Phenomenological model for predicting the energy resolution of neutron-damaged coaxial HPGe detectors

Autor:	Van Siclen, C. DeW., Seabury, E. H., Wharton, C. J., Caffrey, A. J.
Rok vydání:	2011
Předmět:	Physics - Instrumentation and Detectors
Zdroj:	IEEE Transactions on Nuclear Science 59 (5), 2487-93 (2012)
Druh dokumentu:	Working Paper
DOI:	10.1109/TNS.2012.2209896
Popis:	The peak energy resolution of germanium detectors deteriorates with increasing neutron fluence. This is due to hole capture at neutron-created defects in the crystal which prevents the full energy of the gamma-ray from being recorded by the detector. A phenomenological model of coaxial HPGe detectors is developed that relies on a single, dimensionless parameter that is related to the probability for immediate trapping of a mobile hole in the damaged crystal. As this trap parameter is independent of detector dimensions and type, the model is useful for predicting energy resolution as a function of neutron fluence. Comment: 7 pages, 7 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1112.2732 Zobrazit plný text záznamu View this record from Arxiv