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239Pu, 240Pu, and 241Am determination in hot particles by low level gamma-spectrometry

AuthorsJiménez-Ramos, M. C. ; Chamizo, Elena ; García-Tenorio, R.
Issue Date2010
PublisherAmerican Chemical Society
CitationEnvironmental Science and Technology 44(11): 4247-4252 (2010)
AbstractA nondestructive method based on low-energy, high-resolution photon spectrometry is presented which allows accurate determination of 239Pu, 240Pu, and 241Am (as a daughter of 241Pu) activities in radioactive particles containing relatively high levels of plutonium isotopes. The proposed method requires only one measurement for the establishment of an absolute efficiency curve. Since the density and composition of the radioactive particles of interest may vary, a self-absorption correction is required for the accurate determination of isotopic activities and ratios. This correction is carried out for each individual particle using the convenient gamma-ray emissions of 241Am. © 2010 American Chemical Society.
Identifiersdoi: 10.1021/es100425x
issn: 0013-936X
e-issn: 1520-5851
Appears in Collections:(CNA) Artículos
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