Speaker
Tsutomu Nagayoshi
(Waseda University, Tokyo)
Description
Astronauts have to receive the risk of radiation exposure in space. The
radiation dose rate is about a hundred times as much as that on the ground.
Hence, precise radiation dosimetry in space is necessary to control the
health of astronauts. We started to develop a new dosimeter named
“Position Sensitive Tissue Equivalent Proportional Counter (PS-TEPC)” to
measure Linear Energy Transfer (LET) of cosmic-ray precisely. The PS-TEPC
consists of the “Micro Pixel Chamber (μ-PIC)” which is one of the micro-
pattern gas detectors. We performed the heavy ion irradiation test at HIMAC
beam line to evaluate the response of the μ-PIC to the heavy particles. The
energy deposit and 3-dimensional tracks of the heavy ions are successfully
observed, and the performances were evaluated. We report the result of the
performance test of the μ-PIC at HIMAC and the futhre prospect of the PS-
TEPC.
Author
Tsutomu Nagayoshi
(Waseda University, Tokyo)
