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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of radioanalytical and nuclear chemistry 2016-02, Vol.307 (2), p.1065-1068
Hauptverfasser: Landsberger, S., Tamalis, D., Lara, R.
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
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.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-015-4329-5