Phonon effects in STJ X-ray detectors

Authors
Andrianov, VA Dmitriev, PN Koshelets, VP Kozin, MG Romashkina, IL Sergeev, SA Shpinel, VS
Citation
Va. Andrianov et al., Phonon effects in STJ X-ray detectors, NUCL INST A, 444(1-2), 2000, pp. 19-22
Citations number
6
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
444
Issue
1-2
Year of publication
2000
Pages
19 - 22
Database
ISI
SICI code
0168-9002(20000411)444:1-2<19:PEISXD>2.0.ZU;2-P
Abstract
Influence of the phonon effects on the output signal of superconducting tun nel X-ray detectors was studied for junctions of two types: the standard Nb /Al/AlOx/Nb junctions and the multilayer asymmetric Nb/Al/AlOx/Al/Nb/NbN ju nctions with the proximity Al trapping layer. It was shown that phonon exch ange can change the shape, the amplitude and the polarity of the signal. Th e most pronounced effects were observed in asymmetric junctions for the sig nals from the electrode with higher gap. (C) 2000 Elsevier Science B.V. All rights reserved.