Absolute X-ray energy measurement using a high-accuracy angle encoder
Instrumentation and Detectors
2020-12-25 v1 Nuclear Experiment
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 in a wide energy range. The diffractometer uses a reference silicon single crystal plate and a highly accurate angle encoder called SelfA. We evaluate the performance of the system 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. It is one order of magnitude more precise than the previous measurement. The estimated uncertainty of the photon energy measurement was 0.7 ppm as a standard deviation and the maximum observed deviation was 2 ppm.
Cite
@article{arxiv.2010.00953,
title = {Absolute X-ray energy measurement using a high-accuracy angle encoder},
author = {Takahiko Masuda and Tsukasa Watanabe and Kjeld Beeks and Hiroyuki Fujimoto and Takahiro Hiraki and Hiroyuki Kaino and Shinji Kitao and Yuki Miyamoto and Koichi Okai and Noboru Sasao and Makoto Seto and Thorsten Schumm and Yudai Shigekawa and Kenji Tamasaku and Satoshi Uetake and Atsushi Yamaguchi and Yoshitaka Yoda and Akihiro Yoshimi and Koji Yoshimura},
journal= {arXiv preprint arXiv:2010.00953},
year = {2020}
}