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Energy Resolution Measurements of Mercuric Iodide Detectors Using a Cooled Fet Preamplifier

Published online by Cambridge University Press:  06 March 2019

Lawrence Ames ,
William Drummond ,
Jan Iwanczyk  and
Andrzej Dabrowski
Lawrence Ames
Affiliation:
Tracor Xray, Inc., Mountain View, CA 94043
William Drummond
Affiliation:
Tracor Xray, Inc., Mountain View, CA 94043
Jan Iwanczyk
Affiliation:
Institute for Physics and Imaging Science, University of Southern California, Marina Del Rey, CA 90291
Andrzej Dabrowski
Affiliation:
Institute for Physics and Imaging Science, University of Southern California, Marina Del Rey, CA 90291
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Abstract

The performance of a room temperature mercuric iodide X-ray detector was investigated as a function of detector bias, amplifier time constant, and detector temperature. A Mn Kα line of 200 eV FWHM was obtained by using low noise electronics developed for Si(Li) detectors, including a cooled input PET. Measurements of the detector's resolution at various X-ray energies result in a Fano factor of 0.20.

Type
VI. New XRF Instrumentation and Techniques
Information
Advances in X-Ray Analysis , Volume 26: Thirty-First Annual Conference on Applications of X-ray Analysis, August 1-6, 1982 , 1982 , pp. 325 - 330
Copyright
Copyright © International Centre for Diffraction Data 1982

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References

1. Iwanczyk, J.S., Dabrowski, A.J., Huth, G.C., A. Del Duca, and Schnepple, W., IEEE Trans Mucl. Sci.,. NS-28:579 (1981)Google Scholar
2. Ponpon, J.P., Stuck, R., Siffert, P., Meyer, B., and Schwab, C., IEEE Trans Mucl.’ Sci., NS-22:182 (1975)Google Scholar