JPH0353499A - High frequency control device for accelerator - Google Patents
High frequency control device for acceleratorInfo
- Publication number
- JPH0353499A JPH0353499A JP18595389A JP18595389A JPH0353499A JP H0353499 A JPH0353499 A JP H0353499A JP 18595389 A JP18595389 A JP 18595389A JP 18595389 A JP18595389 A JP 18595389A JP H0353499 A JPH0353499 A JP H0353499A
- Authority
- JP
- Japan
- Prior art keywords
- high frequency
- power source
- signal
- frequency power
- monitor
- 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
- 230000001133 acceleration Effects 0.000 claims abstract description 9
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
Landscapes
- Particle Accelerators (AREA)
Abstract
Description
【発明の詳細な説明】 ［発明の目的〕 （産業上の利用分野） 本発明は加速器の高周波制御装置に関する。[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a high frequency control device for an accelerator.
（従来の技術）
加速器の高周波電源には高精度で制御するため、出力を
モニターしてフィードバック制御を行っている電源があ
る。第３図にフィードバック制御を行っている高周波系
を示す。高周波電［１から高周波加速空胴２への出力ラ
イン３とモニタ４から電源１へのフィードバック信号ラ
イン５のアース側が一周の閉ループを形成する。(Prior Art) Some high-frequency power supplies for accelerators monitor output and perform feedback control in order to control with high precision. Fig. 3 shows a high frequency system that performs feedback control. The output line 3 from the high-frequency electric power source 1 to the high-frequency acceleration cavity 2 and the ground side of the feedback signal line 5 from the monitor 4 to the power source 1 form a closed loop.
（発明が解決しようとする課題）
加速器のシステム内には、高圧のパルス電源、高周波電
源、サイリスタ電源などのノイズ発生源が多い。またシ
ステムの規模が大きいため、ループが大きくなる。した
がってこのフィードバックルーブ系で誘導ノイズをひろ
いやすい。一般にはノイズ対策のためループを形成しな
いようにするのが原則であるが、フィードバック系では
ループを形成せざるをえない。(Problems to be Solved by the Invention) There are many noise sources in an accelerator system, such as a high-voltage pulse power source, a high-frequency power source, and a thyristor power source. Furthermore, since the scale of the system is large, the loop becomes large. Therefore, it is easy to detect induced noise in this feedback loop system. In general, the principle is to avoid forming loops to prevent noise, but in feedback systems, loops must be formed.
本発明の目的は、加速器の高周波系のフィードバック制
御ループの信号ラインに絶縁する部分を設け、閉ループ
を形成しないようにして、耐ノイズ性能を改善すること
にある。An object of the present invention is to improve noise resistance by providing an insulating portion in a signal line of a feedback control loop of a high frequency system of an accelerator to prevent the formation of a closed loop.
［発明の構成］
（課題を解決するための手段）
上記目的を達成するために、本発明においては第１図の
ように、モニターからの信号を現場にてＡ／Ｄ変換して
絶縁したのちデジタルで、高周波電源にフィードバック
する。[Structure of the invention] (Means for solving the problem) In order to achieve the above object, in the present invention, as shown in FIG. Digitally feeds back to the high frequency power supply.
（作 用）
これにより高周波電源から高周波加速空胴への出力信号
ラインとモニタから高周波電源へのフィードバック信号
ラインとで、一周の閉ループを形成しないようにできる
。(Function) This prevents the formation of a single closed loop between the output signal line from the high frequency power source to the high frequency acceleration cavity and the feedback signal line from the monitor to the high frequency power source.
（実施例）
以下本発明を重イオンシンクロトロンの高周波電源の制
御系に適用した場合を例にとり実施例を示す。(Example) An example will be described below, taking as an example the case where the present invention is applied to a control system of a high frequency power source of a heavy ion synchrotron.
第２図は構成図である。高周波電源のローレベル１ｌか
ら出力されたＲＦ信号は同軸ケーブルの出力ライン３に
より高周波アンブ８に伝送され、増幅された後高周波加
速空胴２に印加される。FIG. 2 is a configuration diagram. The RF signal output from the low level 1l of the high frequency power supply is transmitted to the high frequency amplifier 8 via the output line 3 of the coaxial cable, amplified, and then applied to the high frequency acceleration cavity 2.
重イオンのシンクロトロンではビームの位置と位相をフ
ィードバックして発信周波数に補正をかける。アンブ８
と加速空胴２とビームモニタ４のアース側がつながって
いるので、アナログ信号で同軸ケーブルにてフィードバ
ック信号を伝送すると閉ループを形成する。そこで本発
明では、モニタ４のアナログ信号をＡ／Ｄ変換器６でデ
ジタル信号に変換した後、フォトカブラー９で絶縁して
ローレベルｌ１に伝送する。このようにして一周の閉ル
ープを形成することをふせぐ。In a heavy ion synchrotron, the beam position and phase are fed back to correct the transmission frequency. Anbu 8
Since the acceleration cavity 2 and the ground side of the beam monitor 4 are connected, a closed loop is formed when a feedback signal is transmitted as an analog signal using a coaxial cable. Therefore, in the present invention, the analog signal of the monitor 4 is converted into a digital signal by the A/D converter 6, and then insulated by the photocoupler 9 and transmitted to the low level l1. In this way, the formation of a single round closed loop is prevented.
［発明の効果］
本発明によれば、加速器の高周波系のフィードバック制
御回路中に信号ケーブルを絶縁する部分を設けるので閉
ループを形成せず、誘導ノイズに強い装置にできる。[Effects of the Invention] According to the present invention, since a portion for insulating the signal cable is provided in the feedback control circuit of the high frequency system of the accelerator, a closed loop is not formed, and the device can be made resistant to induced noise.
第１図は本発明の基本的な構成を示す回路図、第２図は
本発明の実施例の回路図、第３図は従来の装置の回路図
である。
１・・・高周波電ｆｆ７Ｘ２・・・高周波加速空胴３・
・・出力ライン ４・・・モニタ５・・・フィード
バック信号ライン
６・・・ＡＤ変換器 ７・・・絶縁９・・・フォト
カプラFIG. 1 is a circuit diagram showing the basic configuration of the present invention, FIG. 2 is a circuit diagram of an embodiment of the present invention, and FIG. 3 is a circuit diagram of a conventional device. 1... High frequency electric ff7X2... High frequency acceleration cavity 3.
・・Output line 4・・Monitor 5・・Feedback signal line 6・・AD converter 7・・Insulation 9・・Photocoupler
Claims (1)
ドバックする信号ラインに信号をデジタル化するＡＤ変
換器と絶縁部をもうけた加速器の高周波制御装置。A high-frequency control device for an accelerator that includes an AD converter that digitizes signals and an insulating section on a signal line that feeds back signals from a monitor of a high-frequency acceleration cavity to a high-frequency power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18595389A JPH0353499A (en) | 1989-07-20 | 1989-07-20 | High frequency control device for accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18595389A JPH0353499A (en) | 1989-07-20 | 1989-07-20 | High frequency control device for accelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0353499A true JPH0353499A (en) | 1991-03-07 |
Family
ID=16179765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18595389A Pending JPH0353499A (en) | 1989-07-20 | 1989-07-20 | High frequency control device for accelerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0353499A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010153205A (en) * | 2008-12-25 | 2010-07-08 | Mitsubishi Electric Corp | Particle accelerator |
-
1989
- 1989-07-20 JP JP18595389A patent/JPH0353499A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010153205A (en) * | 2008-12-25 | 2010-07-08 | Mitsubishi Electric Corp | Particle accelerator |
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