Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8208503 | Applied Radiation and Isotopes | 2018 | 15 Pages |
Abstract
A thin 5-mm NaI(Tl) scintillator detector was tested with the goal of enhancing the detection efficiency of 241Am gamma and X rays for steelworks operations. The performance of a thin (5â¯mm) NaI(Tl) detector was compared with a standard 76.2-mm thick NaI(Tl) detector. The 5-mm thick detector crystal results in a 55% smaller background rate at 60â¯keV compared with the thicker detector, translating into the ability to detect 30% weaker 241Am sources. For a 5â¯mm thick and 76.2â¯mm diameter NaI detector in the ladle car tunnel at Outokumpu Tornio Works, the minimum activity of a molten 241Am source that can be detected in 5â¯s with 95% probability is 9 MBq.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Pauli Peura, Camille Bélanger-Champagne, Paula Eerola, Peter Dendooven, Eero Huhtalo,