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BESⅢCsI晶体量能器设计中的优化

Optimization in the Design of BESⅢ CsI Crystal Calorimeter

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【作者】 刘春秀傅成栋周莉张勤俭夏小米赖元芬李金方建陈沅蔡啸尚雷王曼吕军光王贻芳

【Author】 LIU Chun-Xiu 1) FU Cheng-Dong ZHOU Li ZHANG Qin-Jian XIA Xiao-Mi LAI Yuan-Fen LI Jin FANG Jian CHEN Yuan CAI Xiao SHANG Lei WANG Man L Jun-Guang WANG Yi-Fang (Institute of High Energy Physics, CAS, Beijing 100039, China)

【机构】 中国科学院高能物理研究所中国科学院高能物理研究所 北京100039北京100039北京100039

【摘要】 在BESⅢ晶体量能器的设计、研制过程中 ,对其性能进行蒙特卡罗研究 ,从而优化设计方案 .

【Abstract】 In the process of design and research of BESⅢ crystal calorimeter we study its performance by Monte Carlo simulation and then optimize the scheme. Those results show that the the following scheme is optimized. CsI crystals typically have a front face of about 5×5cm 2 and a rear face of about 6.5×6.5cm 2, and the length of all crystals is 28cm. The crystals are supported by four iron screws fixed at the rear end. All crystals point to the collision point with a small tilt of 1°—3° in the θand 1.5° in the . Then we obtain that the energy resolution is about 2.1髎 and the position resolution about 6mm for 1GeV photon.

【基金】 国家杰出青年科学基金 ( 10 2 2 5 5 2 4)资助~~
  • 【文献出处】 高能物理与核物理 ,High Energy Physics and Nuclear Physics , 编辑部邮箱 ,2003年12期
  • 【分类号】TH89
  • 【被引频次】4
  • 【下载频次】51
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