α-particle spectrometer based on xenon gas ionization chamber using coplanar electrodes

N. Hasebe, M. Miyajima, E. Shibamura, A. Hitachi, M. Naito, K. Murakami, H. Kusano, J. A. Matias-Lopes, V. V. Dmitrenko

研究成果: Article査読

抄録

A parallel plate gas ionization chamber with coplanar electrodes was designed and developed to be used as an α-particle spectrometer measuring low level α-emission rates in environmental samples from the vicinity of nuclear power plants. The chamber was filled with a 3 atm gas mixture of Xe + 0.7% CH 4 . Its performance was investigated using a mixed α-particle source ( 237 Np, 241 Am, and 244 Cm). An excellent energy resolution of 59 keV (1.0%) in fwhm for 5.81 MeV 244 Cm α-particles was obtained, which is enough to identify major sources of alpha radioisotopes ( 238 U, 235 U, 237 Np, 239 Pu, 238 Pu, 241 Am, 244 Cm) to be found near nuclear power plants.

本文言語English
ページ(範囲)123-127
ページ数5
ジャーナルNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
925
DOI
出版ステータスPublished - 2019 5 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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