A Study of Microcalorimeter with Dielectric Thermomete

Tetsuya Ariyoshi, Hiroki Tanaka, Akihito Hora, Takumi Yamauchi, Keisuke Maehata, Kenji Ishibashi, Nobuyuki Wada, Yukio Sakabe

Research output: Contribution to journalArticlepeer-review


The microcalorimeter detects a single particle of radiation by means of the temperature rise in the absorber kept at low temperature below IK. A sensitive thermometer measuring the temperature rise is an important component in the microcalorimeter. Dielectric materials whose electric capacitances depend on temperature at low temperature can be utilized for the sensitive thermometer of the microcalorimeter. The temperature dependence of the electric capacitance d(ln Cd)/dT is an important parameter for the dielectric thermometer. We have studied the dielectric thermometer made of SrTiO3 based material and carried out measurement of the electric capacitance in the temperature range from 50mK to 120mK. By using experimental values of d(ln Cd)/dT an output signal of the dielectric microcalorimeter was estimated in the detection of a 5.5 MeV α-partice.

Original languageEnglish
Pages (from-to)357-360
Number of pages4
Journaljournal of nuclear science and technology
Publication statusPublished - Mar 2004

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering


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