Meri Suhartini Puslitbang Teknologi Isotop dan Radiasi (P3TIR)-BATAN, Jl. Cinere-Pasar Jum'at, Jakarta 12720 Indonesia
Fumio Yoshii Japan Atomic Energy Research Institute, Takasaki Radiation Chemistry Research Establishment Watanuki-machi, Takasaki, Gamma 370-1292, Japan Japan
Naotsugu Nagasawa Japan Atomic Energy Research Institute, Takasaki Radiation Chemistry Research Establishment Watanuki-machi, Takasaki, Gamma 370-1292, Japan Japan