Abstract
In this work, an alternative method to determine the U interference factor for 153Sm as a function of the decay time was studied aiming to take into account the time dependence arising from the spectral interference of 239Pu X-rays. An experimental interference factor and a theoretical equation dependent on the epithermal and thermal neutron fluxes and on the decay time were also proposed. These interference factors obtained from both, experimentally and using the theoretical equation were applied on the correction of the Sm concentration in the BCR-667 certified reference material with good results, showing the reliability of these correction factors.
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References
Landsberger S (1986) Spectral interference from uranium fission in neutron activation analysis. Chem Geol. 57:415–421
Landsberger S, Simsons A (1987) Quantification of uranium, thorium and gadolinium spectral interferences in instrumental neutron activation analysis of samarium. Chem Geol 62:223–226
Al-Jobori ISM, Al-Atia MJ, Hussien AK (1990) INAA of Zr, La, Ce and Nd in geological samples in the presence of different uranium concentrations. J Radioanal Nucl Chem 139:31–36
Tshiashala MD (2005) Instrumental neutron activation analysis in geochemistry: emphasis on spectral and uranium fission products interferences. J Radioanal Nucl Chem 265:511–514
Martinho E, Gouveia MA, Prudêncio MI, Reis MF, Cabral JM (1991) Factor for correcting the ruthenium interference in instrumental neutron activation analysis of barium in uraniferous samples. Appl Radiat Isot 42:1067–1071
Martinho E (1999) Determination of 235U abundance in uranium by neutron activation on the basis of molybdenum fission interference. J Radioanal Nucl Chem 241:271–275
Glascock MD, Nabelek PI, Winrich DD, Coveney RM (1986) Correcting for uranium fission in instrumental neutron activation analysis of high uranium Rocks. J Radioanal Nucl Chem 99:121–131
Campannesi G, Rosada A, Manigrasso M, Avino P (2012) Rare earth elements, thorium and uranium in ores of the North-Latium (Italy). J Radioanal Nucl Chem 291:163–168
Ribeiro IS Jr, Genezini FA, Saiki M, Zahn GS (2013) Determination of uranium fission interference factors for INAA. J Radioanal Nucl Chem 296:759–762
Chu Z, Guo J, Yang Y, Qi L, Li C (2014) Precise determination of Sm and Nd concentrations and Nd Isotopic Compositions in highly depleted ultramafic reference materials. Geostand Geoanal Res 38:61–72
Wasim M (2013) Interferences in instrumental neutron activation analysis by threshold reactions and uranium fission for miniature neutron source reactor. Radiochim Acta 101:601–606
De Soete D, Gilberts R, Hoste J (1972) Neutron activation analysis. Wiley, London
Firestone RB (1996) Table of isotopes. Wiley, New York
Mughabghab SF (2003) Thermal neutron capture cross sections resonance integrals and g-factors. Upton, New York
Laboratorie National Henri Bacquerel. Recommended data. http://www.nucleide.org/DDEP_WG/DDEPdata.html. Accessed 4 Feb 2014
Fission yields data table. Cumulative fission yields. http://www-nds.iaea.org/sgnucdat/c3.htm. Accessed 5 Feb 2014
Acknowledgments
The authors gratefully acknowledge the Brazilian National Council for Scientific and Technological Development (CNPq) for the financial support. The author I.S. Ribeiro Jr. thanks the Brazilian Nuclear Energy Commission (CNEN) for his fellowship.
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Ribeiro, I.S., Genezini, F.A., Saiki, M. et al. Samarium determination by neutron activation analysis in uranium-rich samples. J Radioanal Nucl Chem 305, 299–303 (2015). https://doi.org/10.1007/s10967-015-4066-9
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DOI: https://doi.org/10.1007/s10967-015-4066-9