Opto-electrical characterization and X-ray mapping of large-volume cadmium zinc telluride radiation detectors

G. Yang, A. E. Bolotnikov, G. S. Camarda, Y. Cui, A. Hossain, H. W. Yao, K. Kim, R. B. James

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Large-volume cadmium zinc telluride (CZT) radiation detectors would greatly improve radiation detection capabilities and, therefore, attract extensive scientific and commercial interests. CZT crystals with volumes as large as hundreds of centimeters can be achieved today due to improvements in the crystal growth technology. However, the poor performance of large-volume CZT detectors is still a challenging problem affecting the commercialization of CZT detectors and imaging arrays. We have employed Pockels effect measurements and synchrotron X-ray mapping techniques to investigate the performance-limiting factors for large-volume CZT detectors. Experimental results with the above characterization methods reveal the non-uniform distribution of internal electric field of large-volume CZT detectors, which help us to better understand the responsible mechanism for the insufficient carrier collection in large-volume CZT detectors.

Original languageEnglish
Title of host publicationNuclear Radiation Detection Materials - 2009
Pages165-170
Number of pages6
Publication statusPublished - 2010
Event2009 MRS Spring Meeting - San Francisco, CA, United States
Duration: 2009 Apr 142009 Apr 17

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1164
ISSN (Print)0272-9172

Other

Other2009 MRS Spring Meeting
CountryUnited States
CitySan Francisco, CA
Period09/4/1409/4/17

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Yang, G., Bolotnikov, A. E., Camarda, G. S., Cui, Y., Hossain, A., Yao, H. W., Kim, K., & James, R. B. (2010). Opto-electrical characterization and X-ray mapping of large-volume cadmium zinc telluride radiation detectors. In Nuclear Radiation Detection Materials - 2009 (pp. 165-170). (Materials Research Society Symposium Proceedings; Vol. 1164).