Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1878647 | Applied Radiation and Isotopes | 2014 | 5 Pages |
Abstract
In order to clarify the γ-efficiency dependency of 4Ïβ-γ efficiency functions, a series of 4Ïβ-γ efficiency extrapolation measurements of a 134Cs source were carried out for a wide variety of γ-geometries using a 4Ïβ(PS)-4Ïγ detector configuration. As the source is situated in the plastic scintillator (PS) β-detector, the γ-efficiency of the system can be readily changed by extracting the β-detector from the well-hole in a series of stages. For data acquisition and analyses, a list-mode two-parameter data acquisition system was employed. The forms of the extrapolation curves were monitored with decreasing γ-geometry, eventually exhibiting a similar behavior to those obtained in a usual 4Ïβ-γ coincidence counting system. The experimental results and considerations suggested that the γ-geometry dependency of the efficiency functions were due to summing effects in the γ-channel, and some qualitative remarks on the form of the extrapolation functions are given.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Y. Kawada, A. Yunoki, T. Yamada, Y. Hino,