| 束流均匀性测量前端读出电子学电路的设计 |
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| 引用本文： | 佘乾顺,苏弘,徐治国,马晓莉,胡正国,毛瑞士,徐瑚珊.束流均匀性测量前端读出电子学电路的设计[J].核电子学与探测技术,2011,31(6):646-651. |
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| 作者姓名： | 佘乾顺 苏弘 徐治国 马晓莉 胡正国 毛瑞士 徐瑚珊 |
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| 作者单位： | 中国科学院近代物理研究所,兰州,730000 |
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| 基金项目： | 中国科学院知识创新工程重要方向项目 |
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| 摘 要： | 针对重离子治癌中的束流监测需要,用T型反馈电阻网络组成的电流-电压转换(IVC)电路将大面积二维位置灵敏平行板雪崩探测器( PPAC)输出的多路10pA～100 nA的微弱电流转换成-2V～-20 mV的电压信号,配合数据获取处理系统实现了近代物理研究所重离子治癌中的束流均匀性测量.实验表明该电路具有速度快、精度高等优...
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| 关 键 词： | 束流均匀性 电流电压转换 T型反馈电阻网络 重离子治癌 |
A Circuit Design for Front- end Read- out Electronics of Beam Homogeneity Measurement |
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| SHE Qian-shun,SU Hong,XU Zhi-guo,MA Xiao-li,HU Zheng-guo,MAO Rui-shi,XU Hu-shan.A Circuit Design for Front- end Read- out Electronics of Beam Homogeneity Measurement[J].Nuclear Electronics & Detection Technology,2011,31(6):646-651. |
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| Authors: | SHE Qian-shun SU Hong XU Zhi-guo MA Xiao-li HU Zheng-guo MAO Rui-shi XU Hu-shan |
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| Affiliation: | SHE Qian-shun,SU Hong,XU Zhi-guo,MA Xiao-li,HU Zheng-guo,MAO Rui-shi,XU Hu-shan(Institute of Modern Physics,the Chinese Academy of Sciences,Lanzhou 730000,China) |
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| Abstract: | It introduces a circuit design of beam homogeneity measurement for heavy ion beam in the monitoring needs,which convert multichannel weak current from 10 pA to 100 nA of the output of parallel plate avalanche counter(PPAC) for large area with sensitive two-dimensional position to voltage signal from-2 V to-20 mV by current-voltage-convertor(IVC) circuit which composed of T-feedback resistor networks,combined with data acquisition and processing system realized the beam homogeneity measurement in heavy ion t... |
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| Keywords: | Beam homogeneity Current to voltage conversion T-feedback resistor network Heavy ion tumor therapy |
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