Analysis of plutonium isotope ratios including 238Pu/239Pu in individual U-Pu mixed oxide particles by means of a combination of alpha spectrometry and ICP-MS
A combination of alpha spectrometry and ICP-MS was used for measurements. Plutonium isotope ratios in individual U–Pu mixed oxide particles were determined. 238Pu/239Pu ratios were calculated from 238Pu/(239Pu+240Pu) and 240Pu/239Pu ratios