Development of a lowerature germanium detector via mechanical cooling with a compact pulse-tube refrigerator

T. Koike, N. Chiga, T. Haruyama, K. Hosomi, H. Ichinohe, K. Kasami, T. Matsushita, Y. Mizoguchi, H. Ono, K. Shirotori, T. Takeuchi, H. Tamura, T. O. Yamamoto

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We have developed a new germanium (Ge) detector unit for hypernuclear γ-ray spectroscopy at J-PARC, which comprises a new Ge detector array Hyperball-J. A compact pulse-tube refrigerator is coupled to a coaxial Ge detector in order to achieve lower crystal temperatures as a means to increase radiation hardness. The obtained crystal temperature is 72 K, while an energy resolution is maintained at (FWHM) 3.1(1) keV for 1.33 MeV γ rays using a gate-integrated shaping amplifier (ORTEC 973U). Gain shifts with changing crystal temperature are also confirmed for the Ge detector.

本文言語English
ページ(範囲)1-7
ページ数7
ジャーナルNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
770
DOI
出版ステータスPublished - 2015 1 11

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 器械工学

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