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State-of-the-Art X-Ray Detectors Fabricated on PCG Grown Mercuric Iodide Platelets.

Published online by Cambridge University Press:  15 February 2011

M. R. Squillante ,
S. Lis ,
T. Hazlett  and
G. Entine
M. R. Squillante
Affiliation:
Radiation Monitoring Devices, Inc., 44 Hunt St., Watertown, MA 02172
S. Lis
Affiliation:
Radiation Monitoring Devices, Inc., 44 Hunt St., Watertown, MA 02172
T. Hazlett
Affiliation:
Radiation Monitoring Devices, Inc., 44 Hunt St., Watertown, MA 02172
G. Entine
Affiliation:
Radiation Monitoring Devices, Inc., 44 Hunt St., Watertown, MA 02172
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Abstract

Recent developments on HgI2 detectors fabricated from platelets grown by the Polymer Controller Growth (PCG) technique have resulted in a better understanding of this remarkable process and provide increased hope for the future of room temperature operable, high resolution x-ray detectors. The benefits of PCG are higher purity using reagent grade materials, better control of stoichiometry, rapid growth, and simplified fabrication. This latter benefit is even more significant when the extreme fragility of HgI2 crystals is considered. The problems of device resolution crystal stability and uniformity, and control ot platelet growth were investigated under a NASA funded program. HgI2 devices fabricated from PCG platelets gave room temperature energy resolutions under 400 eV (FWHM) for the 5.9 eV Mn x-ray. Models for the polymer assisted transport are discussed along with an analysis of spectra obtained from PCG grown devices. Reproducibility has been demonstrated both for platelet growth and device performance.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 16: Symposium – F Nuclear Radiation Detector Materials , 1982 , 199
Copyright
Copyright © Materials Research Society 1983

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References

REFERENCES

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