The role of space charge in GaAs-based particle detectors

Authors
Mares, JJ Kristofik, J Hubik, P Pospisil, S
Citation
Jj. Mares et al., The role of space charge in GaAs-based particle detectors, NUCL INST A, 434(1), 1999, pp. 57-60
Citations number
10
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
434
Issue
1
Year of publication
1999
Pages
57 - 60
Database
ISI
SICI code
0168-9002(19990911)434:1<57:TROSCI>2.0.ZU;2-C
Abstract
The direct measurement of the captured charge using the Faraday cup method together with the analysis of current-voltage curves was used for the exper imental proof of the existence of the space charge in biased GaAs detector structures. The role of this space charge was discussed using the generaliz ed Ramo-Gunn's theorem which enabled the explanation of the data observed a nd, moreover, provides a useful criterion for the optimization of GaAs-base d particle detectors. (C) 1999 Elsevier Science B.V. All rights reserved.