Feedback Suppression of β Oscillation in Injection of HLS

WANG Jun-Hua; GONG Ding; LIU Jian-Hong; ZHENG Kai; YANG Yong-Liang; SUN Bao-Gen; LU Ping

Chinese Physics C> 2004, Vol. 28> Issue(4) : 426-430

Feedback Suppression of β Oscillation in Injection of HLS

NSRL,University of Science and Technology of China,Hefei 230029,China

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Abstract：
In order to improve the accumulation of the injected beam, it is necessary to restrain β-oscillation because of injection system error. This paper systematically introduces the design principle and circuit of the feedback system for the injected β-oscillation suppression of HLS. It also provides the preliminary experimental results. As the proof of the theory and pre-study, we use a relatively simple analog filter and phase shifter to agitate the Kicker course, which causes the β-oscillation, and get the feedback, from which we see the obvious suppression effect. All of these are the foundation of feedback system of bunch-by-bunch and lower frequency in the future, which are for the research of transverse beam & lognitudinal beam instability.

References

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WANG Jun-Hua, GONG Ding, LIU Jian-Hong, ZHENG Kai, YANG Yong-Liang, SUN Bao-Gen and LU Ping. Feedback Suppression of β Oscillation in Injection of HLS[J]. Chinese Physics C, 2004, 28(4): 426-430.

WANG Jun-Hua, GONG Ding, LIU Jian-Hong, ZHENG Kai, YANG Yong-Liang, SUN Bao-Gen and LU Ping. Feedback Suppression of β Oscillation in Injection of HLS[J]. Chinese Physics C, 2004, 28(4): 426-430. shu

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Received: 2003-07-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Feedback Suppression of β Oscillation in Injection of HLS

Corresponding author: WANG Jun-Hua,

NSRL,University of Science and Technology of China,Hefei 230029,China

Received Date: 2003-07-01
Accepted Date: 1900-01-01
Available Online: 2004-04-05

Abstract: In order to improve the accumulation of the injected beam, it is necessary to restrain β-oscillation because of injection system error. This paper systematically introduces the design principle and circuit of the feedback system for the injected β-oscillation suppression of HLS. It also provides the preliminary experimental results. As the proof of the theory and pre-study, we use a relatively simple analog filter and phase shifter to agitate the Kicker course, which causes the β-oscillation, and get the feedback, from which we see the obvious suppression effect. All of these are the foundation of feedback system of bunch-by-bunch and lower frequency in the future, which are for the research of transverse beam & lognitudinal beam instability.