Development of hard X-ray and gamma-ray spectrometer using superconducting transition edge sensor

Shuichi Hatakeyama, Masashi Ohno, R. M.Thushara Damayanthi, Hiroyuki Takahashi, Yusuke Kuno, Naoko Iyomoto, Keisuke Maehata, Chiko Otani, Toshihide Usui, Takashi Onishi, Hiroshi Obayashi, Koji Takasaki

Research output: Contribution to journalArticle

Abstract

Superconducting transition edge sensors (TES) are used for high-resolution X-ray spectroscopy. In our group, we developed an Ir-TES and reported an energy resolution of 6.9 eV FWHM at 5.9 keV (Kunieda et al., 2004). In this study, we have designed a new TES detector using a superconducting tin (Sn) absorber to detect high energy photons over 100 keV. The Sn absorber is coupled to an Ir/Au superconducting film which is deposited on an ultra-thin SiN membrane (500 nm thick) with a small amount of epoxy post (Stycast 2850FT) by handling with a flip-chip bonding machine. The measured energy resolution is 485 eV FWHM at 60 keV and is better than that of HPGe detector.

Original languageEnglish
Pages (from-to)83-86
Number of pages4
JournalRadiation Measurements
Volume55
DOIs
Publication statusPublished - Aug 2013

All Science Journal Classification (ASJC) codes

  • Radiation
  • Instrumentation

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    Hatakeyama, S., Ohno, M., Damayanthi, R. M. T., Takahashi, H., Kuno, Y., Iyomoto, N., Maehata, K., Otani, C., Usui, T., Onishi, T., Obayashi, H., & Takasaki, K. (2013). Development of hard X-ray and gamma-ray spectrometer using superconducting transition edge sensor. Radiation Measurements, 55, 83-86. https://doi.org/10.1016/j.radmeas.2012.05.013