Prototype system for the rapid measurement of 16
alpha- and beta-emitting radioisotopes: 233U, 234U, 235U,
236U, 238U, 239Pu, 240Pu, 241Pu,
242Pu, 237Np, 241Am, 243Am, 90Sr,
229Th, 230Th, 232Th. This new system,
developed by the LMRE team (thesis by A. Habibi) uses a liquid chromatography module coupled with a quadripolar ICP-MS system.
The protocol used can quantify these radionuclides in less than two hours, compared to several weeks using conventional protocols, albeit with reduced sensitivity but still suitable for emergency situations. The detection limit is from one µBq/kg to around a hundred Bq/kg depending on the radioisotope in question.
Azza Habibi, in front of the rapid measurement tool of alpha and beta emitters she developed during her thesis, coupling a liquid chromatography module to an ICP-MS mass spectrometer. Nicolas Cariou, technician, in front of the ICP-MS magnetic sector. © Francesco Acerbis/IRSN
LMRE also has a high-resolution magnetic-sector ICP-MS system. This is 10 times more sensitive than the quadripolar ICP-MS. It is used to quantify isotopes that are not abundant in nature, such as 239Pu, 240Pu and 241Pu.
Sample introduction system in the ICP-MS magnetic sector.
© Francesco Acerbis/IRSN