Spectral response of THM grown CdZnTe crystals

被引:39
作者
Chen, Henry [1 ]
Awadalla, Salah A. [1 ]
Harris, Fraser [1 ]
Lu, Pinghe
Redden, Robert [1 ]
Bindley, Glenn [1 ]
Copete, Antonio [2 ]
Hong, Jaesub [2 ]
Grindlay, Jonathan [2 ]
Amman, Mark [3 ]
Lee, Julie S. [3 ]
Luke, Paul [3 ]
Kuvvetli, Irfan [4 ]
Budtz-Jorgensen, Carl [4 ]
机构
[1] Redlen Technol, Sidney, BC V8L 5Y8, Canada
[2] Harvard Univ, Cambridge, MA 02138 USA
[3] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[4] Danish Natl Space Ctr, Copenhagen, Denmark
关键词
coplanar-grid; CZT; depth correction; gamma-ray; THM;
D O I
10.1109/TNS.2008.924089
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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(3) and 2.1% FWHM for a coplanar-grid of size 11 x 11 x 5 mm(3) were measured using Cs-137-662 keV. In addition a 4% FWHM at 122 keV has also been measured on 20 x 20 x 5 mm(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.
引用
收藏
页码:1567 / 1572
页数:6
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