强激光与粒子束2012，Vol.24Issue(9)：2230-2234,5.DOI:10.3788/HPLPB20122409.2230
成像板伽马图像测量研究
Imaging plates applied to gamma-ray image measurement
摘要
Abstract
Basic principles and physical mechanism of image measurement by using imaging plates (IPs) are studied in this paper, and fundamental problems about applications of the IPs in gamma-ray image measurement are also analyzed. Monte Carlo models of imaging plates in common use are built, involving three types of IPs, i. e. MS, SR, TR. And the energy deposition of gamma rays of different energies in the IPs are calculated through the MCNPX code and the NPE code based on a Geant4 platform. As a result, the energy deposition of SR-type and MS-type IPs is 3-5 times larger than that of TR-type IPs in the low energy part, and 7-9 times larger in the high energy part. The theoretical and experimental results of the relation between gamma-ray sensitivity of MS-type IPs and copper foil thickness agree well with each other. The spatial resolution of IPs in gamma-ray imaging is better than 50 μm.关键词
成像板/伽马图像/蒙特卡罗模拟/灵敏度Key words
imaging plates/ gamma-ray image/ Monte Carlo simulation/ sensitivity分类
能源科技引用本文复制引用
付澜,张建华,祁建敏,章法强,谢红卫,陈进川..成像板伽马图像测量研究[J].强激光与粒子束,2012,24(9):2230-2234,5.基金项目
中国工程物理研究院科学技术基金项目(2011B0103017) （2011B0103017）
中国工程物理研究院青年科学基金项目(11005095) （11005095）
