1. Spectral response of THM grown CdZnTe crystals
- Author
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Chen, Henry, Awadalla, Salah A., Harris, Fraser, Lu, Pinghe, Redden, Robert, Bindley, Glenn, Copete, Antonio, Hong, Jaesub, Grindlay, Jonathan, Amman, Mark, Lee, Julie S., Luke, Paul, Kuvvetli, Irfan, and Budtz-Jorgensen, Carl
- Subjects
Gamma rays -- Properties ,Energy transformation -- Evaluation ,Gamma ray spectrometry -- Methods ,Crystals -- Growth ,Crystals -- Evaluation ,Business ,Electronics ,Electronics and electrical industries - Abstract
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 x 4 x 9 [mm.sup.3] and 2.1% FWHM for a coplanar-grid of size 11 x 11 x 5 [mm.sup.3] were measured using [sup.137]Cs-662 keV. In addition a 4% FWHM at 122 keV has also been measured on 20 x 20 x 5 [mm.sup.3] 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. Index Terms--Coplanar-grid, CZT, depth correction, gamma-ray, THM.
- Published
- 2008