Sulistioso Giat S. Center For Technology of Nuclear Industry Materials (PTBIN)-BATAN Kawasan Puspiptek Serpong 15314, Tangerang, Indonesia
A Sitompul Center For Technology of Nuclear Industry Materials (PTBIN)-BATAN Kawasan Puspiptek Serpong 15314, Tangerang, Indonesia
M. N. Indro Department of Physics, IPB Jl. Meranti, Darmaga, Bogor 16680, Indonesia
A Rahmatika Department of Physics, IPB Jl. Meranti, Darmaga, Bogor 16680, Indonesia