Aspects of Resolution Degradation in a Nuclear Pulse Analyzer System
Aspects of Resolution Degradation in a Nuclear Pulse Analyzer System
复制标题
核脉冲分析仪系统中分辨率下降的方面
DOI：
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发表时间：
1968
期刊：
影响因子：
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通讯作者：
K. Hatch
中科院分区：
文献类型：
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作者：
K. Hatch
讨论了低计数率和高计数率下分辨率下降的常见原因。以前的工作提出了信号/噪声与整形网络的约翰逊噪声和1/f2噪声。方程推导出这里包括l/f噪声，这是显着的。结果给出了不同整形网络的峰值高度变化与输入上升时间的关系。对于高计数率，需要一个具有长时间常数的计数器和基线恢复器的使用进行了讨论。文中介绍了一种恢复器和死区时间门电路，并沿着给出了实验结果。
Common causes of resolution degradation are discussed for low and high count rates. Previous works have presented signal/noise versus shaping networks for Johnson noise and 1/f2 noise. Equations are derived here to include l/f noise, which is found to be significant. Results are presented for peak-height change versus input rise time for different shaping networks. For high count rates, the need for an amplifierwithlongtime constants and the use of a baseline restorer are discussed. A restorer and deadtime gating circuits are presented, along with experimental results.