Speaker
Prof.
Shinhong Kim
(University of Tsukuba)
Description
We present the status of the development of Superconducting Tunnel Junction (STJ) detector with the cryogenic preamplifier as a far-infrared single photon detector for the COsmic BAckground Neutrino Decay search (COBAND) experiment. The photon energy spectrum from the radiative decay of cosmic background neutrino is expected to have a sharp cutoff at high energy end in a far-infrared region ranging from 15meV to 30meV. The detector is required to measure an individual photon energy with a sufficient energy resolution less than 2% for identifying the cutoff structure, and to be designed for a rocket or satellite experiment. We develop a diffraction grating and an array of Nb/Al-STJ pixels, where each pixel can detect a single far-infrared photon delivered by the grating according to its wavelength. An amplifier is required to have a level of 10 electron equivalent-noise for the Nb/Al-STJ. To achieve high signal-to-noise ratio of the STJ, we use a preamplifier made with the Silicon on Insulator (SOI) technique that can be operated at low temperature around 0.3K. We have developed the Nb/Al-STJ with the SOI cryogenic preamplifier and have tested the detector performance around 0.3K. The present status of this STJ detector development is reported in details.
Summary
We present the status of the development of Superconducting Tunnel Junction (STJ) detector with the cryogenic preamplifier as far-infrared single photon detector for the COsmic BAckground Neutrino Decay search (COBAND) experiment.We have developed the Nb/Al-STJ with the SOI cryogenic preamplifier and have tested the detector performance around 0.3K. The present status of the development of this STJ detector with the SOI cryogenic preamplifier is reported in details.
Primary author
Prof.
Shinhong Kim
(University of Tsukuba)
Co-authors
Dr
Atsuko Kibayashi
(Okayama University)
Ms
Chisa Asano
(University of Fukui)
Dr
Dmitri Sergatskov
(FNAL)
Dr
Erik Ramberg
(FNAL)
Dr
Go Fujii
(AIST)
Prof.
Hirokazu Ikeda
(JAXA/ISAS)
Prof.
Hirokazu Ishino
(Okayama University)
Prof.
Ikuo Kurachi
(KEK)
Dr
Jonghee Yoo
(FNAL)
Dr
Kazuki NAGATA
(University of Tsukuba)
Dr
Kenichi Takemasa
(University of Tsukuba)
Dr
Koichi Nagase
(JAXA/ISAS)
Mr
Kota Kasahara
(University of Tsukuba)
Mr
Koya Moriuchi
(University of Tsukuba)
Prof.
Maashi Hazumi
(KEK)
Mr
Makoto Sakai
(University of Fukui)
Mr
Mark Kozlovsky
(FNAL)
Dr
Masahiro Ukibe
(AIST)
Dr
Masataka Ohkubo
(AIST)
Dr
Paul Rubinov
(FNAL)
Mr
Ren Senzaki
(University of Tsukuba)
Ms
Rena Wakasa
(University of Tsukuba)
Dr
Satoru Mima
(RIKEN)
Dr
Shigetomo Shiki
(AIST)
Prof.
Shoji Kawahito
(Shizuoka University)
Prof.
Shuji Matsuura
(Kwansei Gakuin Univesity)
Dr
Shunsuke Baba
(JAXA)
Mr
Shunsuke Yagi
(University of Tsukuba)
Prof.
Soo-Bong Kim
(Seoul National University)
Mr
Takahiro Nakamura
(University of Fukui)
Dr
Takehiko Wada
(JAXA/ISAS)
Prof.
Takuo Yoshida
(UNiversity of Fukui)
Prof.
Yasuo Arai
(KEK)
Prof.
Yukihiro Kato
(Kindai University)
Dr
kenji Kiuchi
(RIKEN)
Prof.
yuji takeuchi
(university of tsukuba)
