Sea level characterization of a 1100 g sapphire bolometer

Authors
Pecourt, S Berkes, I Bobin, C Coron, N De Jesus, M Hadjout, JP Leblanc, J de Marcillac, P
Citation
S. Pecourt et al., Sea level characterization of a 1100 g sapphire bolometer, NUCL INST A, 438(2-3), 1999, pp. 333-339
Citations number
15
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
438
Issue
2-3
Year of publication
1999
Pages
333 - 339
Database
ISI
SICI code
0168-9002(199912)438:2-3<333:SLCOA1>2.0.ZU;2-5
Abstract
A first characterization of a 1100 g sapphire bolometer, performed at sea l evel and at a working temperature of 40 mK, is presented. Despite perturbat ions coming from the high-radioactive background and cosmic rays, calibrati on spectra could be achieved with an internal alpha source and a Co-57 gamm a-ray source: the experimental threshold is 25 keV, while the FWHM resoluti on is 17.4 keV for the 122 keV peak. Possible heat release effects are disc ussed, and a new limit of 9 x 10(-14) W/g is obtained for sapphire. (C) 199 9 Elsevier Science B.V. All rights reserved.