Spectral Response of THM Grown CdZnTe Crystals.

Authors :: 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
Budtz-Jorgensen, Carl
Source :: IEEE Transactions on Nuclear Science. Jun2008 Part 3, Vol. 55 Issue 3, p1567-1572. 6p. 3 Diagrams, 8 Graphs.
Publication Year :: 2008
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 times 4 times 9 mm3 and 2.1% FWHM for a coplanar-grid of size 11 times 11 times 5 mm3 were measured using 137Cs-662 keV. In addition a 4% FWHM at 122 keV has also been measured on 20 times 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. [ABSTRACT FROM PUBLISHER]