Transuranic elements determination in spanish NPP-wastes on the basis of gross alpha activity
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M. Rodríguez
Summary
The characterisation of alpha-emitting nuclides in low and medium level radioactive waste from Spanish nuclear power reactors leads to several difficulties because they cannot be assayed by non-destructive methods due to their low concentration. Thus, long and complex radiochemical procedures are required.
In this paper an alternative method for establishing a sufficiently accurate and reliable inventory of long-lived alpha emitting nuclides, is described. The method is based on the application of the factors obtained by correlating the gross alpha activity and the concentration of 238Pu, 239/40Pu, 241Am, 242Cm and 244Cm in a set of samples of concentrates and resins from Spanish NPP's.
Several statistical tests are performed to evaluate the validity of the assumed relationship and the quality of the correlation. Also, uncertainties are calculated for the parameters of the linear equation relating the concentrations.
This work has been performed in the framework of the CIEMAT-ENRESA Association Agreement.
© Oldenbourg Wissenschaftsverlag, München
Artikel in diesem Heft
- Cross section data for the production of the positron emitting niobium isotope 90Nb via the 90Zr(p, n)-reaction
- Transuranic elements determination in spanish NPP-wastes on the basis of gross alpha activity
- A comparative evaluation of synergistic extraction behaviour of hexavalent uranium with thenoyl tri-fluoro-acetone (HTTA) and 1-phenyl, 3-methyl, 4-benzoyl pyrazolone-5 (HPMBP) using mono-functional and bi-functional neutral donors
- Transport of Th(IV) and U(VI) through barium silico-phosphate composite membrane using electric field
- Evaluation of the complexation behavior between humic acid and UO22+ with fluorescence spectroscopy and its mixture analysis
- Investigation of sorption of Tb(III) by 2-thenoyltrifluoroacetone supported onto polyurethane foam
- Selective carrier-mediated cesium transport through polymer inclusion membranes by calix[4]arene-crown-6 carriers from complex aqueous mixtures
- Adsorption studies of zinc ions on barium titanate from aqueous solution
- The enrichment of magnesium isotopes by AM15C5 bonded ion exchanger
Artikel in diesem Heft
- Cross section data for the production of the positron emitting niobium isotope 90Nb via the 90Zr(p, n)-reaction
- Transuranic elements determination in spanish NPP-wastes on the basis of gross alpha activity
- A comparative evaluation of synergistic extraction behaviour of hexavalent uranium with thenoyl tri-fluoro-acetone (HTTA) and 1-phenyl, 3-methyl, 4-benzoyl pyrazolone-5 (HPMBP) using mono-functional and bi-functional neutral donors
- Transport of Th(IV) and U(VI) through barium silico-phosphate composite membrane using electric field
- Evaluation of the complexation behavior between humic acid and UO22+ with fluorescence spectroscopy and its mixture analysis
- Investigation of sorption of Tb(III) by 2-thenoyltrifluoroacetone supported onto polyurethane foam
- Selective carrier-mediated cesium transport through polymer inclusion membranes by calix[4]arene-crown-6 carriers from complex aqueous mixtures
- Adsorption studies of zinc ions on barium titanate from aqueous solution
- The enrichment of magnesium isotopes by AM15C5 bonded ion exchanger
