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Journal of University of Science and Technology of China ›› 2011, Vol. 41 ›› Issue (10): 878-882.DOI: 10.3969/j.issn.0253-2778.2011.10.006

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Beam current calibration for Coulomb sum rule experiment in JLab Hall-A

YAN Xinhu   

  1. 1.Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China; 2.Department of Physics, Huangshan University, Huangshan 245021, China
  • Received:2010-12-05 Revised:2011-02-17 Online:2011-10-31 Published:2011-10-31
  • Contact: YE Yunxiu
  • About author:YAN Xinhu, male, born in 1977, Phd. Research field: high energy physics. E-mail: yanxinhu@mail.ustc.edu.cn

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Abstract: To obtain the cross section of electron scattering on different cryogenic targets (2H, 4He, 2C, 56Fe, 208Pb) for the Coulomb sum rule (CSR) measurement in JLab Hall-A, the beam current monitor (BCM) was calibrated more reliable than before at different current settings (02, 05, 1, 2, 5, 10, 20, 40, 60 μA) to determine the beam charge precisely at different kinematic settings.

Key words: Coulomb sum rule, BCM calibration, beam charge

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