Development of the bolometer for the β+β+ decay experiment

Yutaka Ito, Makoto Minowa, Wataru Ootani, Keiji Nishigaki, Yasuhiro Kishimoto, Takayuki Watanabe, Youiti Ootuka

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


We developed a bolometer with a 0.5 g CdTe absorber using a high-sensitivity NTD germanium thermistor. An energy resolution of 24 keV (FWHM) is obtained for 0.66 to 1.8 MeV γ-rays. It shows a good linearity of the response in the energy range between 0.66 and 5.5 MeV. The gain is found to be stable for a period of 72 days of continuous operation and relatively insensitive to temperature changes of the refrigerator. The temperature change of the refrigerator for this period is within ± 1 mK. Since this material contains double positron emission (β+β+) nuclides 106Cd, 108Cd and 120Te, a new series of double beta decay experiments may become possible with this new method.

Original languageEnglish
Pages (from-to)439-442
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number2-3
Publication statusPublished - 1997 Feb 21
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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