Community Research and Development Information Service - CORDIS

Abstract

Room temperature semiconductor detectors are used in the field of nuclear safeguards. Gamma spectra obtained with hemispherical CdZnTe detectors present distortions due to incomplete charge collection. The full-energy peaks are asymmetric and they are characterized by a long low energy tailing.

In the present work, the full-energy peak of 14 detectors CzT/500 (RITEC) and 8 CZT/60 (RITEC) have been described with a set of four functions. The fit parameters were determined as a function of the energy for each detector and were applied to the calculation of the efficiency.

The results show that the fit parameter values are highly variable over the individual detectors of each type. It is not possible to associate a unique set of parameters to describe the full energy peak of a group of detectors. However, the use of individual parameter sets leads to a more precise evaluation of gamma spectra of fission products in nuclear spent fuel. el.

Additional information

Authors: BERNDT R, JRC, ISIS, Ispra (IT);MORTREAU P, JRC, ISIS, Ispra (IT);BRAUN A, JRC, ISIS, Ispra (IT)
Bibliographic Reference: An oral report given at: The International Symposium on Optical Science and Technology, San Diego (US), 29 July-3 August 2001. Published in: Hard X-ray and Gamma-Ray Detector Physics III, Vol.4507
Record Number: 200114009 / Last updated on: 2001-11-14
Category: PUBLICATION
Original language: en
Available languages: en