Basic performance of a position-sensitive tissue-equivalent proportional chamber (PS-TEPC)

Yuji Kishimoto, Shinichi Sasaki, Kiwamu Saito, Kazutoshi Takahashi, Tadayoshi Doke, Kentaro Miuchi, Tetsuhito Fuse, Aiko Nagamatsu, Yukio Uchihori, Hisashi Kitamura, Kazuhiro Terasawa

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


The characteristics and performance of the prototype of a Position-Sensitive Tissue-Equivalent Proportional Chamber (PS-TEPC), consisting of a miniaturized micro-pixel chamber (μ-PIC), were investigated. The gas-gain curve of the μ-PIC and an approximate function with which to convert measured collected charge into the primary charge ionized by incident heavy-ion particles were obtained. The measured Linear Energy Transfer (LET) indicated good agreement with that of the injected beam calculated using SRIM2008 code in the LET range from 0.4 to 180keV/μm, which roughly covers the whole LET range required for space dosimeters. As expected, the measured energy resolution improved with increasing LET of the injected beam. It was estimated to be 27% for 0.4keV/μm, which is just about the LET of minimum-ionizing particles. Consequently, it was confirmed that the PS-TEPC exhibits no significant undesirable feature but is well suited for space dosimetry.

Original languageEnglish
Pages (from-to)591-594
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Publication statusPublished - 2013


  • LET
  • Space dosimeter

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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