Development of Superconducting Tunnel Junction detectors as a far-infrared photon-by-photon spectrometer for neutrino decay search

Yuji Takeuchi, Shin Hong Kim, Kenichi Takemasa, Kenji Kiuchi, Kazuki Nagata, Kota Kasahara, Takuya Okudaira, Tatsuya Ichimura, Masahiro Kanamaru, Kouya Moriuchi, Ren Senzaki, Shunsuke Yagi, Hirokazu Ikeda, Shuji Matsuura, Takehiko Wada, Takuo Yoshida, Shota Komura, Keisuke Orikasa, Ryuta Hirose, Yukihiro KatoMasashi Hazumi, Yasuo Arai, Shigetomo Shiki, Masahiro Ukibe, Go Fujii, Tetsuya Adachi, Masataka Ohkubo, Erik Ramberg, Jonghee Yoo, Mark Kozlovsky, Paul Rubinov, Dmitri Sergatskov, Hirokazu Ishino, Atsuko Kibayashi, Satoru Mima, Soo Bong Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We present the development of Superconducting Tunnel Junction (STJ) detectors as a far-infrared single photon spectrometer, which is motivated for an application to a search for the radiative decay of the cosmic neutrino background (CνB). The photon energy spectrum from the radiative decays of CνB is expected to have a sharp edge at high energy end in a far-infrared region ranging from 14 meV to 25 meV (from 50 μm to 90 μm in wavelength) in the cosmic infrared background and the overwhelming infrared foreground from the zodiacal emission. Thus, the detector is required photon-by-photon detection with sufficiently high energy resolution, in order to gain the best signal-to-noise ratio as well as to identify the edge structure. The following two types of photon detectors are under consideration: an array of niobium/aluminum STJ (Nb/Al-STJ) pixels with a diffraction grating, and STJ using hafnium (Hf-STJ). Each Nb/Al-STJ pixel is required to be capable of detecting single photons in the far-infrared region, and the pixel array measures the photon wavelength spectrum which the diffraction grating creates. Hf-STJ is expected to achieve 2% energy resolution for single photon of 25 meV due to very small gap energy of hafnium.

Original languageEnglish
Title of host publication2015 IEEE International Instrumentation and Measurement Technology Conference - The "Measurable" of Tomorrow
Subtitle of host publicationProviding a Better Perspective on Complex Systems, I2MTC 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages551-555
Number of pages5
ISBN (Electronic)9781479961139
DOIs
Publication statusPublished - Jul 6 2015
Event2015 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2015 - Pisa, Italy
Duration: May 11 2015May 14 2015

Publication series

NameConference Record - IEEE Instrumentation and Measurement Technology Conference
Volume2015-July
ISSN (Print)1091-5281

Other

Other2015 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2015
CountryItaly
CityPisa
Period5/11/155/14/15

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Takeuchi, Y., Kim, S. H., Takemasa, K., Kiuchi, K., Nagata, K., Kasahara, K., Okudaira, T., Ichimura, T., Kanamaru, M., Moriuchi, K., Senzaki, R., Yagi, S., Ikeda, H., Matsuura, S., Wada, T., Yoshida, T., Komura, S., Orikasa, K., Hirose, R., ... Kim, S. B. (2015). Development of Superconducting Tunnel Junction detectors as a far-infrared photon-by-photon spectrometer for neutrino decay search. In 2015 IEEE International Instrumentation and Measurement Technology Conference - The "Measurable" of Tomorrow: Providing a Better Perspective on Complex Systems, I2MTC 2015 - Proceedings (pp. 551-555). [7151327] (Conference Record - IEEE Instrumentation and Measurement Technology Conference; Vol. 2015-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/I2MTC.2015.7151327