Characterization of spent nuclear fuel dissolver solutions and dissolution residues by inductively coupled plasma mass spectrometry
The direct analysis of dissolved spent nuclear fuel by inductively coupled plasma mass spectrometry (ICP-MS) allows the elemental and isotopic composition of the irradiated fuel to be determined without any chemical separation. A qualitative evaluation was carried out on the effects of fission, beta-decay and neutron-capture reactions during fuel irradiation. Comparison of the semiquantitative data with computer predictions of fission products inventory showed satisfactory agreement. The analysis of small spent fuel samples of ICP-MS was used to assess the type and irradiation of the fuel in pattern recognition studies. Isotope dilution analysis was applied for polyisotopic elements; standard additions with an internal standard was used for monoisotopic elements. Elements determined in the residue included Zr, Mo, Tc, Ru, Rh Pd, U and Pu. Neodymium was also determined in dissolver solutions of fast neutron-irradiated fuels and the results were compared with those given by thermal ionisation mass spectrometry.
Bibliographic Reference: Article: Journal of Analytical Atomic Spectrometry, Vol. 9 (1994) pp. 1209-1215
Record Number: 199510052 / Last updated on: 1995-01-10
Original language: en
Available languages: en