强激光与粒子束2011，Vol.23Issue(9)：2275-2276,2.DOI:10.3788/HPLPB20112309.2275
Z箍缩装置的单色背光成像
Monochromatic backlight imaging on Z-pinch facility
摘要
Abstract
An X-ray backlight imaging system using spherically bent crystal has been sei up based on the X-ray Bragg diffraction theory. The primary component of the system is a spherically bent a-quartz crystal whose curvature radius is 143 mm. The monochromatic X-ray backlight imaging experiment using the imaging system has been carried out on the anode accelerator of Institute of Fluid Physics, China Academy of Engineering Physics(CAEP). In the experiment, the backlighter is a laser-produced plasma X-ray source created using Al wire arrays implosion; the test object is stainless steel wires of diameter of 100 fim and period of 500 μm; the X-ray film is used to obtain the two-dimensional monochromatic X-ray backlight images. The imaging system provides a spatial resolution of approximately 75 ,im. It can be predicated that the backlight image obtained by employing Al filter has a relatively small signal-to-noise ratio, for Al filter absorbs the X-ray spectrum of the Al plasma He-like radiation.关键词
球面弯曲晶体/布拉格衍射/X射线诊断/空间分辨力Key words
spherically bent crystals/ Bragg diffraction/ X-ray diagnosis/ spatial resolution分类
数理科学引用本文复制引用
刘利锋,肖沙里,钱家渝,刘慎业,韦敏习,陈伯伦..Z箍缩装置的单色背光成像[J].强激光与粒子束,2011,23(9):2275-2276,2.基金项目
国家自然科学基金委员会-中国工程物理研究院联合基金项日(10976033) （10976033）
中央高校基本科研业务费项目(CDJXS11122219) （CDJXS11122219）
