Development of a multi-segmented proportional gas counter for β-decay spectroscopy at KISS

M. Mukai; Y. Hirayama; P. Schury; Y. X. Watanabe; M. Ahmed; H. Haba; H. Ishiyama; S. C. Jeong; Y. Kakiguchi; S. Kimura; J. Y. Moon; M. Oyaizu; A. Ozawa; J. H. Park; H. Ueno; M. Wada; H. Miyatake

doi:10.1016/j.nimb.2019.04.036

Development of a multi-segmented proportional gas counter for β-decay spectroscopy at KISS

M. Mukai, Y. Hirayama, P. Schury, Y. X. Watanabe, M. Ahmed, H. Haba, H. Ishiyama, S. C. Jeong, Y. Kakiguchi, S. Kimura, J. Y. Moon, M. Oyaizu, A. Ozawa, J. H. Park, H. Ueno, M. Wada, H. Miyatake

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2 Scopus citations

Abstract

We developed a multi-segmented proportional gas counter to perform β-decay spectroscopy of neutron-rich nuclei extracted from KEK Isotope Separation System (KISS). The 32 segmented gas counters allow us two-dimensional tracking of the events to identify β-ray events by discriminating background events. The detectors being by low-density material of thin aluminized Mylar foils and P10 gas enabled us to detect low energy electrons down to 100 keV. The absolute detection efficiency was 45% at Q_β=1 MeV, and the measured background event rate was 0.11 cps. The detector was applied to perform β-decay spectroscopy and hyperfine structure measurements of neutron-rich isotopes of Pt, Ir, and Os. We started to develop the gas counter with three-dimensional tracking by replacing the material of anode wire from BeCu to resistive thin carbon to reduce the background event rate below 0.01 cps.

Original language	English
Pages (from-to)	421-424
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	463
DOIs	https://doi.org/10.1016/j.nimb.2019.04.036
State	Published - 15 Jan 2020
Externally published	Yes

Keywords

Gas counter
β-Decay spectroscopy
β-Ray detector

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10.1016/j.nimb.2019.04.036

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Mukai, M., Hirayama, Y., Schury, P., Watanabe, Y. X., Ahmed, M., Haba, H., Ishiyama, H., Jeong, S. C., Kakiguchi, Y., Kimura, S., Moon, J. Y., Oyaizu, M., Ozawa, A., Park, J. H., Ueno, H., Wada, M., & Miyatake, H. (2020). Development of a multi-segmented proportional gas counter for β-decay spectroscopy at KISS. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 463, 421-424. https://doi.org/10.1016/j.nimb.2019.04.036

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title = "Development of a multi-segmented proportional gas counter for β-decay spectroscopy at KISS",

abstract = "We developed a multi-segmented proportional gas counter to perform β-decay spectroscopy of neutron-rich nuclei extracted from KEK Isotope Separation System (KISS). The 32 segmented gas counters allow us two-dimensional tracking of the events to identify β-ray events by discriminating background events. The detectors being by low-density material of thin aluminized Mylar foils and P10 gas enabled us to detect low energy electrons down to 100 keV. The absolute detection efficiency was 45% at Qβ=1 MeV, and the measured background event rate was 0.11 cps. The detector was applied to perform β-decay spectroscopy and hyperfine structure measurements of neutron-rich isotopes of Pt, Ir, and Os. We started to develop the gas counter with three-dimensional tracking by replacing the material of anode wire from BeCu to resistive thin carbon to reduce the background event rate below 0.01 cps.",

keywords = "Gas counter, β-Decay spectroscopy, β-Ray detector",

author = "M. Mukai and Y. Hirayama and P. Schury and Watanabe, {Y. X.} and M. Ahmed and H. Haba and H. Ishiyama and Jeong, {S. C.} and Y. Kakiguchi and S. Kimura and Moon, {J. Y.} and M. Oyaizu and A. Ozawa and Park, {J. H.} and H. Ueno and M. Wada and H. Miyatake",

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doi = "10.1016/j.nimb.2019.04.036",

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Mukai, M, Hirayama, Y, Schury, P, Watanabe, YX, Ahmed, M, Haba, H, Ishiyama, H, Jeong, SC, Kakiguchi, Y, Kimura, S, Moon, JY, Oyaizu, M, Ozawa, A, Park, JH, Ueno, H, Wada, M & Miyatake, H 2020, 'Development of a multi-segmented proportional gas counter for β-decay spectroscopy at KISS', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 463, pp. 421-424. https://doi.org/10.1016/j.nimb.2019.04.036

TY - JOUR

T1 - Development of a multi-segmented proportional gas counter for β-decay spectroscopy at KISS

AU - Mukai, M.

AU - Hirayama, Y.

AU - Schury, P.

AU - Watanabe, Y. X.

AU - Ahmed, M.

AU - Haba, H.

AU - Ishiyama, H.

AU - Jeong, S. C.

AU - Kakiguchi, Y.

AU - Kimura, S.

AU - Moon, J. Y.

AU - Oyaizu, M.

AU - Ozawa, A.

AU - Park, J. H.

AU - Ueno, H.

AU - Wada, M.

AU - Miyatake, H.

PY - 2020/1/15

Y1 - 2020/1/15

N2 - We developed a multi-segmented proportional gas counter to perform β-decay spectroscopy of neutron-rich nuclei extracted from KEK Isotope Separation System (KISS). The 32 segmented gas counters allow us two-dimensional tracking of the events to identify β-ray events by discriminating background events. The detectors being by low-density material of thin aluminized Mylar foils and P10 gas enabled us to detect low energy electrons down to 100 keV. The absolute detection efficiency was 45% at Qβ=1 MeV, and the measured background event rate was 0.11 cps. The detector was applied to perform β-decay spectroscopy and hyperfine structure measurements of neutron-rich isotopes of Pt, Ir, and Os. We started to develop the gas counter with three-dimensional tracking by replacing the material of anode wire from BeCu to resistive thin carbon to reduce the background event rate below 0.01 cps.

AB - We developed a multi-segmented proportional gas counter to perform β-decay spectroscopy of neutron-rich nuclei extracted from KEK Isotope Separation System (KISS). The 32 segmented gas counters allow us two-dimensional tracking of the events to identify β-ray events by discriminating background events. The detectors being by low-density material of thin aluminized Mylar foils and P10 gas enabled us to detect low energy electrons down to 100 keV. The absolute detection efficiency was 45% at Qβ=1 MeV, and the measured background event rate was 0.11 cps. The detector was applied to perform β-decay spectroscopy and hyperfine structure measurements of neutron-rich isotopes of Pt, Ir, and Os. We started to develop the gas counter with three-dimensional tracking by replacing the material of anode wire from BeCu to resistive thin carbon to reduce the background event rate below 0.01 cps.

KW - Gas counter

KW - β-Decay spectroscopy

KW - β-Ray detector

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U2 - 10.1016/j.nimb.2019.04.036

DO - 10.1016/j.nimb.2019.04.036

M3 - Article

AN - SCOPUS:85064313309

SN - 0168-583X

VL - 463

SP - 421

EP - 424

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

ER -

Development of a multi-segmented proportional gas counter for β-decay spectroscopy at KISS

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Keywords

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