DocumentCode
1118324
Title
Output signal from Nb-based tunnel junctions by irradiation of 6 keV X-rays
Author
Ishibashi, K. ; Mori, K. ; Takeno, K. ; Nagae, T. ; Matsumoto, Y. ; Takada, S. ; Nakagawa, H. ; Akoh, H.
Author_Institution
Dept. of Nucl. Eng., Kyushu Univ., Fukuoka, Japan
Volume
27
Issue
2
fYear
1991
fDate
3/1/1991 12:00:00 AM
Firstpage
2661
Lastpage
2664
Abstract
Large-size tunnel junctions with a Nb-Al-AlOx-Nb structure have been fabricated in order to study their performance in X-ray detection. The junction detected 5.9-keV X-rays with an energy resolution of 1 keV. The output signal was analyzed by the use of coupled Boltzmann equations. The method based on these equations clarifies the basic behavior of the quasiparticles and phonons, and the average energy for producing a single electron is 3.2 Δ
Keywords
X-ray detection and measurement; alumina; aluminium; niobium; superconducting junction devices; 6 keV; Nb-Al-AlOx-Nb; X-ray detection; coupled Boltzmann equations; energy resolution; phonons; quasiparticles; Electrons; Energy resolution; Equations; Josephson junctions; Niobium; Phonons; Radiation detectors; Superconducting epitaxial layers; Tin; X-ray detection;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.133759
Filename
133759
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