Within the frame of this work, a user-friendly MATLAB program for the simulation of signals and electronic noise at the nuclear radiation readout system was developed. Signal and noise in terms of equivalent noise charge (ENC) have been evaluated. Five noise sources were considered in order to have high simulation accuracy. The role and influence of different parameters of the readout circuits on the output signal and noise were predicted and illustrated. Moreover, the effect of all elementary parameters of each noise source on the ENC was taken into consideration. Since the energy resolution is affected by the electronic noise expressed by ENC, the obtained simulation results help to select the most feasible concept and parameters for a real system having a minimal noise effect. Using the program, several examples of the effect of those parameters on different ENC contributions related to the noise sources have been analyzed and discussed in detail. A comparison between the simulated results and experimental data was conducted.

在这项工作的框架内，开发了一个用户友好的 MATLAB 程序，用于模拟核辐射读出系统的信号和电子噪声。已对等效噪声电荷 (ENC) 方面的信号和噪声进行了评估。为了获得高仿真精度，考虑了五个噪声源。预测并说明了读出电路的不同参数对输出信号和噪声的作用和影响。此外，还考虑了每个噪声源的所有基本参数对 ENC 的影响。由于能量分辨率受到ENC表示的电子噪声的影响，因此获得的仿真结果有助于为具有最小噪声影响的实际系统选择最可行的概念和参数。使用该程序，详细分析和讨论了这些参数对与噪声源相关的不同 ENC 贡献的影响的几个示例。对模拟结果和实验数据进行了比较。