TY - GEN
T1 - Development of a surface alpha ray detector based on μ-TPC with low background
AU - Ito, H.
AU - Hashimoto, T.
AU - Ikeda, T.
AU - Ishiura, H.
AU - Miuchi, K.
AU - Nakamura, K. D.
AU - Takeuchi, Y.
AU - Kobayashi, K.
N1 - Funding Information:
Manuscript received December 15, 2018. This work was supported in part by JSPS KAKENHI Grant Number 26104004 and 26104008. We thank to provide us a helium-gas leak checker for Dr. Y. Nakano in ICRR, University of Tokyo, Japan.
Funding Information:
This work was supported in part by JSPS KAKENHI Grant Number 26104004 and 26104008. We thank to provide us a helium-gas leak checker for Dr. Y. Nakano in ICRR, University of Tokyo, Japan.
Publisher Copyright:
© 2018 IEEE.
PY - 2018/11
Y1 - 2018/11
N2 - Radioactive impurities in the detector material have been focused as the serious background in a search for a dark matter. In order to select a pure material which have a low radioactive impurity such as nuclear in uranium-chain and thorium-chain, a precise measurement of radioactivity has been required. A new alpha-ray detector has been developed based on a gaseous μ-TPC. A low-α μ-PIC was installed to the detector for low background measurement. The detector has advantages of a position sensitivity and a ability to take sample and background event on a same time. We performed to calibrate the energy, to evaluate resolution using an alpha-ray source, to inspect a sample as a part of a conventional μ-PIC as a demonstration.
AB - Radioactive impurities in the detector material have been focused as the serious background in a search for a dark matter. In order to select a pure material which have a low radioactive impurity such as nuclear in uranium-chain and thorium-chain, a precise measurement of radioactivity has been required. A new alpha-ray detector has been developed based on a gaseous μ-TPC. A low-α μ-PIC was installed to the detector for low background measurement. The detector has advantages of a position sensitivity and a ability to take sample and background event on a same time. We performed to calibrate the energy, to evaluate resolution using an alpha-ray source, to inspect a sample as a part of a conventional μ-PIC as a demonstration.
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U2 - 10.1109/NSSMIC.2018.8824606
DO - 10.1109/NSSMIC.2018.8824606
M3 - Conference contribution
AN - SCOPUS:85073115207
T3 - 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2018 - Proceedings
BT - 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2018
Y2 - 10 November 2018 through 17 November 2018
ER -