論文

2021年7月

Nondestructive Quantitative Analysis of Difficult-to-Measure Radionuclides Pd-107 and Tc-99

ANALYTICAL CHEMISTRY
  • Yosuke Toh
  • ,
  • Mariko Segawa
  • ,
  • Makoto Maeda
  • ,
  • Masayuki Tsuneyama
  • ,
  • Atsushi Kimura
  • ,
  • Shoji Nakamura
  • ,
  • Shunsuke Endo
  • ,
  • Mitsuru Ebihara

93
28
開始ページ
9771
終了ページ
9777
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/acs.analchem.1c01233
出版者・発行元
AMER CHEMICAL SOC

Considering the expanding demand for nuclear waste management of the spent nuclear fuel materials in near future, a nondestructive analytical scheme applicable to one of the most difficult-to-measure nuclides Pd-107, which emits no decay gamma-rays and whose half-life is too long to be decayed out during a human lifetime, was designed. The scheme consists of a sophisticated instrument capable of the detection of gamma-rays by Ge detectors coupled with time-of-flight measurement of neutrons and a high-intensity pulsed neutron beam and can simultaneously perform time-of-flight-coupled prompt gamma-ray analysis (TOF-PGA) as well as PGA and neutron resonance capture analysis (NRCA). The analytical capability for simulated samples of the Tc-platinum group metals (Tc-PGMs) obtained by the group-partitioning process of spent nuclear fuels, which contain not only Pd-107 but also Tc-99 and other difficult-to-measure fission products, was evaluated. It was confirmed that although PGA and NRCA can accurately analyze both nuclides in individual, single substances, only TOF-PGA can analyze Pd-107 as well as Tc-99 in the Tc-PGM-simulated sample. The TOF-PGA measurement technique can be widely used for the nondestructive analysis of Pd-107 and Tc-99 in nuclear wastes.

リンク情報
DOI
https://doi.org/10.1021/acs.analchem.1c01233
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000677481700015&DestApp=WOS_CPL
ID情報
  • DOI : 10.1021/acs.analchem.1c01233
  • ISSN : 0003-2700
  • eISSN : 1520-6882
  • Web of Science ID : WOS:000677481700015

エクスポート
BibTeX RIS