施例】以下本発明の一実施例を、図5と同一部に同
一符号を付して示す図1及び図2を参照して説明する。 図1の励振装置の構成では従来例の図5と比較して、高
周波電力検出器25が追加されている。図2の移相器制
御器19の構成では、従来例では比例積分制御器26だ
けであったものに、位相変化補正値発生器27が追加さ
れている。以下本発明の作用について、図1及び図2を
参照して説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 and 2, in which the same parts as in FIG. 5 are denoted by the same reference numerals. In the configuration of the excitation device shown in FIG. 1, a high frequency power detector 25 is added compared to the conventional example shown in FIG. In the configuration of the phase shifter controller 19 shown in FIG. 2, a phase change correction value generator 27 is added in addition to the proportional-integral controller 26 in the conventional example. The operation of the present invention will be explained below with reference to FIGS. 1 and 2.

【0017】図1に示す方向性結合器17からの高周波
電力の検出信号P(rf)を高周波電力検出器25に入
力してキャビティに与えられている高周波電力を検出し
、その高周波電力検出信号Pを移相器制御器19に与え
るようにしている。
The high frequency power detection signal P(rf) from the directional coupler 17 shown in FIG. P is given to the phase shifter controller 19.

【0018】移相器制御器19にこの高周波電力検出信
号Pが入力されると、図2に示すように、位相変化補正
値発生器27に与えられる。この位相変化補正値発生器
27では高周波電力値の変化によって引き起こされる図
7に示す位相変化にたいして、図8に示すような位相変
化補正値が出力できるように予め定められている。この
位相変化補正値発生器27からの出力は、従来からの機
能である比例積分制御器26の出力と加算し、移相器制
御器19からの信号により、高周波電力の位相変化を補
正するように位相を調整する。この際、従来からの比例
積分制御器26による位相の閉ル―プ制御と比較して、
位相変化補正値発生器27による位相変化の補正の方が
、10倍以上応答速度が速くなる。従って、図6に示す
キャビティ電圧Vcの運転パタ―ンで立上りのところで
は主に位相変化補正値発生器27により、高周波電力の
位相変化を補正し、定常時には比例積分制御器26によ
る位相の閉ル―プ制御でさらに制度よく高周波電力の位
相変化を補正することかできる。このように、キャビテ
ィ電圧Vcの運転パタ―ンの立上り時に位相の閉ル―プ
制御での応答速度が追従できないような場合でも、十分
に高周波電力の位相補正をすることができる。
When this high frequency power detection signal P is input to the phase shifter controller 19, it is applied to a phase change correction value generator 27, as shown in FIG. This phase change correction value generator 27 is predetermined so that it can output a phase change correction value as shown in FIG. 8 in response to the phase change shown in FIG. 7 caused by a change in the high frequency power value. The output from the phase change correction value generator 27 is added to the output of the proportional-integral controller 26, which has a conventional function, and the signal from the phase shifter controller 19 is used to correct the phase change of the high frequency power. Adjust the phase to . At this time, compared to the conventional closed-loop control of the phase by the proportional-integral controller 26,
When the phase change is corrected by the phase change correction value generator 27, the response speed is ten times faster. Therefore, when the cavity voltage Vc rises in the operating pattern shown in FIG. Using loop control, it is possible to correct phase changes in high-frequency power with even greater accuracy. In this way, even if the response speed in the closed loop phase control cannot follow the rise of the operating pattern of the cavity voltage Vc, the phase of the high frequency power can be sufficiently corrected.

【0019】[0019]

【発明の効果】以上説明のように、本発明によれば、位
相の閉ル―プ制御で追従できないような速い立上りでキ
ャビティ電圧Vcを制御するような場合でも、十分に位
相補正ができるような加速器の高周波加速装置を提供す
ることができる。これにより加速器の加速効率を向上さ
せることができる。
[Effects of the Invention] As explained above, according to the present invention, even when the cavity voltage Vc is controlled with a fast rise that cannot be followed by phase closed loop control, sufficient phase correction can be performed. It is possible to provide a high frequency accelerator device for an accelerator. Thereby, the acceleration efficiency of the accelerator can be improved.

【図面の簡単な説明】[Brief explanation of the drawing]

【図1】本発明の一実施例を示す励振装置の構成を示す
ブロック図。
FIG. 1 is a block diagram showing the configuration of an excitation device showing an embodiment of the present invention.

【図2】[図1]の移相器制御器の詳細を示すブロック
図。
FIG. 2 is a block diagram showing details of the phase shifter controller of FIG. 1;

【図3】シンクロトロン加速器の構成を示す図。FIG. 3 is a diagram showing the configuration of a synchrotron accelerator.

【図4】従来の加速器の高周波加速装置の一例を示すブ
ロック図。
FIG. 4 is a block diagram showing an example of a conventional high-frequency accelerator device.

【図5】従来の励振装置の構成を示すブロック図。FIG. 5 is a block diagram showing the configuration of a conventional excitation device.

【図6】キャビティ電圧の運転パタ―ンの一例を示す特
性図、
[Fig. 6] Characteristic diagram showing an example of the operation pattern of cavity voltage,

【図7】位相補正をしないときのキャビティに与える高
周波電力値に対する位相変化を示した曲線図。
FIG. 7 is a curve diagram showing the phase change with respect to the high frequency power value applied to the cavity when no phase correction is performed.

【図8】[図2]の位相変化補正値発生器の入力である
高周波電力値に対する出力である位相変化補正値の関係
を示した特性図。
8 is a characteristic diagram showing the relationship between the phase change correction value that is the output and the high frequency power value that is the input of the phase change correction value generator in FIG. 2; FIG.

