南京理工大学电子信息工程与光电技术学院,江苏,南京,210094
纸质出版:2008
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何伟基, 陈 钱, 徐 融, 等. 基于Z域变换的CCM电荷传输模型研究[J]. 电子学报, 2008,36(6):1140-1143.
HE Wei-ji, CHEN Qian, XU Rong, et al. Research on Model of Charge Delivering in CCM Based on Z Transform[J]. Acta Electronica Sinica, 2008, 36(6): 1140-1143.
分析了EMCCD的结构特征及载流子倍增寄存器利用碰撞电离实现电荷倍增的原理
建立了一种基于离散系统Z域变换的CCM电荷传输模型.该模型描述了在CCM电荷传输的电荷转移损失和电荷倍增过程.利用该模型的电荷传输的传递函数
本文推导了CCM电荷传输幅频响应的计算表达式并结合CCM的典型参数进行了数值计算.计算结果与实验观察表明随着电荷倍增率越大
CCM电荷传输的幅频响应改善越明显.
A model describes both of charge lose and charge multiplication when charge delivering in CCM based on Z transform
which relates to the architecture of EMCCD and the theory of CCM that using impact ionization to multiply photo-generated charge was proposed here.From transfer function of charge delivering in CCM
the amplitude-frequency response was obtained as well as its numerical values with the typical parameters of a CCM.Numerical values and experimental results show that the higher the charge multiplication ratio in CCM
the better improvement the amplitude-frequency response of CCM gets.
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