S. Sugiharto
Center for Isotopes and Radiation Application, National Nuclear Energy Agency, Jl. Lebak Bulus Raya No. 49, Jakarta 12440, Indonesia.
Indonesia

Wibisono Wibisono
Center for Isotopes and Radiation Application, National Nuclear Energy Agency, Jl. Lebak Bulus Raya No. 49, Jakarta 12440, Indonesia.
Indonesia

Kushartono Kushartono
Center for Isotopes and Radiation Application, National Nuclear Energy Agency, Jl. Lebak Bulus Raya No. 49, Jakarta 12440, Indonesia.
Indonesia

Achdiyat Achdiyat
Center for Isotopes and Radiation Application, National Nuclear Energy Agency, Jl. Lebak Bulus Raya No. 49, Jakarta 12440, Indonesia.
Indonesia

B. Azmi
Center for Isotopes and Radiation Application, National Nuclear Energy Agency, Jl. Lebak Bulus Raya No. 49, Jakarta 12440, Indonesia.
Indonesia

T. Suryantoro
Center for Radioactive Waste Technology, National Nuclear Energy Agency, Puspiptek Serpong, Tangerang 15310, Indonesia.
Indonesia

A. Yani
PT. Pertamina Geothermal Energy, Area Geothermal Energy Kamojang, Jl. Raya Kamojang, Kabupatan Bandung, Po. Box. 120, Garut 44101, Indonesia.
Indonesia

Z. Abidin
Center for Isotopes and Radiation Application, National Nuclear Energy Agency, Jl. Lebak Bulus Raya No. 49, Jakarta 12440, Indonesia. Star Energy, Jl. Letjen. S Parman Kav. 62-63, Wisma Barito Pacific Floor 8-11, Jakarta 11410, Indonesia.
Indonesia