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ID 55447
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Masuda, Takahiko Research Institute for Interdisciplinary Science, Okayama University
Okubo, S. Graduate School of Natural Science and Technology, Okayama University
Hara, H. Research Institute for Interdisciplinary Science, Okayama University
Hiraki, T. Research Institute for Interdisciplinary Science, Okayama University
Kitao, S. Research Reactor Institute, Kyoto University
Miyamoto, Y. Research Institute for Interdisciplinary Science, Okayama University
Okai, K. Graduate School of Natural Science and Technology, Okayama University
Ozaki, R. Graduate School of Natural Science and Technology, Okayama University
Sasao, N. Research Institute for Interdisciplinary Science, Okayama University
Seto, M. Research Reactor Institute, Kyoto University
Uetake, S. Research Institute for Interdisciplinary Science, Okayama University
Yamaguchi, A. Quantum Metrology Laboratory, RIKEN
Yoda, Y. Japan Synchrotron Radiation Research Institute
Yoshimi, A. Research Institute for Interdisciplinary Science, Okayama University
Yoshimura, K. Research Institute for Interdisciplinary Science, Okayama University
Abstract
We developed a fast X-ray detector system for nuclear resonant scattering (NRS) experiments. Our system employs silicon avalanche photo-diode (Si-APD) as a fast X-ray sensor. The system is able to acquire both timing and energy of a single X-ray photon simultaneously in a high rate condition, 106 counts per second for one Si-APD. The performance of the system was investigated in SPring-8, a synchrotron radiation facility in Japan. Good time resolution of 120 ps (FWHM) was achieved with a slight tail distribution in the time spectrum by a level of 10-9 at 1 ns apart from the peak. Using this system, we successfully observed the NRS from the 26.27-keV level of mercury-201, which has a half-life of 630(50) ps. We also demonstrated the reduction of background events caused by radioactive decays in a radioactive sample by discriminating photon energy.
Note
This is an Accepted Manuscript of an article published by AIP Publishing
Published Date
2017-06
Publication Title
Review of Scientific Instruments
Volume
volume88
Issue
issue6
Publisher
American Institute Of Physics
Start Page
063105
ISSN
0034-6748
NCID
AA00817730
Content Type
Journal Article
language
英語
OAI-PMH Set
岡山大学
Copyright Holders
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.ja
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isVersionOf https://doi.org/10.1063/1.4989405