Advantages and limitations of cadmium selenide room temperature gamma ray detectors

M. Roth*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

State-of-the-art technology of spectrometer grade CdSe gamma ray detectors is presented in this paper. It is shown that high resistivity CdSe single crystals can be reproducibly grown by the temperature gradient solution zoning technique. Zone refining of Se used for crystal growth is found to reduce efficiently the concentration of Cu trace impurities, which are mainly responsible for the electron trapping. The charge carrier transport parameters are studied in detail, and the perspective of further improvement of the energy resolution of CdSe detectors are discussed. A comparison with the performance of CdTe and HgI2 nuclear radiation detectors is also given.

Original languageEnglish
Pages (from-to)291-298
Number of pages8
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume283
Issue number2
DOIs
StatePublished - 1 Nov 1989

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