【摘要】 作为一种高灵敏度的图像传感器,电子倍增CCD(EMCCD)在微光成像领域应用前景非常广泛。详细分析了其噪声来源,重点讨论EMCCD相比普通科学级CCD特有的乱真电荷和噪声因子,计算信噪比。在噪声来源和信噪比分析过程中提出驱动波形优化设计方法,为成像系统电子学部分设计提供理论参考。更多还原

【Abstract】 As an ultra sensitive image sensor,Electronic Multiplying CCD(EMCCD) has a huge potential in the low-light-level imaging area.This paper fully analysed the noise sources,mainly discussed two extra sources – Spurious Charge and Excess Noise Factor,and calculated the SNR of EMCCD.During the analysis of the noise sources and SNR,some optimized driver clock design methods were suggested,which could be a reference to the electronic system design of EMCCD imaging system.更多还原