Diamond sensors for hard X-ray energy and position resolving measurements at the European XFEL
Journal of Synchrotron Radiation, cilt.31, sa.Pt 5, ss.1029-1036, 2024 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 31 Sayı: Pt 5
- Basım Tarihi: 2024
- Doi Numarası: 10.1107/s1600577524006015
- Dergi Adı: Journal of Synchrotron Radiation
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, MEDLINE, Metadex, Directory of Open Access Journals, Civil Engineering Abstracts
- Sayfa Sayıları: ss.1029-1036
- Anahtar Kelimeler: diamond detector, diamond sensor, electronic-grade diamond, photon diagnostics, pulse resolved, scCVD diamond, X-ray free-electron lasers
- Marmara Üniversitesi Adresli: Hayır
Özet
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.