期刊
APPLIED SCIENCES-BASEL
卷 12, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/app12083714
关键词
CeBr3 detector; 2.5 MeV neutrons; neutron inelastic scattering; minimum detection concentrations
类别
资金
- Deanship of Scientific Research, Princess Nourah bint Abdulrahman University, through the Research Funding Program [FRP-1440-18]
Prompt gamma-ray neutron activation analysis (PGNAA) is a non-destructive method for determining element concentrations in natural materials. This study improved the detection sensitivity by optimizing the setup.
Prompt gamma-ray neutron activation analysis (PGNAA) is a useful approach for determining the concentrations of a variety of elements in natural materials, either online or in situ, without affecting their chemical forms in matter. The current research aimed to improve the yield of a portable PGNAA setup using a dc beam of 2.5 MeV neutrons and a CeBr3 detector to record gamma rays from neutron inelastic scatterings. It is impossible to avoid the superimposition of heavy metal gamma rays and those from the detector's element. However, tests were carried out to improve the signal-to-background ratio. By assessing the minimum detectable concentrations (MDC) of chrome, titanium, and zinc in soil samples, the effectiveness of the new optimization was confirmed. The study shows an improvement in the MDC values.
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