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Proceedings Paper

Computer simulation of photoelectron decay process of silver halide microcrystals
Author(s): Aicong Geng; Xiaowei Li; Guangsheng Fu; Shaopeng Yang; Xiaodong Lu
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Paper Abstract

Photoelectron plays an important role in latent image formation in silver halide materials, and its decay process is connected with the photographic process. Therefore, more details about the photoelectron decay behavior are needed in order to improve the photographic efficiency of imaging materials. In this paper, we use a single computer to simulate the photoelectron decay process in AgC1 microcrystals doped with [Fe(CN)6]4- that acts as shallow electron traps (SETs). First, we propose a model, which consists of a [Fe(CN)6]4- related SETs and intrinsic centers of pure AgC1 including two types of electron traps and a recombination center, where first a hole is trapped that then combines with a free photoelectron. The model results in a set of differential equations that describe the kinetics of generation, trapping, thermal detrapping and recombination processes. The decay process of the photoelectrons is simulated through solving these differential equations. In this simulation, the photoelectron decay curves, which fit well with experimental results, can be obtained quickly and accurately. With the aid of the simulation, the decay curves of the free photoelectron and the shallow-trapped electron are obtained accurately. A number of important conclusions about the SETs were drawn from the simulation study.

Paper Details

Date Published: 13 September 2002
PDF: 5 pages
Proc. SPIE 4922, Color Science and Imaging Technologies, (13 September 2002); doi: 10.1117/12.483122
Show Author Affiliations
Aicong Geng, Hebei Univ. (China)
Xiaowei Li, Hebei Univ. (China)
Guangsheng Fu, Hebei Univ. (China)
Shaopeng Yang, Hebei Univ. (China)
Xiaodong Lu, Hebei Univ. (China)

Published in SPIE Proceedings Vol. 4922:
Color Science and Imaging Technologies
Dazun Zhao; Ming Ronnier Luo; Kiyoharu Aizawa, Editor(s)

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