Gas Cherenkov Detector Calibration Correction for Small Angle GDH Experiment in Hall-A

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LV Hai-Jiang, YAN Xin-Hu, YE Yun-Xiu, JIANG Yi, ZHANG Pei and YE Qiu-Jian. Gas Cherenkov Detector Calibration Correction for Small Angle GDH Experiment in Hall-A[J]. Chinese Physics C, 2007, 31(5): 492-495.
LV Hai-Jiang, YAN Xin-Hu, YE Yun-Xiu, JIANG Yi, ZHANG Pei and YE Qiu-Jian. Gas Cherenkov Detector Calibration Correction for Small Angle GDH Experiment in Hall-A[J]. Chinese Physics C, 2007, 31(5): 492-495. shu
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Received: 2006-10-16
Revised: 2006-11-21
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Gas Cherenkov Detector Calibration Correction for Small Angle GDH Experiment in Hall-A

    Corresponding author: LV Hai-Jiang,
  • Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China2 Department of Physics, Huangshan University, Huangshan, Anhui 245021, China

Abstract: Due to the change of the hardware and high voltage during the small angle GDH experiment data-takeing, the CO2 gas threshold Cherenkov detector on HRS at Hall-A in Jefferson Jlab(JLab) was calibrated for seven times. The ADC signals of the single photo-electron peak for all ten PMTs were scaled to two hundred. The electrons could be separated from π by the detector after the calibration correction.

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