Calibration of Turn-by-Turn System of HLS and Its Application

WANG Jun-Hua; LIU Jian-Hong; SUN Bao-Gen; LI Wei-Min; LIU Zu-Ping; YANG Yong-Liang

Chinese Physics C> 2004, Vol. 28> Issue(5) : 544-548

Calibration of Turn-by-Turn System of HLS and Its Application

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

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Abstract：
In this paper, the turn-by-turn system of Hefei Light Source (HLS), and the log-ratio electronics circuit with working frequence 408MHz (2*RF of HLS) are described. They are used to monitor the injection effectiveness, damping rate, β oscillation and v variation for research the instability of beam. The Log-ratio signal processor has low noise, high bandwidth and wide dynamic range, as well as linear response. The calibration of the system and its application in commissioning of the upgraded injection system of HLS is emphases. The practice proves the turn-by-turn BPM system is quite useful for the beam-injection adjusting and indispensable for machine research.

References

[1]

. WANG Jun-Hua et al. HEP NP, 2002, 26 ( 6) : 632-638(in Chi nese)(王筠华等.高能物理与核物理,2002,26(6):632—638) 2. WANG Jun-Hua, SUN Bao-Geng, LI Jing-Yi et al. High Power Laser and Particle Beams, 2003, 15(8) : 825 - 829(in Chinese)(王筠华,孙葆根,李京等.强激光与粒子束,2003,15(8):825—829) 3. Shaf er R E. Log-Ratio Signal-Processing Technique for Beam PositionMonit ors, AIP conf. Proc. ( 1993) : 120 .. 1284. Aiello G Roberto. Log-Ratio Technique for Beam Position Monitor Systems, AIP Conf . Proc. ( 1993) : 301-3105. WANG Jun-Hua, LI Wei-Min, SUN Bao-Geng et al. High Power Laser and Particle Beams, 2002, 14( 4) : 485 - 488(in Chinese)(王筠华,李为民,孙葆根等.强激光与粒子束,2002,14(4):825—829)6. BERGOZ Instrumentation Company from France, Log-ratio Beam Position Monitor User's Manual7. Shang Lei. The Physics Design and the Vacuum Duct Development of Ceramic Coat for New Injection System of HLS. Hefei: Doctor Thesis of USTC, October 1999 (in Chinese)(尚雷.HLS新注入系统的物理和陶瓷喷涂真空室的研制.合肥:中国科学技术大学博士论文,1999.10)

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WANG Jun-Hua, LIU Jian-Hong, SUN Bao-Gen, LI Wei-Min, LIU Zu-Ping and YANG Yong-Liang. Calibration of Turn-by-Turn System of HLS and Its Application[J]. Chinese Physics C, 2004, 28(5): 544-548.

WANG Jun-Hua, LIU Jian-Hong, SUN Bao-Gen, LI Wei-Min, LIU Zu-Ping and YANG Yong-Liang. Calibration of Turn-by-Turn System of HLS and Its Application[J]. Chinese Physics C, 2004, 28(5): 544-548. shu

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

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