Correlation between bulk material defects and spectroscopic response in cadmium zinc telluride detectors

Bradford H. Parker; Carl Michael Stahle; Scott D. Barthelmy; Ann M. Parsons; Jack Tueller; J. T. VanSant; B. F. Munoz; S. J. Snodgrass; R. E. Mullinix

doi:10.1117/12.366576

19 October 1999 Correlation between bulk material defects and spectroscopic response in cadmium zinc telluride detectors

Bradford H. Parker, Carl Michael Stahle, Scott D. Barthelmy, Ann M. Parsons, Jack Tueller, J. T. VanSant, B. F. Munoz, S. J. Snodgrass, R. E. Mullinix

Author Affiliations +

Proceedings Volume 3768, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics; (1999) https://doi.org/10.1117/12.366576
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

One of the critical challenges for large area cadmium zinc telluride (CdZnTe) detector arrays is obtaining material capable of uniform imaging and spectroscopic response. Two complementary nondestructive techniques for characterizing bulk CdZnTe have been developed to identify material with a uniform response. The first technique, IR transmission imaging, allows for rapid visualization of bulk defects. The second technique, x-ray spectral mapping, provides a map of the material spectroscopic response when it is configured as a planar detector. The two techniques have been used to develop a correlation between bulk defect type and detector performance. The correlation allows for the use of IR imaging to rapidly develop wafer mining maps. The mining of material free of detrimental defects has the potential to dramatically increase the yield and quality of large area CdZnTe detector arrays.

Citation Download Citation

Bradford H. Parker, Carl Michael Stahle, Scott D. Barthelmy, Ann M. Parsons, Jack Tueller, J. T. VanSant, B. F. Munoz, S. J. Snodgrass, and R. E. Mullinix "Correlation between bulk material defects and spectroscopic response in cadmium zinc telluride detectors", Proc. SPIE 3768, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics, (19 October 1999); https://doi.org/10.1117/12.366576

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