18 August 2011 Study on transient noise of CCD camera induced by γ-ray
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In this paper, based on the mechanism of CCD camera, an event-based simulation method of γ-ray-induced transient noise was developed, which applying MCNP5 Code based on Monte Carlo methods. On the mono-energy γ-ray sources, the transient noises of two different CCD cameras have been measured at different doses (from 0.001mR to 1mR) and different incidence angles. The 60Co and 137Cs were used as the mono-energy γ-ray sources, and the Compton Scattering technique were adopted to get lower energy γ-ray sources. In order to get the pure transient noise induced by γ-ray, a method was advanced for extracting the transient noise from the image mixed the background noise. And the transient noise was characterized, including the number of noise clusters, the noise intensity spectrum and the size spectrum of noise clusters. The variation characteristics of noise have been draw from the simulation and experiment, which induced by γ-rays of different dose, or different energy or different incidence angle.
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Bao-jun Duan, Bao-jun Duan, Dong-wei Hei, Dong-wei Hei, Gu-zhou Song, Gu-zhou Song, Ji-ming Ma, Ji-ming Ma, Zhan-hong Zhang, Zhan-hong Zhang, Chang-cai Han, Chang-cai Han, Yan Song, Yan Song, Ming Zhou, Ming Zhou, Lan Lei, Lan Lei, } "Study on transient noise of CCD camera induced by γ-ray", Proc. SPIE 8194, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, 81943D (18 August 2011); doi: 10.1117/12.901769; https://doi.org/10.1117/12.901769

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