Low background radiation SOI pixel detector for Solar Axion search experiment.

15 Dec 2017, 09:40
20m
Conference Center (Okinawa Institute of Science and Technology Graduate University (OIST))

Conference Center

Okinawa Institute of Science and Technology Graduate University (OIST)

OIST, Onna, Okinawa 904-0495, Japan
ORAL SOI detectors Session15

Speaker

Yoshiyuki Onuki (University of Tokyo)

Description

A solution to the strong CP problem was proposed by introducing a pseudoscalar particle, the Axion, in 1977. Both the experimental constraints and the theoretical predictions have been made by various approaches in Particle physics, Astrophysics and Cosmology so far.
We discuss configuration of the Solar Axion search experiment with a 57Fe foil, as an Axion-photon converter, sandwiched pixel detectors. The detector consists of SOI pixel sensor having a fine granularity and a good energy resolution with Event-driven mode, the peripheral circuit board and the radiation shield. In the experiment, low radiation background is the essential to maximize the sensitivity. We also discuss how to achieve the low radiation background detector with simulation and measurement.

Primary authors

Yoshiyuki Onuki (University of Tokyo) Johnny Mora Grimaldo (University of Tokyo) Tatsuki Ose (University of Tokyo) Hiroaki Aihara (University of Tokyo) Yoshizumi Inoue (University of Tokyo) Yoshio Kamiya (University of Tokyo) Kenji Shimazoe (University of Tokyo) Takeshi Go Tsuru (Kyoto University) Takaaki Tanaka (Kyoto University) Ayaki Takeda (University of Miyazaki) Kentaro Miuchi (Kobe University) Yasuo Arai (High Energy Accelerator Research Organization)

Presentation materials