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Radioisotopes Produced by Neutron Irradiation of Food

Seviour, Rebecca and Albright, Simon (2016) Radioisotopes Produced by Neutron Irradiation of Food. Applied Radiation and Isotopes, 110. pp. 224-229. ISSN 0969-8043

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The use of neutrons for cargo interrogation has the potential to drastically improve threat detection. Previous research has focussed on the production of 24Na, based on the isotopes produced in pharmaceuticals and medical devices. For both the total acitivity and the ingestion dose we show that a variety of isotopes contribute and that 24Na is only dominant under certain conditions. The composition of the foods has a strong influence on the resulting activity and ingestion dose suggesting that the pharmaceuticals and medical devices considered initially are not a viable analogue for foodstuffs.
There is an energy dependence to the isotopes produced due to the cross-sections of different reactions varying with neutron energy. We show that this results in different isotopes dominating the ingestion dose at different energies, which has not been considered in previous literature.

Item Type: Article
Uncontrolled Keywords: Ingestion Dose, Cargo Interrogation, Food Activation, Induced Activity, Neutron Activation
Subjects: Q Science > QC Physics
T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Schools: School of Computing and Engineering
Related URLs:
Depositing User: Rebecca Seviour
Date Deposited: 17 Dec 2015 11:34
Last Modified: 31 Mar 2018 08:30


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