TY - JOUR
T1 - α-particle spectrometer based on xenon gas ionization chamber using coplanar electrodes
AU - Hasebe, N.
AU - Miyajima, M.
AU - Shibamura, E.
AU - Hitachi, A.
AU - Naito, M.
AU - Murakami, K.
AU - Kusano, H.
AU - Matias-Lopes, J. A.
AU - Dmitrenko, V. V.
N1 - Funding Information:
This work was in part supported by JSPS KAKENHI Grant-in-Aid for Challenging Exploratory Research Number 26600136 and JKA promotion funds from KEIRIN RACE Grant Number 26-136 and Waseda University Grant for Special Research Projects 2018B-182 .
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/5/1
Y1 - 2019/5/1
N2 - 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.
AB - 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.
KW - Coplanar electrode
KW - Xenon gas ionization chamber
KW - α-ray spectrometer
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U2 - 10.1016/j.nima.2019.01.079
DO - 10.1016/j.nima.2019.01.079
M3 - Article
AN - SCOPUS:85061350531
SN - 0168-9002
VL - 925
SP - 123
EP - 127
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ER -