Performance of superconducting transition edge bolometers for infrared photometry and X-ray micro-calorimetry

Authors
Hoevers, HFC Bento, AC Bruijn, MP Frericks, M Kiewiet, FB Mels, WA de Korte, PAJ
Citation
Hfc. Hoevers et al., Performance of superconducting transition edge bolometers for infrared photometry and X-ray micro-calorimetry, NUCL INST A, 436(1-2), 1999, pp. 247-251
Citations number
20
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
436
Issue
1-2
Year of publication
1999
Pages
247 - 251
Database
ISI
SICI code
0168-9002(19991021)436:1-2<247:POSTEB>2.0.ZU;2-1
Abstract
The performance of voltage biased superconducting transition edge bolometer s for infrared photometry and X-ray micro-calorimetry is described. Experim ental results for the resistance-temperature curve of the superconducting p hase thermometer, the current-voltage characteristic of the bolometer, and its current noise are presented and evaluated. Excess current noise turns o ut to be present when the bolometers are biased in the superconducting tran sition. The possible origin of this excess noise is shortly discussed. For the infrared bolometer an NEP of 2 x 10(-17) W/root Hz at 270 mK is obtaine d. The X-ray micro-calorimeter resolution is 60 eV(FWHM) at 155 mK for 5.9 keV X-rays, a factor 2.6 above the thermodynamical limit. (C) 1999 Elsevier Science B.V. All rights reserved.