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AlMisned G, Al-Abdullah T, Liadi F, Hawsawi A. Comparison between NIS and TNC channels for the detection of nickel in soil samples. Appl Radiat Isot 2022; 186:110303. [DOI: 10.1016/j.apradiso.2022.110303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 11/24/2022]
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Improving a PGNAA Technique to Detect Heavy Metals in Solid Samples. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12083714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
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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