Non-destructive determination of 235U, 238U, 232Th and 40K concentrations in various consumed nuts and their implication on radiation dose levels to the human body
The naturally occurring radionuclides of 238,235,234 U, 232 Th and 40 K and their daughter products are a potential source of radiation found in food. We have determined these five radiation sources in five popular consumed nuts. We used the following neutron activation analysis reactions of 238 U(n...
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Veröffentlicht in: | Journal of radioanalytical and nuclear chemistry 2016-02, Vol.307 (2), p.1065-1068 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The naturally occurring radionuclides of
238,235,234
U,
232
Th and
40
K and their daughter products are a potential source of radiation found in food. We have determined these five radiation sources in five popular consumed nuts. We used the following neutron activation analysis reactions of
238
U(n,γ)
239
U,
232
Th(n,γ)
233
Th and
41
K(n,γ)
42
K to determine
238
U and
232
Th and
40
K, respectively. Using known activity ratios of uranium stable isotopes we determined the activity of
234,235
U, while
40
K was found by the determined concentrations of
41
K in the nuts. While the radiation doses are small we have established a reliable methodology to determine these radionuclides in typical edible nuts. |
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ISSN: | 0236-5731 1588-2780 |
DOI: | 10.1007/s10967-015-4329-5 |