Investigation on the nuclear track techniques for the screening of the fissile nuclides in swipe samples

Nuclear track techniques were investigated for the screening of fissile nuclides in swipe samples. The characteristics of fission and alpha track analysis for the uranium particles were investigated in this study. The estimation of 235U enrichment for the uranium particles was performed by the fission track analysis. After identifying the uranium particles with fission track analysis in swipe samples, the 235U enrichment of the uranium particles was measured by thermal ionization mass spectrometry (TIMS).