The half-life of 131g,mTe

In this work, the half-lives of 131mTe and 131gTe were measured. Radioactive sources of 131Te were obtained using the 130Te(n,γ)131Te nuclear reaction. These nuclear parameters have been determined with a better confidence and accuracy than previously available: 18.89 ± 0.11 min and 33.18 ± 0.13 h, respectively. These results are quite helpful for new calculations that attempt to describe the low-lying levels in 131I from the decay of 131g,mTe.