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Type: 
Journal
Description: 
The effects of different passivation methods applied to the same planar high-purity germanium gamma radiation detector have been studied. By means of the scanning with a low-energy collimated gamma source, it has been found that the surface passivation gives rise to a dead layer below the intrinsic Ge surface, whose thickness and distribution are strongly dependent on the passivation type. Measured bulk detector properties like the peak-to-Compton ratio and efficiency have shown a dependence on the passivation and an influence of the passivation type on the depletion voltage, whilst the optimal energy resolution has been the same for all the passivations.
Publisher: 
Springer Berlin Heidelberg
Publication date: 
1 Nov 2015
Authors: 

G Maggioni, DR Napoli, J Eberth, M Gelain, S Carturan, MG Grimaldi, S Tatì

Biblio References: 
Volume: 51 Issue: 11 Pages: 141
Origin: 
The European Physical Journal A