One candidate method based on short-lived indicator for burnup analysis

One novel gamma spectrometry method based on short-lived fission products was developed that can infer the level of burnup without complex computations or knowing irradiation history. The relationship between the burnup information and equilibrium concentration of short-lived indicators was derived. In addition, new candidate indicators for gamma spectrum analysis, such as 88Kr, 91Sr, 92Sr, 135I and 142La were screened out. The results of three cases simulated with ORIGEN and MCNP were in good agreement with the theoretical values.