Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9845863 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2005 | 8 Pages |
Abstract
Dependences of light yield and α/γ ratio on the Tl concentration have been studied within a wide range of shaping times. It is shown that the α/γ ratio essentially depends on the Tl concentration. Proper combination of the Tl concentration and optimum shaping time in electronics allows to obtain detectors with rather high light output for γ-rays, α-particles and α/γ ratio values. It has been shown that both the light yield at α-excitation and the α/γ-ratio depend on the time of crystal storage after polishing. On the basis of the idea of the formation of deformation-induced point defects in a thin surface-adjacent layer, the causes of the temporary increasing in light yield for α-particle are explained. An explanation is given of the results obtained by Gwin and Murray concerning the fact that the α/γ ratio is practically independent on Tl concentration.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Alexander M. Kudin, Elena P. Sysoeva, Elena V. Sysoeva, Larisa N. Trefilova, Dmitry I. Zosim,