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|Title:||InAs avalanche photodiodes for X-ray detection||Authors:||Gomes, R.B.
|Issue Date:||2011||Abstract:||Pulse height spectra were obtained by irradiating 55Fe radioactive X-ray source on an InAs n-i-p APD cooled to 77K. The full width half maximum (FWHM) of the detected photopeak at 5.9 keV improves with increasing reverse bias. The FWHM decreases rapidly with gain from 2 keV at M = 1 to ∼950eV at M = 5.2, improving the minimum detectable energy and resolution of the APD. The larger than expected FWHM is due to non-optimised packaging that leads to increased leakage current of the detector. © 2011 IEEE.||URI:||http://dspace.uniten.edu.my/jspui/handle/123456789/5994|
|Appears in Collections:||COE Scholarly Publication|
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