Development of a low-α-emitting μ-PIC as a readout device for direction-sensitive dark matter detectors

Takashi Hashimoto*, Kentaro Miuchi, Tomonori Ikeda, Hirohisa Ishiura, Kiseki D. Nakamura, Hiroshi Ito, Koichi Ichimura, Ko Abe, Kazuyoshi Kobayashi, Atsushi Takada, Atsuhiko Ochi, Takuma Nakamura, Takuya Shimada

*この研究の対応する著者

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Direction sensitivity could provide robust evidence for the direct detection of weakly interacting massive particles constituting dark matter. However, the sensitivity of this method remains low due to the radioactive backgrounds. The purpose of this study is to develop a low-background detector as a two-dimensional imaging device for a gaseous time projection chamber. In direction-sensitive dark matter experiments (e.g. NEWAGE), α-rays emitted from the detector components often create substantial radioactive backgrounds. Based on the study of the background of NEWAGE, a new detector “low-αμ-PIC” is developed. The produced μ-PIC performs well as a gas detector and the α-ray emission rate from the μ-PIC reduced by a factor of 100.

本文言語English
論文番号164285
ジャーナルNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
977
DOI
出版ステータスPublished - 2020 10月 11
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 器械工学

フィンガープリント

「Development of a low-α-emitting μ-PIC as a readout device for direction-sensitive dark matter detectors」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル