title: Determination of 241Pu in nuclear waste slurries: a comparative study using LSC and ICP-MS.
abstract: (241)Pu was determined in slurry samples from a nuclear reactor decommissioning project at the Paul Scherrer Institute (Switzerland). To validate the results, the (241)Pu activities of five samples were determined by LSC (TriCarb and Quantulus) and ICP-MS, with each instrument at a different laboratory. In lack of certified reference materials for (241)Pu, the methods were further validated using the (241)Pu information values of two reference sediments (IAEA-300 and IAEA-384). Excellent agreement with the results was found between LSC and ICP-MS in the nuclear waste slurries and the reference sediments.
authors.affiliation: Department Logistics for Radiation Safety and Security, Radioanalytics, Villligen PSI, Switzerland. maya.jaeggi@psi.ch
authors.forename: M
authors.initials: M
authors.lastname: Jäggi
authors.forename: S
authors.initials: S
authors.lastname: Röllin
authors.forename: J A Corcho
authors.initials: JA
authors.lastname: Alvarado
authors.forename: J
authors.initials: J
authors.lastname: Eikenberg
mesh_terms: D004784:Environmental Monitoring / Q000379:methods; D019015:Geologic Sediments / Q000032:analysis; D013058:Mass Spectrometry / Q000379:methods; D011005:Plutonium / Q000032:analysis*; D011850:Radioactive Waste / Q000032:analysis*; D011868:Radioisotopes / Q000032:analysis; D012588:Scintillation Counting / Q000379:methods; D013054:Spectrophotometry, Atomic / Q000379:methods; D013557:Switzerland; D014875:Water Pollutants, Radioactive / Q000032:analysis
chemical_list: D011850:Radioactive Waste; D011868:Radioisotopes; D014875:Water Pollutants, Radioactive; D011005:Plutonium