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Accurate measurements of high energy proton beam by secondary electron compensation

Xia Hai-Hong Zhang Zhong-Bing Ouyang Xiao-Ping Chen Liang Wang Qun-Shu Wang Lan Ma Yan-Liang Pan Hong-Bo Liu Lin-Yue

Accurate measurements of high energy proton beam by secondary electron compensation

Xia Hai-Hong, Zhang Zhong-Bing, Ouyang Xiao-Ping, Chen Liang, Wang Qun-Shu, Wang Lan, Ma Yan-Liang, Pan Hong-Bo, Liu Lin-Yue
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  • Received Date:  24 August 2009
  • Accepted Date:  23 November 2009
  • Published Online:  05 April 2010

Accurate measurements of high energy proton beam by secondary electron compensation

  • 1. (1)China Institute of Atomic Energy,Beijing 102413,China; (2)Northwest Institute of Nuclear Technology,Xian 710024,China

Abstract: Accuracy in the measurement of an intense high-energy proton beam is generally disturbed by high energy proton induced secondary electron emission. In the present work,the compensation mechanism for secondary electron emission is investigated for the accurate measurement of high-energy proton beam. An experimental approach with using three metal foils to compensate for secondary electron emission is implemented and described. The experiment is carried out on the HI-13 tandem accelerator. The current detected from the middle metal foil is 0.7% of the proton beam. The experimental results show that the measured current of the high-energy proton beam is reliable within 1%.

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