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Title: Ion Beam Induced Charge Collection (IBICC) Studies of Cadmium Zinc Telluride (CZT) Radiation Detectors

Abstract

Cadmium Zinc Telluride is an emerging material for room temperature radiation detectors. In order to optimize the performance of these detectors, it is important to determine how the electronic properties of CZT are related to the presence of impurities and defects that are introduced during the crystal growth and detector fabrication. At the Sandia microbeam facility IBICC and Time Resolved IBICC (TRIBICC) were used to image electronic properties of various CZT detectors. Two-dimensional areal maps of charge collection efficiency were deduced from the measurements. In order to determine radiation damage to the detectors, we measured the deterioration of the IBICC signal as the function of dose. A model to explain quantitatively the pattern observed in the charge collection efficiency maps of the damaged detectors has been developed and will be discussed in the paper.

Authors:
; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
9566
Report Number(s):
SAND99-0917C
TRN: US0103154
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: International Conference on Ion Beam Analysis, Dresden (DE), 07/26/1999--07/31/1999; Other Information: PBD: 22 Jul 1999
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 36 MATERIALS SCIENCE; CHARGE COLLECTION; CRYSTAL GROWTH; FABRICATION; ION BEAMS; PERFORMANCE; CDTE SEMICONDUCTOR DETECTORS; ZINC TELLURIDES; CRYSTAL DEFECTS; RADIATION EFFECTS

Citation Formats

Doyle, B L, Vizkelethy, G, and Walsh, D S. Ion Beam Induced Charge Collection (IBICC) Studies of Cadmium Zinc Telluride (CZT) Radiation Detectors. United States: N. p., 1999. Web.
Doyle, B L, Vizkelethy, G, & Walsh, D S. Ion Beam Induced Charge Collection (IBICC) Studies of Cadmium Zinc Telluride (CZT) Radiation Detectors. United States.
Doyle, B L, Vizkelethy, G, and Walsh, D S. 1999. "Ion Beam Induced Charge Collection (IBICC) Studies of Cadmium Zinc Telluride (CZT) Radiation Detectors". United States. https://www.osti.gov/servlets/purl/9566.
@article{osti_9566,
title = {Ion Beam Induced Charge Collection (IBICC) Studies of Cadmium Zinc Telluride (CZT) Radiation Detectors},
author = {Doyle, B L and Vizkelethy, G and Walsh, D S},
abstractNote = {Cadmium Zinc Telluride is an emerging material for room temperature radiation detectors. In order to optimize the performance of these detectors, it is important to determine how the electronic properties of CZT are related to the presence of impurities and defects that are introduced during the crystal growth and detector fabrication. At the Sandia microbeam facility IBICC and Time Resolved IBICC (TRIBICC) were used to image electronic properties of various CZT detectors. Two-dimensional areal maps of charge collection efficiency were deduced from the measurements. In order to determine radiation damage to the detectors, we measured the deterioration of the IBICC signal as the function of dose. A model to explain quantitatively the pattern observed in the charge collection efficiency maps of the damaged detectors has been developed and will be discussed in the paper.},
doi = {},
url = {https://www.osti.gov/biblio/9566}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jul 22 00:00:00 EDT 1999},
month = {Thu Jul 22 00:00:00 EDT 1999}
}

Conference:
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