Please use this identifier to cite or link to this item: http://hdl.handle.net/2381/4098
Title: AlGaAs diodes for X-ray spectroscopy.
Authors: Lees, J. E.
Bassford, D. J.
Ng, J. S.
Tan, C. H.
David, J. P. R.
First Published: 1-Sep-2008
Publisher: Elsevier B.V.
Citation: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2008, 594 (2), pp. 202-205.
Abstract: Al0.8Ga0.2As p+-p--n+ diodes with low reverse leakage currents (<10nA) were evaluated as room temperature (23ºC), 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 (>20V) we observed avalanche multiplication which, while improving the signal-to-noise ratio, degraded the spectroscopic performance.
DOI Link: 10.1016/j.nima.2008.06.038
ISSN: 0168-9002
Links: http://www.sciencedirect.com/science/article/pii/S0168900208008644
http://hdl.handle.net/2381/4098
Type: Article
Rights: This is the author's final draft of the paper published as Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2008, 594 (2), pp. 202-205. The final published version is available at http://www.sciencedirect.com/science/journal/01689002, Doi: 10.1016/j.nima.2008.06.038.
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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