Huynh, C., Luu, D., Vo, N., Tran, T., & Chau, T. (2016). An analytical calculation model of the full energy peak efficiency for cylindrical detectors used in assays of radioactive waste drums. VNUHCM Journal of Science and Technology Development, 19(2), 71-80. https://doi.org/https://doi.org/10.32508/stdj.v19i2.805