合肥国家同步辐射源X射线束时间相干长度的估算  

Study on Image Formation of Luminor Body by Lens

作　　者：陈建文[1] 徐至展[1] 肖体乔[1] 朱佩平[1] 陈敏[1] 谢行恕[2] 贾成芝[2] 徐向东 蒋诗平 单晓斌 傅绍军 

机构地区：[1]中国科学院上海光学精密机械研究所 [2]中国科学技术大学基础物理中心 [3]中国科学技术大学国家同步辐射实验室

出　　处：《光学学报》1997年第8期1135-1138,共4页Acta Optica Sinica

摘　　要：报道了合肥国家同步辐射实验室软Ｘ射线束的时间相干长度的理论估算、方法和实验结果。The image formation of luminor body by lens is studied using geometrical optics. Considering the contributions due to viewed cone centred on the object point and extending through the luminnor body, the distribution of intensity in the image plane can be expressed by the integration of emitted powers of luminor body over the entire sightline under the paraxial approximation. Then following results obtained: 1) the contribution of emitted power in any plane perpendicular to the sightline is all the same. 2) the relative level of the intensity fluctuations measured by detector is smaller than the true value due to the integration, but the emission fluctuations of luminor body can be reconstructed under some conditions.

关 键 词：软X射线 同步辐射 时间相干长度 

分 类 号：TL501[核科学技术—核技术及应用]