饱和模式下微通道板输出电子云的Monte-Carlo仿真（英文）
发布时间：2019-03-03 17:42
【摘要】：当基于微通道板(MCP)的光电探测器受到强辐射干扰时,MCP的饱和将导致探测器的时间分辨率和空间分辨率发生改变.本文建立了饱和工作状态下MCP电子云运动仿真模型,与常规的线性工作状态的不同之处在于,该模型考虑了MCP通道壁上累积的正电荷对通道内电子云运动特性的影响.仿真结果表明,当MCP工作在线性状态,电极浸入深度的不同对通道电子云能量分布有很大差异,而工作在饱和状态,通道电子云能量分布趋于一致.电子能量分布曲线与相关文献的实验数据拟合良好,验证了模型的正确性.
[Abstract]:When the photodetector based on microchannel plate (MCP) is disturbed by strong radiation, the saturation of MCP will cause the temporal resolution and spatial resolution of the detector to change. In this paper, the motion simulation model of MCP electron cloud in saturated state is established. The difference between the model and the conventional linear operation state is that the model takes into account the effect of positive charge accumulated on the wall of MCP channel on the motion characteristics of electron cloud in the channel. The simulation results show that when the MCP is in linear state, the energy distribution of the channel electron cloud varies greatly when the electrode immersion depth is different, while the energy distribution of the channel electron cloud tends to be consistent in the saturated state. The electron energy distribution curve fitted well with the experimental data in the related literature, which verified the correctness of the model.
【作者单位】： 电子工程学院脉冲功率激光技术国家重点实验室;
【基金】：National Science Foundation for Young Scientists of China(No.41605015) State KeyLaboratory of Pulsed Power Laser Technology Funds(No.SKL2016ZR06)
【分类号】：TN15
，
本文编号：2433949
[Abstract]:When the photodetector based on microchannel plate (MCP) is disturbed by strong radiation, the saturation of MCP will cause the temporal resolution and spatial resolution of the detector to change. In this paper, the motion simulation model of MCP electron cloud in saturated state is established. The difference between the model and the conventional linear operation state is that the model takes into account the effect of positive charge accumulated on the wall of MCP channel on the motion characteristics of electron cloud in the channel. The simulation results show that when the MCP is in linear state, the energy distribution of the channel electron cloud varies greatly when the electrode immersion depth is different, while the energy distribution of the channel electron cloud tends to be consistent in the saturated state. The electron energy distribution curve fitted well with the experimental data in the related literature, which verified the correctness of the model.
【作者单位】： 电子工程学院脉冲功率激光技术国家重点实验室;
【基金】：National Science Foundation for Young Scientists of China(No.41605015) State KeyLaboratory of Pulsed Power Laser Technology Funds(No.SKL2016ZR06)
【分类号】：TN15
，
本文编号：2433949
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