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Title: X-Ray Photoelectron Spectroscopy of CdZnTe and CdMnTe Materials for Nuclear Detectors
Cadmium zinc telluride (CdZnTe) and cadmium manganese telluride (CdMnTe) semiconductor nuclear detectors have the ability to operate at room temperature without cryogenic cooling. Thus, they can be fabricated into portable nuclear detection devices that can be used at seaports and border security, and at nuclear facilities to monitor radiation levels. In this paper, we present results from the use of X-ray photoelectron spectroscopy (XPS) to study the surface compositions of CdZnTe and CdMnTe wafers. Our results showed that Cd, Te and TeO2 are the dominant species on these materials. Zn was also present on CdZnTe wafer, and Mn is present on the CdMnTe wafer. CdZnTe samples that were etched with high-energy ion beam did not show the presence of TeO2 on their surfaces.  more » « less
Award ID(s):
1828729 1818732 1140059
PAR ID:
10313492
Author(s) / Creator(s):
; ; ; ; ; ; ;
Date Published:
Journal Name:
2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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