Year: 2020
Type: article
Abstract: This paper presents an absolute X-ray photon energy measurement method that uses a Bond diffractometer. The proposed system enables the prompt and rapid in situ measurement of photon energies over a wide energy range. The diffractometer uses a reference silicon single-crystal plate and a highly accurate angle encoder called SelfA. The performance of the system is evaluated by repeatedly measuring the energy of the first excited state of the potassium-40 nuclide. The excitation energy is determined as 29829.39 (6) eV, and this is one order of magnitude more accurate than the previous measurement. The estimated uncertainty of the photon energy measurement was 0.7 p.p.m. as a standard deviation and the maximum observed deviation was 2 p.p.m.
Source: Journal of Synchrotron Radiation
Authors: Takahiko Masuda, Tsukasa Watanabe, Kjeld Beeks, Hiroyuki Fujimoto, Takahiro Hiraki, Hiroyuki Kaino, Shinji Kitao, Yuki Miyamoto, Koichi Okai, Noboru Sasao, Makoto Seto, Thorsten Schumm, Yudai Shigekawa, Kenji Tamasaku, Satoshi Uetake, Atsushi Yamaguchi, Yoshitaka Yoda, Akihiro Yoshimi, Koji Yoshimura
Institutions: Okayama University, Research Institute for Interdisciplinary Science, Okayama University, National Institute of Advanced Industrial Science and Technology, TU Wien, Kyoto University, Institute for Integrated Radiation and Nuclear Science, Kyoto University, RIKEN, SPring-8, Japan Synchrotron Radiation Research Institute
Language: English
Subfield: Radiation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Awards: Quantum control of Th-229 isomer for study of gamma-ray laser, Elucidation of the nuclear decay property of Th-229m utilizing Ac-229, G434337789, Thorium nuclear clocks for fundamental tests of physics, G5473681008, Development of Th-doped crystal for the study of the isomeric state of the 229Th, ニュートリノ質量分光に向けた高次ＱＥＤ過程制御方法の研究, Study on thorium-229 Low-lying Isomer state and its application for fundamental physics, Observing the electron bridge process of the Th-229 isomer utilizing ion-molecule reactions, Precision laser spectroscopy of thorium-229 nuclear isomers approached by active isomer pumping method
OpenAlex ID: W3089338192