基于NSRL衍射和散射站的单次反射毛细管聚焦研究  

Study on Single-bounced Capillary Focus Based on NSRL X-ray Diffraction and Scattering Station

作　　者：陈香存[1,2] 李锐鹏[1,2] 刘科[1,2] 吴利徽[1,2] 盛六四[1,2] 潘国强[1,2] 

机构地区：[1]中国科学技术大学核科学与技术学院,安徽合肥230029 [2]中国科学技术大学国家同步辐射实验室,安徽合肥230029

出　　处：《核电子学与探测技术》2010年第9期1150-1155,共6页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金(10490192)

摘　　要：介绍了国家同步辐射实验室X射线衍射和散射光束线实验站,利用单次反射毛细管对X射线衍射和散射站的光束进行聚焦,经毛细管聚焦后焦点处的光斑直径为125μm,光强增大约两倍。利用Mar345成像板分别采集了使用和未使用毛细管聚焦的光束下的溶菌酶蛋白晶体的衍射图样,结果表明,使用经过毛细管聚焦的光束时,每副衍射图样的曝光时间可缩短一半,提高了收集衍射图谱的效率。The X-ray diffraction and scattering station of NSRL（National Synchrotron Radiation Laboratory） is introduced.The X-ray Diffraction and Scattering beamline is focused by Single-Bounced capillary,beam diameter D=125 μm was obtained at the focal point,and we have 2 times intensity more than the usual time.To test the capillary in the real＇ crystallorgraphy experiments,we collected diffraction images for lysozyme crystal with and without capillary by mar345 Image Plate Detector.The results show that exposure time can be shortened by half with the capillary,the efficiency of the collection images has been improved.

关 键 词：同步辐射 单次反射毛细管 X射线 聚焦 

分 类 号：TL544[核科学技术—核技术及应用]