2019年5月1日
α-particle spectrometer based on xenon gas ionization chamber using coplanar electrodes
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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- 巻
- 925
- 号
- 開始ページ
- 123
- 終了ページ
- 127
- 記述言語
- 掲載種別
- 研究論文（学術雑誌）
- DOI
- 10.1016/j.nima.2019.01.079
© 2019 Elsevier B.V. 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.
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