【符号の説明】[Explanation of symbols]

1…シンクロトロン加速器、2…ライナック、3…入射
器、4…偏向磁石、5…キャビティ、6…真空ビ―ムダ
クト、7…電力投入器、8…チュ―ナ―、9…プロ―ブ
、10…原発振器、11…励振装置、12…電力増幅器
、13…ダミ―ロ―ド、14…サ―キュレ―タ、15…
チュ―ナ―制御装置、16,17…方向性結合器、18
…位相差検出器、19…移移器制御器、20…移移器、
21…キャビティ電圧検出器、22…アッテネ―タ制御
器、23…アッテネ―タ、24…電力増幅器、25…高
周波電力検出器、26…比例積分制御器、27…移送変
化補正値発生器。
1... Synchrotron accelerator, 2... Linac, 3... Injector, 4... Bending magnet, 5... Cavity, 6... Vacuum beam duct, 7... Power input device, 8... Tuner, 9... Probe, DESCRIPTION OF SYMBOLS 10... Original oscillator, 11... Excitation device, 12... Power amplifier, 13... Dummy load, 14... Circulator, 15...
Tuner control device, 16, 17... Directional coupler, 18
...phase difference detector, 19...transfer controller, 20...transfer device,
21... Cavity voltage detector, 22... Attenuator controller, 23... Attenuator, 24... Power amplifier, 25... High frequency power detector, 26... Proportional integral controller, 27... Transfer change correction value generator.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】  キャビティ内部の高周波電圧を検出し
、その電圧検出値と基準電圧値を比較して前記キャビテ
ィに与える高周波電力の目標値を決定する閉ル―プ制御
系統と、前記キャビティに与える高周波電力の位相と、
原発振器の出力位相との差が一定となるように前記高周
波電力の位相を制御する位相制御ル―プ系を備えた加速
器の高周波加速装置において、前記キャビティに供給さ
れる高周波電力を検出する高周波電力検出器と、この検
出の出力を入力信号として印加され、前記キャビティに
与えられる高周波電力に対応して変化する位相変化を補
正する信号を発生する位相変化補正値発生器を設けたこ
とを特徴とする加速器の高周波加速装置。
1. A closed loop control system that detects a high frequency voltage inside a cavity and compares the detected voltage value with a reference voltage value to determine a target value of high frequency power to be applied to the cavity; The phase of high frequency power,
In a high frequency accelerator for an accelerator equipped with a phase control loop system that controls the phase of the high frequency power so that the difference with the output phase of the original oscillator is constant, a high frequency wave that detects the high frequency power supplied to the cavity is provided. A power detector, and a phase change correction value generator that receives the output of this detection as an input signal and generates a signal that corrects a phase change that changes in response to the high frequency power applied to the cavity. High frequency accelerator for accelerator.
JP8656391A 1991-04-18 1991-04-18 High frequency accelerating device for accelerator Pending JPH04319300A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8656391A JPH04319300A (en) 1991-04-18 1991-04-18 High frequency accelerating device for accelerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8656391A JPH04319300A (en) 1991-04-18 1991-04-18 High frequency accelerating device for accelerator

Publications (1)

Publication Number Publication Date
JPH04319300A true JPH04319300A (en) 1992-11-10

Family

ID=13890484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8656391A Pending JPH04319300A (en) 1991-04-18 1991-04-18 High frequency accelerating device for accelerator

Country Status (1)

Country Link
JP (1) JPH04319300A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000019785A3 (en) * 1998-09-29 2000-06-08 Gems Pet Systems Ab Device for rf control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000019785A3 (en) * 1998-09-29 2000-06-08 Gems Pet Systems Ab Device for rf control

Similar Documents

Publication Publication Date Title
KR20190126246A (en) Microwave output device and plasma processing apparatus
KR20000073788A (en) Optimal control method for Adaptive Feedforward Linear Amplifier
KR20200050676A (en) Automatic control apparatus and method for resonant frequency matching of linear electron accelerator for magnetron-based radiation therapy
Qiu et al. RF commissioning of the compact energy recovery linac superconducting cavities in pulse mode
JPH04319300A (en) High frequency accelerating device for accelerator
US5001437A (en) Electron storage ring
JP2685887B2 (en) Excitation control method of particle acceleration system by synchrotron accelerator
Simrock Achieving phase and amplitude stability in pulsed superconducting cavities
JP2511122B2 (en) Excitation control method for synchrotron accelerator
Cichalewski et al. Continuous wave operation of superconducting accelerating cavities with high loaded quality factor
JP2002237399A (en) Electron beam acceleration device and electron beam acceleration method
JPH04181700A (en) High-frequency accelerating device for accelerator
KR101930363B1 (en) The apparatus of medical linear accelerator and the method of that
JPH08172000A (en) High-frequency heating device for accelerator
JP3015669B2 (en) Charged particle accelerator
Schlarb et al. Beam based measurements of RF phase and amplitude stability at FLASH
KR101890329B1 (en) Optimization of the beam current in a linear accelerator by adjusting RF timing
JPH03226998A (en) Electromagnet power supply device
KR20090054703A (en) A method for controlling the radio-frequency accelerator
Li et al. Design of rapid tuning system for a ferrite-loaded cavity with heavy beam loading
JPH05326198A (en) Particle accelerator
JPH0652999A (en) High-frequency acceleration device of accelerator
JPH01307199A (en) Excitation controlling method for synchrotron accelerator
KR20200124160A (en) Method of determining correction function
Simrock et al. RF Control Strategy