@article{d018f919d3b440aeb8dde26d08918007,
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",
note = "Funding Information: The development and experiments were performed at the RI Beam Factory (RIBF) operated by RIKEN Nishina Center and CNS, University of Tokyo. The experiments were carried out under Program No. NP1512-RRC41-02 at the RIBF. One of the authors (M. M.) acknowledges the support from RIKEN as a Junior Research Associate (JRA). This work was supported by JSPS KAKENHI Grant Nos. JP26247044, JP15H02096, and JP17H01132. Funding Information: The development and experiments were performed at the RI Beam Factory (RIBF) operated by RIKEN Nishina Center and CNS, University of Tokyo. The experiments were carried out under Program No. NP1512-RRC41-02 at the RIBF. One of the authors (M. M.) acknowledges the support from RIKEN as a Junior Research Associate (JRA). This work was supported by JSPS KAKENHI Grant Nos. JP26247044, JP15H02096, and JP17H01132. Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",
year = "2020",
month = jan,
day = "15",
doi = "10.1016/j.nimb.2019.04.036",
language = "English",
volume = "463",
pages = "421--424",
journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",
issn = "0168-583X",
publisher = "Elsevier",
}