X‐ray beam‐position feedback system with easy‐to‐use beam‐position monitor |
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Authors: | Jae Yeon Park Yesul Kim Sangsul Lee Jun Lim |
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Institution: | 1. ITCC, Pohang Light Source, Jigokro 127, Pohang37673, Republic of Korea;2. Soft Matter Physics Laboratory, School of Advanced Materials Science and Engineering, SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon16419, Republic of Korea |
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Abstract: | X‐ray beam‐position stability is indispensable in cutting‐edge experiments using synchrotron radiation. Here, for the first time, a beam‐position feedback system is presented that utilizes an easy‐to‐use X‐ray beam‐position monitor incorporating a diamond‐fluorescence screen. The acceptable range of the monitor is above 500 µm and the feedback system maintains the beam position within 3 µm. In addition to being inexpensive, the system has two key advantages: it works without a scale factor for position calibration, and it has no dependence on X‐ray energy, X‐ray intensity, beam size or beam shape. |
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Keywords: | X‐ray beam‐position monitor diamond‐fluorescence screen feedback system |
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