SAP2014 - List of Authors (Xu, Y.)

Paper	Title	Page
WEPH32	Measurement of Key Parameters for EAST Neutral Beam Injector	87
	Y. Xu, C.D. Hu, L.Z. Liang, S. Liu, Z.M. Liu, P. Sheng, Y.H. Xie ASIPP, Hefei, People's Republic of China
	Funding: Supported by the National Magnetic Confinement Fusion Science Program of China (2013GB101000). Neutral beam injection is recognized as one of the most effective means of plasma heating. The target values of EAST Neutral beam injector (NBI) are beam energy 50-80kev, injection beam total power 2-4 MW, beam pulse width 10-100s. The beam power will deposit on the beam collimator due to the beam divergence and it will cause heat damage to heat load components, or even destroy the entire NBI system. In order to decrease the risk, the key parameters of NBI, such as divergence angle, beam power density distribution, neutralizing efficiency, the beam power deposited on heat load components, should be assessed. In this article, the calculation principles and experimental results are given. The results direct the operation parameter optimization of EAST NBI and lay a solid foundation for realization of plasma heating for EAST.

Paper

Title

Page

Measurement of Key Parameters for EAST Neutral Beam Injector

87

Y. Xu, C.D. Hu, L.Z. Liang, S. Liu, Z.M. Liu, P. Sheng, Y.H. Xie
ASIPP, Hefei, People's Republic of China

Funding: Supported by the National Magnetic Confinement Fusion Science Program of China (2013GB101000).
Neutral beam injection is recognized as one of the most effective means of plasma heating. The target values of EAST Neutral beam injector (NBI) are beam energy 50-80kev, injection beam total power 2-4 MW, beam pulse width 10-100s. The beam power will deposit on the beam collimator due to the beam divergence and it will cause heat damage to heat load components, or even destroy the entire NBI system. In order to decrease the risk, the key parameters of NBI, such as divergence angle, beam power density distribution, neutralizing efficiency, the beam power deposited on heat load components, should be assessed. In this article, the calculation principles and experimental results are given. The results direct the operation parameter optimization of EAST NBI and lay a solid foundation for realization of plasma heating for EAST.