High energetic neutral particle beam injection (NBI) is one of most important methods for core auxiliary heating and non-inductive current drive of plasma in nuclear fusion devices. Based on the requirements of present National Science Mission-EAST (experimental advanced superconducting tokamak) system

an NBI project with delivery power up to 8 MW was proposed and the related consideration both on engineering and physics was on the way. The project of the EAST NBI is presented in this paper

including requirement of physics and engineering

estimation of the neutral beam transmission in the EAST plasma

etc.