論文

査読有り
2018年2月8日

Nuclear resonant scattering experiment with fast time response: Photonuclear excitation of Hg 201

Physical Review C
  • A. Yoshimi
  • H. Hara
  • T. Hiraki
  • Y. Kasamatsu
  • S. Kitao
  • Y. Kobayashi
  • K. Konashi
  • R. Masuda
  • T. Masuda
  • Y. Miyamoto
  • K. Okai
  • S. Okubo
  • R. Ozaki
  • N. Sasao
  • O. Sato
  • M. Seto
  • T. Schumm
  • Y. Shigekawa
  • S. Stellmer
  • K. Suzuki
  • S. Uetake
  • M. Watanabe
  • A. Yamaguchi
  • Y. Yasuda
  • Y. Yoda
  • K. Yoshimura
  • M. Yoshimura
  • 全て表示

97
2
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevC.97.024607
出版者・発行元
American Physical Society

Nuclear resonant excitation and detection of its decay signal for the 26.27-keV level of Hg201 is demonstrated with high-brilliance synchrotron radiation (SR) and a fast x-ray detector system. This SR-based photonuclear excitation scheme, known as nuclear resonant scattering (NRS) in the field of materials science, is also useful for investigating nuclear properties, such as the half-lives and radiative widths of excited nuclear levels. To date, because of the limited time response of the x-ray detector, the nuclear levels to which this method could be applied have been limited to the one whose half-lives are longer than ∼1 ns. The faster time response of the NRS measurement makes possible NRS experiments on nuclear levels with much shorter half-lives. We have fabricated an x-ray detector system that has a time resolution of 56 ps and a shorter tail function than that reported previously. With the implemented detector system, the NRS signal of the 26.27-keV state of Hg201 could be clearly discriminated from the electronic scattering signal at an elapsed time of 1 ns after the SR pulse. The half-life of the state was determined as 629 ± 18 ps, which has better precision by a factor of three compared with that reported to date obtained from nuclear decay spectroscopy.

リンク情報
DOI
https://doi.org/10.1103/PhysRevC.97.024607
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000424503200003&DestApp=WOS_CPL
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85042069932&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85042069932&origin=inward
ID情報
  • DOI : 10.1103/PhysRevC.97.024607
  • ISSN : 2469-9993
  • ISSN : 2469-9985
  • eISSN : 2469-9993
  • SCOPUS ID : 85042069932
  • Web of Science ID : WOS:000424503200003

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