NB AL/ALOX/NB SUPERCONDUCTING TUNNEL-JUNCTIONS AS X-RAY-DETECTORS/

Authors
ZACHER RA SAULNIER G FRITZ GG VANVECHTEN D KANG J
Citation
Ra. Zacher et al., NB AL/ALOX/NB SUPERCONDUCTING TUNNEL-JUNCTIONS AS X-RAY-DETECTORS/, Journal of low temperature physics, 93(3-4), 1993, pp. 581-586
Citations number
6
Categorie Soggetti
Physics, Applied
Journal title
Journal of low temperature physics → ACNP
ISSN journal
00222291
Volume
93
Issue
3-4
Year of publication
1993
Pages
581 - 586
Database
ISI
SICI code
0022-2291(1993)93:3-4<581:NASTAX>2.0.ZU;2-4
Abstract
Nb/Al/AlOx/Nb junctions have been shown to be effective x-ray detector s that are robust to thermal cycling. We compare results from two junc tions, one with a fine-grained base-layer electrode and counterelectro de and the other with an epitaxial base-layer electrode and a fine-gra ined counterelectrode. For a 6 keV x-ray, at 0.4 K, the epitaxial samp le had a FWHM resolution of 157 eV and the fine-grained junction had a FWHM resolution of 300 eV. The differences between the junctions will be discussed.