Superiority of zoom lens coupling in designing a novel X-ray image detector

作     者：喻春雨 常本康 魏殿修 

作者机构：Key Laboratory of Integrated MicrosystemsShenzhen Graduate School of Peking UniversityShenzhen 518055 School of Optoelectronic and Electronic EngineeringNanjing University of Science and TechnologyNanjing 210094 

基　　金：the Nanjing Bureau of Science and Technology (No.200308005) the Jiangsu Office of Science and Technology (No.b2003001) 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2008年第6卷第7期

页      码：502-504页

摘      要：We design a novel X-ray image detector by lens coupling a Gd2O2S：Tb intensifying screen with a high performance low-light-level （L^3, which often means luminescence less than 10^-3 Lux） image intensifier. Different coupling effects on imaging performance between zoom lens and fix-focus lens are analyzed theoretically. In experiment, for designing a detector of 15-inch visual field, the system coupled by zoom lens is of 12.25-lp/cm resolution, while the one with fix-focus lens is 10 lp/cm. The superiority of zoom lens is validated. It is concluded that zoom lens preserves the image information better than fix-focus lens and improves the imaging system＇s performance in this design, which is referential to the design of other optical imaging systems.

主 题 词：Gadolinium Lenses X ray apparatus 

学科分类：0810[工学-土木类] 070207[070207] 07[理学] 08[工学] 080401[080401] 0804[工学-材料学] 080402[080402] 0835[0835] 081002[081002] 0803[工学-仪器类] 0702[理学-物理学类] 

核心收录：

D　O　I：10.3788/COL20080607.0502

馆 藏 号：203125541...