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NEUTRON ACTIVATION OF SODIUM IN ANTHROPOMORPHOUS PHANTOMS

Journal Article · · Health Physics (England)
The feasibility of using phantoms filled with a homogeneous aqueous solution of NaCl in the determination of the relationship between neutron dose and Na/sup 24/ production was investigated using phantoms, burros, and the LASL Godiva II and ORNL Tower Shielding Facility II reactors. The Na/sup 24/ production per unit neutron dose was measured in manshaped phantoms, cylinders, and burros. It was found that: the ratio of the concentrations of Na/sup 24/ and Na/sup 23/, (Na/sup 23/Na/sup in circulated blood is equal to the ratio in the whole body; the inhomogeneity of the distribution of Na in living animals is not significant in the production of Na/sup 24/; a phantom filled with NaCl solution can be used to approximate a living animal in experiments involving the production of Na/sup 24/ by neutron irradiation; the size of a body and its orientation with respect to the source of neutrons has an effect on the magnitude of the Na/sup 24/ production; and if analyses of blood samples are used to determine Na/sup 24/ production in the burro, the exact time of sampling, within the range of 2--24 hr post-irradiation, is not important. (auth)
Research Organization:
Oak Ridge National Lab., Tenn.
Sponsoring Organization:
USDOE
NSA Number:
NSA-16-028998
OSTI ID:
4779284
Journal Information:
Health Physics (England), Journal Name: Health Physics (England) Vol. Vol: 8; ISSN HLTPA
Country of Publication:
Country unknown/Code not available
Language:
English

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