R. Himawan Center for Reactor Technology and Nuclear Safety, National Nuclear Energy Agency, Puspiptek, Serpong, Tangerang 15314, Indonesia Indonesia
H. Katoh Department of Mechanical Engineering, Saitama University, Shimo-Okubo 255, Sakura-ku Saitama-shi, 338-8570, Japan Japan
A. Cahyono 3Center for Nuclear Intrumentation Engineering, National Nuclear Energy Agency Puspiptek, Serpong, Tangerang 15314, Indonesia Indonesia