@article{37565261ecdf4b61840e76120addc003,
title = "Anisotropic response measurements of ZnWO4 scintillators to neutrons for developing a direction-sensitive dark matter detector",
abstract = "The scintillation yields of ZnWO4 crystals change depending on the incident direction of particles. This property can be used as a direction-sensitive dark matter detector, so we investigated the ZnWO4 light yields ratio of neutron-induced nuclear recoils to gamma-ray-induced electron recoils (quenching factor). Two surfaces almost perpendicular to the crystal axis of ZnWO4 were irradiated with a quasi-monochromatic neutron beam of 0.885 MeV, and the quenching factors of both surfaces for the oxygen-nucleus recoil in the ZnWO4 crystal were measured. The obtained quenching factors of the two surfaces were 0.235 ± 0.026 and 0.199 ± 0.020, respectively, confirming 15.3% anisotropy.",
author = "Pedersen, {Juan W.} and Hiroyuki Sekiya and Koichi Ichimura",
note = "Funding Information: We would like to thank Dr. Tetsuro Matsumoto and Dr. Akihiko Masuda from Radioactivity and Neutron Standards Group, Research Institute for Measurement and Analytical Instrumentation, National Meteorology Institute of Japan, and the National Institute of Advanced Industrial Science and Technology for the accelerator operation. We would also like to thank Dr. Shunsuke Kurosawa from the New Industry Creation Center, Tohoku University and Yamagata University, as well as Dr. Akihiro Yamaji from the Institute for Materials Research, Tohoku University for measuring the orientation of the ZnWO4 crystal. This work was supported by Japan Society for the Promotion of Science (JSPS) KAKENHI grant numbers 15K13478 and 17H02884. Publisher Copyright: {\textcopyright} 2020 The Author(s).",
year = "2020",
month = feb,
day = "28",
doi = "10.1093/ptep/ptz168",
language = "English",
volume = "2020",
journal = "Progress of Theoretical and Experimental Physics",
issn = "2050-3911",
publisher = "Oxford University Press",
number = "2",
}