This paper reports the digital implementation of analog shaping amplifiers by digital pulse processing in gamma-ray spectroscopy. For digital implementation, a numerical algorithm was developed by referring to the semi-Gaussian filter of the analog shaping amplifier. In order to verify the developed algorithm, we evaluated the obtained energy spectrum and compared the energy resolution with the existing analog processing results. The gamma-ray detector used a double-sided strip detector, and the preamplifier signal of the detector was digitized directly by using a commercial digitizer. Using the standard gamma-ray sources Am-241 (59 keV), Ba-133 (81 keV), and Co-57 (122 keV), we were able to detect gamma rays in a relatively low energy region. The energy resolution was improved at energies below 100 keV compared to the result of treatment with an analog shaping amplifier.

中文翻译：

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用于双面硅条探测器 (DSSD) 的数字整形放大器的评估

本文报告了通过伽马射线光谱中的数字脉冲处理实现模拟整形放大器的数字化实现。对于数字实现，参考模拟整形放大器的半高斯滤波器开发了一种数值算法。为了验证开发的算法，我们评估了获得的能量谱，并将能量分辨率与现有的模拟处理结果进行了比较。伽马射线探测器采用双面条形探测器，探测器的前置放大器信号直接用商用数字化仪数字化。使用标准伽马射线源 Am-241 (59 keV)、Ba-133 (81 keV) 和 Co-57 (122 keV)，我们能够检测到能量相对较低的区域的伽马射线。