【摘要】 讨论了电荷收集时间对梯形成形效果的影响,统计方法及削减电荷收集时间效应的方法。应用实际测得的梯形脉宽来反推电荷收集时间,所得结果与实际情况符合较好。对⁶⁰Co放射源进行能谱测试,⁶⁰Co的两个特征峰的能量分辨率分别为1.9 keV和2.0 keV,验证了幅度提取校正对提高系统能量分辨率的效果。更多还原

【Abstract】 The effect of charge collection time on the trapezoidal shaping effect, statistical methods and methods to reduce the time effect of charge collection are discussed. The relationship between charge collection time and trapezoidal shaping pulse width is found by theoretical derivation. The calculation formula of charge collection time and the method of amplitude extraction correction are given. The actual trapezoidal pulse width was used to reverse the charge collection time, and the results were found to be in good agreement with the actual situation. The energy spectrum of the ⁶⁰Co source was tested. The energy resolutions of the two characteristic peaks of ⁶⁰Co were 1.9 keV and 2.0 keV, respectively, which verified the effect of amplitude extraction correction on improving energy resolution.更多还原