A simple way of varying the source efficiency for the extrapolation method in 4π(PC)-γ coincidence counting

✍ Scribed by Vladimir Zajíc

• Publisher: Elsevier Science
• Year: 1987
• Weight: 319 KB
• Volume: 38
• Category: Article
• ISSN: 0883-2889
• DOI: 10.1016/0883-2889(87)90203-6

✦ Synopsis

A simple way of varying the source efficiency in 4n(PCt_y coincidence counting is described. A wet source is put into the 47~ flow proportional counter and measured repeatedly; the 4x(PC) counting efficiency increases smoothly to a maximum value as the water evaporates. It is possible to reproduce the measurement with the same source by rewetting it. The method has been applied to more than 20 radionuclides and the accuracy of the extrapolation improved significantly.