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Chinese Physics C> 2005, Vol. 29> Issue(11) : 1071-1076 

Studies on Angular Resolution of Lead-Scintillating Fiber Electro-Magnetic Calorimeter

  •  Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, CAS, Beijing 100049, China

  • Analyzing methods on the angular resolution of lead-scintillating fiber electromagnetic calorimeter are studied. The space resolution function, which is used to calculate weights,is extracted from Monte-Carlo simulation. Better angular resolution was obtained from the beam test data of AMS ECAL in 2002 at CERN, when the space resolution function was used in the fit. Different ways to calculate the centers of gravity,to choose the layers to fit the incidence direction are also discussed.
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    [1] . Battiston R et al. Astropart. Phys., 2000, 13: 51-742. TANG Xiao-Wei. Methods of Particle Physics Experi-ments. Beijing: People's Education Press, 1982(in Chinese)(唐孝威.粒广物理实验方法.北京:人民教育出版社，1982)3. LI Zu-Hao et al. HEP NP, 2004, 28: 521(in Chinese)(李祖豪等.高能物理与核物理，2004, 28: 521)4. LI Zu-Hao et al. HEP NP, 2004, 28: 1188(in Chinese)(李祖豪等.高能物理与核物理，2004, 28: 1188)5. YANG Zhao-Yu et al. HEP NP, 2004, 28: 1086(in Chinese)(杨曌,等.高能物理与核物理，2004, 28: 1086)6. Application Software Group. CERN Computing and Net-works Division. GEANT Detector Description and Simula-tion Tool. 1993

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WANG Xiao-Bin, CHEN Guo-Ming, LI Zu-Hao, CHEN Gang, YANG Ming, YANG Zhao-Yu, ZHANG Shao-He, LU Yu-Sheng and CHEN He-Sheng. Studies on Angular Resolution of Lead-Scintillating Fiber Electro-Magnetic Calorimeter[J]. Chinese Physics C, 2005, 29(11): 1071-1076.
WANG Xiao-Bin, CHEN Guo-Ming, LI Zu-Hao, CHEN Gang, YANG Ming, YANG Zhao-Yu, ZHANG Shao-He, LU Yu-Sheng and CHEN He-Sheng. Studies on Angular Resolution of Lead-Scintillating Fiber Electro-Magnetic Calorimeter[J]. Chinese Physics C, 2005, 29(11): 1071-1076. shu
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Received: 2005-03-30
Revised: 1900-01-01
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Studies on Angular Resolution of Lead-Scintillating Fiber Electro-Magnetic Calorimeter

    Corresponding author: WANG Xiao-Bin,
  • Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, CAS, Beijing 100049, China
  • Received Date: 2005-03-30
  • Accepted Date: 1900-01-01
  • Available Online: 2005-11-05

Abstract: Analyzing methods on the angular resolution of lead-scintillating fiber electromagnetic calorimeter are studied. The space resolution function, which is used to calculate weights,is extracted from Monte-Carlo simulation. Better angular resolution was obtained from the beam test data of AMS ECAL in 2002 at CERN, when the space resolution function was used in the fit. Different ways to calculate the centers of gravity,to choose the layers to fit the incidence direction are also discussed.

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