A small portable detector head using mis-contacted CdTe for X-ray spectrometry
- 1 January 1977
- journal article
- Published by EDP Sciences in Revue de Physique Appliquée
- Vol. 12 (2) , 339-341
- https://doi.org/10.1051/rphysap:01977001202033900
Abstract
The technique of applying thin insulating layers (mylar) as blocking contacts for semiconductor radiation detectors is discussed. A versatile head consisting of a 2 mm thick, 10 mm diameter CdTe crystal cooled by a miniature Peltier element has been realized on this principle. Its performance is discussed. For the best material, a FWHM of 2 keV was achieved for 90 keV γ-rays and a peak to Compton ratio of 2 : 1 for 662 keV. However, most of the crystals show severe hole trapping, leading to poorer resultsKeywords
This publication has 2 references indexed in Scilit:
- Gamma spectroscopy with insulated CdS crystalsApplied Physics Letters, 1974
- Continuous high-field operation of CdTe gamma detectors with mis-type contactsNuclear Instruments and Methods, 1974