| 核实验数据获取系统中的触发信号预处理 |
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| 引用本文： | 张建川,王彦瑜,南钢洋,周文雄.核实验数据获取系统中的触发信号预处理[J].强激光与粒子束,2012,24(11):2727-2730. |
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| 作者姓名： | 张建川 王彦瑜 南钢洋 周文雄 |
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| 作者单位： | 1.中国科学院 近代物理研究所,兰州 730000; |
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| 基金项目： | HIRFL物理实验平台改造项目(0407060WHO) |
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| 摘 要： | 简要介绍了在核物理实验数据获取系统中，用FPGA芯片和VHDL语言实现对事件触发信号的预处理。阐述了在核物理实验数据获取系统中对事件触发信号的一般要求; 结合60Co伽马谱测量实验，介绍了基于一套自主研发的数据获取系统中触发信号的预处理，并给出了用VHDL语言实现该触发信号预处理的思想、仿真时序图和实验结果。该方法通过实验验证，证明切实可行，灵活性强。
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| 关 键 词： | 数据获取 触发信号 处理 FPGA |
| 收稿时间： | 2011/12/20 |
Trigger signal pre-processing in nuclear physics experiment data acquisition systems |
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| Zhang Jianchuan
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Wang Yanyu
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Nan Gangyang
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Zhou Wenxiong.Trigger signal pre-processing in nuclear physics experiment data acquisition systems[J].High Power Laser and Particle Beams,2012,24(11):2727-2730. |
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| Authors: | Zhang Jianchuan Wang Yanyu Nan Gangyang Zhou Wenxiong |
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| Affiliation: | 1.Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100039,China |
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| Abstract: | The realization of events trigger signal pre-processing in the nuclear physics experiment data acquisition system is briefly introduced, by using the FPGA (field-programmable gate array) chips and VHDL language. The general requirements of trigger signal processing in nuclear physics experiment are listed. The 60Co gamma spectra test experiment is introduced to detail these requirements. The trigger signal pre-processing in self-programming systems is presented. According to a given timing diagram, the trigger signal processing is realized with the VHDL language and FPGA technique. Through the actual waveform simulation and the experiments, this method is proved to be feasible and flexibility. This method can be of reference value for other data acquisition system trigger signal processing. |
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| Keywords: | data acquisition trigger signal processing field-programmable gate array |
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