Speaker
Mr
Naoki Aoyama
(Nagoya University)
Description
In direct dark matter experiments using liquid xenon (Xe), scintillation and ionization signals are produced by an interaction between Xe and dark matter. A scintillation photon can produce an electron through photoelectric effect on electrodes, which is one of the major backgrounds for low-mass dark matter searches. For future direct dark matter experiments using liquid Xe, we are developing coated electrodes with low quantum efficiency (QE) to reduce such background. In this talk, I will present about the results of QE measurements for some electrodes (ex:Au, Pt, Al, SUS304) and also some insulators (ex:PTFE, Quartz, PEEK) in vacuum, liquid Xe, and gas Xe.
Primary author
Mr
Naoki Aoyama
(Nagoya University)
Co-authors
Prof.
Yoshitaka Itow
(Nagoya University)
Shingo Kazama
(Nagoya University)
Masatoshi Kobayashi
(Nagoya University)
Masaki Yamashita
(The University of Tokyo)
