Upgrade of the X-ray pinhole camera system at SSRF

被引：3
|
作者：
Gao, Bo [1 ,2 ]
Leng, Yong-Bin [1 ,2 ]
Chen, Han-Jiao [1 ,2 ]
Chen, Jie [1 ]
Ye, Kai-Rong [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
NUCLEAR SCIENCE AND TECHNIQUES | 2018年 / 29卷 / 08期
基金：
美国国家科学基金会;
关键词：
X-ray pinhole camera; Transverse beam size; Diagnostic beam line; Point spread function; X-ray quasimonochromator;
D O I：
10.1007/s41365-018-0444-7
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
An X-ray pinhole camera has been used to determine the transverse beam size and emittance on the diagnostic beam line of the storage ring at SSRF since 2009. The performance of the beam size measurement is determined by the width of the point spread function of the X-ray pinhole camera. Beam-based calibration was carried in 2012 out by varying the beam size at the source point and measuring the image size. However, this calibration method requires special beam conditions. In order to overcome this limitation, the pinhole camera was upgraded and an X-ray quasi-monochromator was installed. A novel experimental method was introduced by combining the pinhole camera with the monochromator to calibrate the point spread function. The point spread function can be accurately resolved by adjusting the angle of the monochromator and measuring the image size. The X-ray spectrum can also be obtained. In this work, the X-ray quasi-monochromator and the novel beam-based calibration method will be presented in detail.
引用
收藏
页数：9
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