T. Setiadipura Center forNuclear Reactor Technology and Safety, National Nuclear Energy Agency,
Puspiptek Area, Serpong Tangerang 15310, Indonesia Indonesia
D. Irwanto Nuclear Physics and Biophysics Research Group, Pyshics Dept., Bandung Institute of Technology
Jl. Ganesha 10, Bandung 40132, Indonesia Indonesia
Zuhair Zuhair Center forNuclear Reactor Technology and Safety, National Nuclear Energy Agency,
Puspiptek Area, Serpong Tangerang 15310, Indonesia Indonesia