T. Sutondo
Center for Accellerator Science and Technology, National Nuclear Energy Agency,
Jl. Babarsari, P.O. Box 6101 ykbb Yogyakarta 55281, Indonesia Indonesia
S Syarip
Center for Accellerator Science and Technology, National Nuclear Energy Agency,
Jl. Babarsari, P.O. Box 6101 ykbb Yogyakarta 55281, Indonesia Indonesia