Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2005, Vol. 16 ›› Issue (5): 257

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Strip line beam position monitor for HLS LINAC

LI Ji-Hao*, SUN Bao-Gen, HE Duo-Hui, LU Ping, WANG Yong, WANG Jun-Hua, JIN Kai, CAO Yong. ZHENG Pu   

  1. NSRL, University of Science and Technology of China, Heifei 230025
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LI Ji-Hao, SUN Bao-Gen, HE Duo-Hui, LU Ping, WANG Yong, WANG Jun-Hua, JIN Kai, CAO Yong. ZHENG Pu. Strip line beam position monitor for HLS LINAC.Nuclear Science and Techniques, 2005, 16(5): 257

Abstract: The parameters of beam transverse positions at HLS 200 MeV LINAC are very important to injection efficiency. We have designed a new non-interceptive strip line beam position monitor (BPM) as a substifution for the original interceptive fluorescent target. This paper gives out the theoretical analysis and bench test result of the strip line BPM. The BPM has a characteristic impedance of (50±5)Ω, a reflection coefficient of less than —4 dB, a bandwidth of 400 MHz. a coupling coefficient of less than -15 dB, and a sensitivity of 1.16 dB/mm. Additionally, the strip line BPM has a good linearity.

Key words: Beam position monitor, Strip line, Reflection, Coupling, Sensitivity