| 低气压多丝正比室及其在放射性束流实验中的应用 |
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| 引用本文： | 李智焕,陈陶,叶沿林,江栋兴,华辉,李湘庆,王全进,葛愉成,庞丹阳,狄振宇,谭继廉,张金霞,凤盈,张保国,肖志刚,王宏伟,吴和宇,靳根明.低气压多丝正比室及其在放射性束流实验中的应用[J].中国物理 C,2002,26(9):964-970. |
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| 作者姓名： | 李智焕 陈陶 叶沿林 江栋兴 华辉 李湘庆 王全进 葛愉成 庞丹阳 狄振宇 谭继廉 张金霞 凤盈 张保国 肖志刚 王宏伟 吴和宇 靳根明 |
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| 作者单位： | [1]北京大学物理学院技术物理系，北京100871 [2]中国科学院近代物理研究所，兰州730000 |
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| 基金项目： | 国家重点基础研究发展规划项目(G2000077400)和2000年教育部优秀青年教师项目资助 |
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| 摘 要： | 介绍了为在放射性束流线上开展精确的散射和反应实验中,对入射束流的角度和有效数目等进行在线监测而设计制造的低气压多丝正比室.它透射性好,不干扰束流,并方便在真空环境中工作.测量表明,它的位置分辨率约0.5mm.对20—30MeV/u的低Z的放射性束流有着大于90%的位置探测效率,适用于中能次级束实验靶前的束流定位及在线监测,也可用在靶后测量出射带电粒子的角度.
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| 关 键 词： | 低气压多丝正比室 位置分辨 位置探测效率 |
| 收稿时间： | 2001-10-30 |
Low Pressure Multiwire Proportional Chamber and Its Application to Radioactive Ion Beam Experiment |
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| LI Zhi,Huan\ CHEN Tao\ YE Yan,Lin\ JIANG Dong,Xing\ HUA Hui\ LI Xiang,Qing,WANG Quan,Jin\ GE Yu,Cheng\ PANG Dan,Yang\ DI Zhen,Yu.Low Pressure Multiwire Proportional Chamber and Its Application to Radioactive Ion Beam Experiment[J].High Energy Physics and Nuclear Physics,2002,26(9):964-970. |
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| Authors: | LI Zhi Huan\ CHEN Tao\ YE Yan Lin\ JIANG Dong Xing\ HUA Hui\ LI Xiang Qing WANG Quan Jin\ GE Yu Cheng\ PANG Dan Yang\ DI Zhen Yu |
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| Abstract: | Radioactive ion beam is generally characterized by small beam intensity and big beam size. In order to carry on precise scattering and reaction experiments it is necessary to monitoring the incident angle and absolute number of the beam hitting the target. We therefore have designed and made up low pressure multiwire proportional chambers (LPMWPC) which have good beam transparency and are also adequate to be used in vacuum. Experiment test indicates that the position resolution of the chambers is about 0.5mm and the position determination efficiency is larger than 90% for the low Z particles at intermediate energies. This kind of chamber can then be used to detect the direction of the incident particle and to record the absolute number of the particles which really hit the target, or to detect the emitting angle of the outgoing particles. |
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| Keywords: | LPMWPC position resolution position determination efficiency |
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