Spectral response of THM grown CdZnTe crystals

H. Chen, S.A. Awadalla, F. Harris, Pinghe Lu, R. Redden, G. Bindley, A. Copete, J. Hong, J. Grindlay, M. Amman, J.S. Lee, P. Luke, Irfan Kuvvetli, Carl Budtz-Jørgensen

Research output: Contribution to journalJournal articlepeer-review


The spectral response of several crystals grown by the Traveling Heater Method (THM) were investigated. An energy resolution of 0.98% for a Pseudo Frisch-Grid of 4 × 4 × 9 mm3 and 2.1% FWHM for a coplanar-grid of size 11 × 11 × 5 mm3 were measured using 137Cs-662 keV. In addition a 4% FWHM at 122 keV has also been measured on 20 × 20 X 5 mm3 monolithic pixellated devices. The material shows great potential toward producing large-volume detectors with spectral performance that meets the requirement for high-resolution gamma-ray spectroscopy.
Original languageEnglish
JournalIEEE Transactions on Nuclear Science
Issue number3
Pages (from-to)1567-1572
Publication statusPublished - 2008


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