SUPERCONDUCTING TUNGSTEN FILMS FOR USE AS PHASE-TRANSITION THERMOMETERS FOR CALORIMETRIC DETECTORS

Authors
COLLING P NUCCIOTTI A SEIDEL W PROBST F COOPER S DUMMER D FERGER P FRANK M IGALSON J NAGEL U RULOFS A STODOLSKY L
Citation
P. Colling et al., SUPERCONDUCTING TUNGSTEN FILMS FOR USE AS PHASE-TRANSITION THERMOMETERS FOR CALORIMETRIC DETECTORS, Journal of low temperature physics, 93(3-4), 1993, pp. 549-554
Citations number
12
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
549 - 554
Database
ISI
SICI code
0022-2291(1993)93:3-4<549:STFFUA>2.0.ZU;2-D
Abstract
To improve the sensitivity of calorimetric particle detectors we want to produce low-T(c) superconducting thin films to be used as phase tra nsition thermometers. We have succeeded in depositing epitaxial a-tung sten films on sapphire which have critical temperatures T(c) near 15 m K. To our knowledge this is the first time that the T(c) of bulk tungs ten has been observed in thin films. Such a film has been produced on a 4 g sapphire crystal and operated as a calorimeter, giving an energy resolution of 75 eV (FWHM) for 1.5 ke V X-rays.