北京同步辐射装置4B7B软X射线标定束线的性能研究及应用  

Characteristic Study and Application of the Soft X-Ray Beam Line 4B7B on BSRF

作　　者：易荣清[1] 赵屹东[2] 王秋平[3] 郑雷[2] 杨家敏[1] 何小安[1] 李朝光[1] 江少恩[1] 丁永坤[1] 崔明启[2] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900 [2]中国科学院高能物理研究所,北京100049 [3]中国科技大学国家同步辐射实验室,安徽合肥230029

出　　处：《光学学报》2014年第10期345-350,共6页Acta Optica Sinica

摘　　要：描述了在北京同步辐射装置(BSRF)4B7B软X射线上,通过多种方法进行高次谐波抑制,采用复合滤片消除高能区低能X射线等性能改进方法使光源的高次谐波含量小于1%、能量分辨优于3000,无杂散光。在4B7B光束线上开展了X射线探测器(XRD)灵敏度、平面镜反射率和滤片透射率的标定方法研究,XRD灵敏度标定不确定度优于3%,平面镜反射率标定不确定度小于3.5%,滤片透射率标定不确定度优于1%。This subject improves light source capability of the soft X-ray beam line 4B7B on the Beijing synchrotron radiation facility （BSRF） by restraining the low energy X-ray in high energy range and the higher-harmonics wave in every energy point. This light source has harmonics wave less than 1%, energy resolution of more than 3000. Some researches on calibration of X-ray detector （XRD） sensitivity, mirror reflectivity, filter transmittance on the soft X-ray beam line 4B7B are performed. The results show that the uncertainty of XRD sensitivity is less than 3 %, the uncertainty of mirror reflectivity is less than 3.5 %, and the uncertainty of filter transmittance is less than 1%.

关 键 词：X射线光学 同步辐射 标定 不确定度 

分 类 号：TN247[电子电信—物理电子学] O536[理学—等离子体物理]