Multi-parameter high-resolution spatial maps of a CdZnTe radiation detector array

Author

Hilton, N.R. ; Barber, H.B. ; Brunett, B.A. ; Eskin, J.D. ; Goorsky, M.S. ; James, R.B. ; Lund, J.C. ; Marks, D.G. ; Schlesinger, T.E. ; Teska, T.M. ; Van Scyoc, J.M. ; Woolfenden, J.M. ; Yoon, H.

Author_Institution

Arizona Univ., Tucson, AZ, USA

Volume

1

fYear

1998

fDate

1998

Firstpage

646

Abstract

Resistivity results from a 48×48 pixelated CdZnTe (CZT) radiation detector array are presented alongside X-ray topography and detector mapping with a collimated gamma-ray beam. By using a variety of measurements performed on the same sample and registering each data set relative to the others, the spatial dependence of relationships between them was examined. The local correlations between resistivity and one measure of detector performance were strongly influenced by the positions of grain boundaries and other gross crystal defects in the sample. These measurements highlight the need for material studies of spatially heterogeneous CZT to record position information along with the parameters under study

Keywords

crystal defects; gamma-ray detection; grain boundaries; leakage currents; position sensitive particle detectors; semiconductor counters; CdZnTe; CdZnTe detector array; X-ray topography; collimated gamma-ray beam; crystal defects; detector mapping; grain boundaries; high-resolution; leakage current; position information; resistivity; Conductivity; Gamma ray detection; Gamma ray detectors; Grain boundaries; Position measurement; Radiation detectors; Sensor arrays; Surfaces; X-ray detection; X-ray detectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1998. Conference Record. 1998 IEEE

Conference_Location

Toronto, Ont.

ISSN

1082-3654

Print_ISBN

0-7803-5021-9

Type

conf

DOI

10.1109/NSSMIC.1998.775222

Filename

775222