Transmission-mode diamond white-beam position monitor at NSLS.
Transmission-mode diamond white-beam position monitor at NSLS.
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DOI：
10.1107/s0909049512005043
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发表时间：
2012-05
影响因子：
2.5
通讯作者：
E. Muller;J. Smedley;J. Bohon;Xi Yang;M. Gaowei;John Skinner;G. de Geronimo;M. Sullivan;M. Allaire;J. Keister;L. Berman;A. Héroux
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文献类型：
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作者：
E. Muller;J. Smedley;J. Bohon;Xi Yang;M. Gaowei;John Skinner;G. de Geronimo;M. Sullivan;M. Allaire;J. Keister;L. Berman;A. Héroux
本文介绍了安装在国家同步辐射光源（NSLS）X25光束线上的两台透射式金刚石X射线光束位置监测器。每个金刚石光束位置监测器围绕两个水平平铺的电子级（p.p.b.氮杂质）单晶（001）CVD合成金刚石。该系统可以真实的监测白色X射线束的位置、角度和通量，对于3 mm × 1 mm的光束，其水平方向的位置分辨率为500 nm，垂直方向的位置分辨率为100 nm。第一个金刚石光束位置监测器已经在白色光束中运行了一年多，没有任何可观察到的性能下降。大约六个月后，安装了第二个更紧凑的金刚石光束位置监测器，增加了测量光子束角轨迹的能力。
Two transmission-mode diamond X-ray beam position monitors installed at National Synchrotron Light Source (NSLS) beamline X25 are described. Each diamond beam position monitor is constructed around two horizontally tiled electronic-grade (p.p.b. nitrogen impurity) single-crystal (001) CVD synthetic diamonds. The position, angle and flux of the white X-ray beam can be monitored in real time with a position resolution of 500 nm in the horizontal direction and 100 nm in the vertical direction for a 3 mm × 1 mm beam. The first diamond beam position monitor has been in operation in the white beam for more than one year without any observable degradation in performance. The installation of a second, more compact, diamond beam position monitor followed about six months later, adding the ability to measure the angular trajectory of the photon beam.