Pulse response of GaAs and InP photoconductive detectors for the X-ray diagnostics of laser plasmas

Authors
Riesz, F Ryc, L Badziak, J Pfeifer, M
Citation
F. Riesz et al., Pulse response of GaAs and InP photoconductive detectors for the X-ray diagnostics of laser plasmas, NUCL INST A, 474(2), 2001, pp. 151-158
Citations number
13
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
474
Issue
2
Year of publication
2001
Pages
151 - 158
Database
ISI
SICI code
0168-9002(200112)474:2<151:PROGAI>2.0.ZU;2-J
Abstract
Bulk and surface-oriented GaAs and InP photoconductive detectors were fabri cated for the detection of X-ray pulses from laser plasmas. Current-voltage curves, pulses from different lasers as well as pulse-height spectra measu rements using light pulses are used to compare the detectors. Non-linear de pendence of the response on excitation intensity is found and investigated in detail. The results are explained by carrier trapping/detrapping and rec ombination phenomena. The response to X-ray pulses from a picosecond laser plasma are presented as well. InP detectors were of higher performance. (C) 2001 Elsevier Science B.V. All rights reserved.