Physics and Engineering Physics, University of Saskatchewan, 116 Science Place, Saskatoon, SK S7N5E2, Canada.
Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439, USA.
J Synchrotron Radiat. 2019 Nov 1;26(Pt 6):1863-1871. doi: 10.1107/S1600577519010658. Epub 2019 Sep 11.
The recently developed vertical phase-space beam position and size monitor (ps-BPM) system has proven to be able to measure the electron-source position, angle, size and divergence simultaneously in the vertical plane at a single location of a beamline. The optimization of the ps-BPM system is performed by ray-tracing simulation to maximize the instrument sensitivity and resolution. The contribution of each element is studied, including the monochromator, the K-edge filter, the detector and the source-to-detector distance. An optimized system is proposed for diffraction-limited storage rings, such as the Advanced Photon Source Upgrade project. The simulation results show that the ps-BPM system can precisely monitor the source position and angle at high speed. Precise measurements of the source size and divergence will require adequate resolution with relatively longer integration time.
最近开发的垂直相空间束位置和尺寸监测器（ps-BPM）系统已被证明能够在光束线的单个位置同时测量电子源在垂直平面中的位置、角度、尺寸和发散度。通过光线追踪模拟对 ps-BPM 系统进行了优化，以最大限度地提高仪器的灵敏度和分辨率。研究了每个元件的贡献，包括单色仪、K 边滤光片、探测器和源到探测器的距离。为衍射极限储存环提出了一种优化系统，例如高级光子源升级项目。模拟结果表明，ps-BPM 系统可以高速精确地监测源位置和角度。要精确测量源尺寸和发散度，需要具有相对较长积分时间的适当分辨率。
