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An Approach to Sub-Pixel Spatial Resolution in Room Temperature X-Ray Detector Arrays with Good Energy Resolution

Published online by Cambridge University Press:  10 February 2011

W. K. Warburton
W. K. Warburton*
Affiliation:
X-ray Instrumentation Associates (XIA), 2513 Charleston Road STE 207 Mountain View, CA 94043-1607, USA.
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Abstract

In this paper we examine a recently proposed concept for obtaining sub-pixel spatial resolution in compound semiconductors where hole transport properties are relatively poor. [1] This approach uses weighted sums and differences of local pixel signals to extract both accurate x-ray energy estimates and interpolate location at the sub-pixel level. A simple analysis, including noise estimates, suggests the possibility of obtaining locations at the 50–100 micron level using 1–2 mm wide stripe electrodes while obtaining 1–2% energy resolution for x-rays up to 100 keV. Following this examination, we will present the most recent experimental results from our program to develop electronics to implement this scheme.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 487: Symposium I – Semiconductors for Room-Temperature Radiation II , 1997 , 531
Copyright
Copyright © Materials Research Society 1998

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References

1. Warburton, W. K. in “Fifth Scientific Symposium on Room-Temperature Semi-Conductor X-ray, Gamma-ray, and Neutron Detectors, (11–12 March 1997, Sandia National Laboratory, Livermore, CA), Ed. James, R. B..Google Scholar
2. Barber, H B, SPIE Vol. 2859, p.26–28 (1996).Google Scholar
3. Hamel, L A, Macri, J R, Stahle, C M, Odom, J., Birsa, F., Shu, P. & Doty, FP, IEEE Trans. Nucl. Sci. 43, p. 1422–1426 (1996).Google Scholar
4. Marks, D G, Barber, H B, Dereniak, E L, Eskin, J D, Matherson, K J, Woolfenden, J M, Young, E T, Augustine, F L, Hamilton, W J, Venzon, J E, Apotovsky, B A & Doty, F P, IEEE Trans. Nucl. Sci. 43, p. 1253–1259 (1996).Google Scholar
5. Eskin, J D, Barrett, H H, Barber, H B & Woolfenden, J M, IEEE 1995 Nuclear Science Symposium and Medical Imaging Conference Record, P.A. Moonier Ed., p. 544–548 (1995).Google Scholar