| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8178122 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2014 | 5 Pages |
Abstract
Radiation detectors for medical imaging at room temperature have been developed thanks to the availability of large chlorine-compensated cadmium telluride (CdTe:Cl) crystals. Microstructural defects affect the performance of CdTe:Cl radiation detectors. Advanced characterization tools, such as Ion Beam Induced Current (IBIC) measurements and chemical etching on tellurium and cadmium faces were used to evaluate the influence of sub-grain-boundaries on charge carrier transport properties. We performed IBIC imaging to correlate inhomogeneities in charge collection for both types of charge carrier with distribution of dislocation walls in the sample. This information should help improve performance in medical imaging applications.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
C. Buis, E. Gros dâ²Aillon, A. Lohstroh, G. Marrakchi, C. Jeynes, L. Verger,