Published September 1, 2008
| Version v1
Journal article
AlGaAs diodes for X-ray spectroscopy
- 1. Space Research Centre, Department of Physics and Astronomy, Michael Atiyah Building, University of Leicester, Leicester LE1 7RH (United Kingdom)
- 2. Department of Electronic and Electrical Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD (United Kingdom)
Description
Al0.8Ga0.2As p+-p--n+ diodes with low reverse leakage currents (<10 nA) were evaluated as room temperature (23 deg. C), soft X-ray photon-counting detectors. X-ray spectra from a 55Fe radioactive source show these diodes can be used for spectroscopy with promising energy resolution of 1.47 keV FWHM at 5.9 keV. At elevated reverse bias levels (>20 V), we observed avalanche multiplication which, while improving the signal-to-noise ratio, degraded the spectroscopic performance
Availability note (English)
Available from http://dx.doi.org/10.1016/j.nima.2008.06.038Additional details
Identifiers
- DOI
- 10.1016/j.nima.2008.06.038;
- PII
- S0168-9002(08)00864-4;
Publishing Information
- Journal Title
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Journal Volume
- 594
- Journal Issue
- 2
- Journal Page Range
- p. 202-205
- ISSN
- 0168-9002
- CODEN
- NIMAER
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40036507
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- ALUMINIUM ARSENIDES; ENERGY RESOLUTION; GALLIUM ARSENIDES; IRON 55; KEV RANGE; LEAKAGE CURRENT; NITROGEN IONS; PERFORMANCE; PHOSPHORUS IONS; PHOTONS; RADIATION SOURCES; SIGNAL-TO-NOISE RATIO; SOFT X RADIATION; TEMPERATURE RANGE 0273-0400 K; TOWNSEND DISCHARGE; X-RAY DETECTION; X-RAY SPECTRA; X-RAY SPECTROSCOPY
- Descriptors DEC
- ALUMINIUM COMPOUNDS; ARSENIC COMPOUNDS; ARSENIDES; BETA DECAY RADIOISOTOPES; BOSONS; CHARGED PARTICLES; CURRENTS; DETECTION; DIMENSIONLESS NUMBERS; ELECTRIC CURRENTS; ELECTRIC DISCHARGES; ELECTROMAGNETIC RADIATION; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTARY PARTICLES; ENERGY RANGE; EVEN-ODD NUCLEI; GALLIUM COMPOUNDS; INTERMEDIATE MASS NUCLEI; IONIZING RADIATIONS; IONS; IRON ISOTOPES; ISOTOPES; MASSLESS PARTICLES; NUCLEI; PNICTIDES; RADIATION DETECTION; RADIATIONS; RADIOISOTOPES; RESOLUTION; SPECTRA; SPECTROSCOPY; TEMPERATURE RANGE; X RADIATION; YEARS LIVING RADIOISOTOPES
Optional Information
- Copyright
- Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.