Calculation of Beam Intensity Distribution for the Neutral Beam Injection in EAST

LIANG Lizhen; HU Chundong; XIE Yuanlai; GUO Qiang; XIE Yahong

Plasma Science and Technology > 2011 > 13(4): 502-505.

LIANG Lizhen, HU Chundong, XIE Yuanlai, GUO Qiang, XIE Yahong. Calculation of Beam Intensity Distribution for the Neutral Beam Injection in EAST[J]. Plasma Science and Technology, 2011, 13(4): 502-505.

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Calculation of Beam Intensity Distribution for the Neutral Beam Injection in EAST

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China

Funds: Supported by National Natural Science Foundation of China (No. 10875146) and the Knowledge Innovation Project of the Chinese Academy of Sciences in ‘The Study of the Key Technical and Physical Problems for a Steady-state Operated Neutral Beam .

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Received Date: December 23, 2009

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Abstract

Abstract

Theoretical beam intensity distribution is derived for the neutral-beam- injection ion source with a multi-slot extraction in EAST. The beam intensity profile, both along and perpendicular to the injecting direction and the beam power deposition to the inner elements in the neutral beam injector (NBI) are evaluated. The results indicate that the transverse beam intensity is much higher than the longitudinal one. This study could provide information for the design of vacuum system, structure of inner elements and cooling system of the neutral beam injector in EAST.
- Neutral beam injection,
- beam intensity profile,
- multi-slots extraction system

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