Diamond sensors for hard X-ray energy and position resolving measurements at the European XFEL

被引:0
作者
Yildiz, Tuba Conka [1 ]
Freund, Wolfgang [1 ]
Liu, Jia [1 ]
Schreck, Matthias [2 ]
Khakhulin, Dmitry [1 ]
Yousef, Hazem [1 ]
Milne, Christopher [1 ]
Gruenert, Jan [1 ]
机构
[1] European XFEL, Holzkoppel 4, D-22869 Schenefeld, Germany
[2] Univ Augsburg, Inst Phys, Univ Str 1, D-86159 Augsburg, Germany
关键词
diamond sensor; diamond detector; scCVD diamond; electronic-grade diamond; photon diagnostics; X-ray free-electron lasers; pulse resolved; DETECTORS;
D O I
10.1107/S1600577524006015
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The diagnostics of X-ray beam properties has a critical importance at the European X-ray Free-Electron Laser facility. Besides existing diagnostic components, utilization of a diamond sensor was proposed to achieve radiation-hard, non-invasive beam position and pulse energy measurements for hard X-rays. In particular, with very hard X-rays, diamond-based sensors become a useful complement to gas-based devices which lose sensitivity due to significantly reduced gas cross-sections. The measurements presented in this work were performed with diamond sensors consisting of an electronic-grade single-crystal chemical-vapor-deposition diamond with position-sensitive resistive electrodes in a duo-lateral configuration. The results show that the diamond sensor delivers pulse-resolved X-ray beam position data at 2.25 MHz with an uncertainty of less than 1% of the beam size. To our knowledge this is the first demonstration of pulse-resolved position measurements at the MHz rate using a transmissive diamond sensor at a free-electron laser facility. It can therefore be a valuable tool for X-ray free-electron lasers, especially for high-repetition-rate machines, enabling applications such as beam-based alignment and intra-pulse-train position feedback.
引用
收藏
页码:1029 / 1036
页数:8
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