E. Damastuti
Center for Nuclear Technology of Material and Radiometry, National Nuclear Energy Agency, Tamansari 71, Bandung 40132, Indonesia
Indonesia

W.D. Ariyani
Faculty of Civil and Environmental Engineering, Bandung Institute of Technology, Ganesha 10, Bandung 40132, Indonesia
Indonesia

M. Santoso
Center for Nuclear Technology of Material and Radiometry, National Nuclear Energy Agency, Tamansari 71, Bandung 40132, Indonesia
Indonesia

S. Kurniawati
Center for Nuclear Technology of Material and Radiometry, National Nuclear Energy Agency, Tamansari 71, Bandung 40132, Indonesia
Indonesia

WYN. Syahfitri
Center for Nuclear Technology of Material and Radiometry, National Nuclear Energy Agency, Tamansari 71, Bandung 40132, Indonesia
Indonesia