Research and Measurement of BPM System at HLS LINAC

LI Ji-Hao; SUN Bao-Gen; HE Duo-Hui; LIU Gong-Fa; LU Ping; CAO Yong

Chinese Physics C> 2007, Vol. 31> Issue(1) : 96-100

Research and Measurement of BPM System at HLS LINAC

National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China

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Abstract：
BPM system newly designed at HLS Linac has been installed and applied in beam based experiments. This paper introduces the structure of BPM system, signal processing module, mapping results and measurement results of beam based experiment. The BPM system has a dynamic range of not less than 40dBm, beam position resolution of less than 100μm, horizontal sensitivity of 1.61dB/mm and vertical sensitivity of 1.51dB/mm. The results of experiment between corrector strength and BPM shows that the newly designed BPM system can acquire the beam positions information correctly, and the horizontal and vertical correction coefficients of the correctors are 0.46mm/A and 0.58mm/A respectively, and the horizontal and vertical beam positions at BPM are 0.83mm and －0.57mm respectively with the default value of correctors.

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LI Ji-Hao, SUN Bao-Gen, HE Duo-Hui, LIU Gong-Fa, LU Ping and CAO Yong. Research and Measurement of BPM System at HLS LINAC[J]. Chinese Physics C, 2007, 31(1): 96-100.

LI Ji-Hao, SUN Bao-Gen, HE Duo-Hui, LIU Gong-Fa, LU Ping and CAO Yong. Research and Measurement of BPM System at HLS LINAC[J]. Chinese Physics C, 2007, 31(1): 96-100. shu

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Received: 2006-03-20
Revised: 2006-04-14

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沈阳化工大学材料科学与工程学院沈阳 110142

Research and Measurement of BPM System at HLS LINAC

Corresponding author: LI Ji-Hao,

National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China

Received Date: 2006-03-20
Accepted Date: 2006-04-14
Available Online: 2007-01-05

Abstract: BPM system newly designed at HLS Linac has been installed and applied in beam based experiments. This paper introduces the structure of BPM system, signal processing module, mapping results and measurement results of beam based experiment. The BPM system has a dynamic range of not less than 40dBm, beam position resolution of less than 100μm, horizontal sensitivity of 1.61dB/mm and vertical sensitivity of 1.51dB/mm. The results of experiment between corrector strength and BPM shows that the newly designed BPM system can acquire the beam positions information correctly, and the horizontal and vertical correction coefficients of the correctors are 0.46mm/A and 0.58mm/A respectively, and the horizontal and vertical beam positions at BPM are 0.83mm and －0.57mm respectively with the default value of correctors.