Measurement of the Anisotropic Response of the ZnWO4Crystal for Developing the Direction-Sensitive Dark Matter Detector

Koichi Ichimura, Hiroyuki Sekiya, Juan W. Pedersen, Akihiro Yamaji, Shunsuke Kurosawa

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We measured the scintillation light yield of ZnWO4 crystals using a quasi-monochromatic neutron beam energy of 865 keV. Irradiating the neutron beam on two surfaces, which are almost perpendicular to the crystal axis, the light yield of oxygen recoil was measured. The obtained light yield ratio of a neutron recoil to gamma-ray-induced electron recoil for two surfaces was 0.235 ± 0.026 and 0.199 ± 0.020, respectively, which corresponds to 15.3% of anisotropy for 200-keV nuclear recoils of this crystal. This property can be applied to a direction-sensitive dark matter (DM) detector.

本文言語English
論文番号9055121
ページ(範囲)894-897
ページ数4
ジャーナルIEEE Transactions on Nuclear Science
67
6
DOI
出版ステータスPublished - 2020 6

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 原子力エネルギーおよび原子力工学
  • 電子工学および電気工学

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