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Prompt loss of energetic ion in tokamak

Mou Mao-Lin Liu Yu Wang Zhong-Tian Chen Shao-Yong Tang Chang-Jian

Prompt loss of energetic ion in tokamak

Mou Mao-Lin, Liu Yu, Wang Zhong-Tian, Chen Shao-Yong, Tang Chang-Jian
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  • Received Date:  17 March 2014
  • Accepted Date:  16 April 2014
  • Published Online:  20 August 2014

Prompt loss of energetic ion in tokamak

  • 1. College of Physical Science and Technology, Sichuan University, Chengdu 610065, China;
  • 2. Southwestern Institute of Physics, Chengdu 610041, China
Fund Project:  Project supported by the Chinese Fusion Research Program for International Thermonuclear Experimental Reactor (Grant No. 2013GB107002).

Abstract: The full orbit of energetic ion in tokamak is simulated by strictly solving Hamiltonian equations in guiding center coordinate system, and the semi-trapped orbit which is predicted in a recent theoretical research and the stagnation orbit are confirmed by the presently developed full orbit theory. The prompt loss of the energetic particle in international thermonuclear experimental reactor is calculated according to the present full orbit theory. It is found that the prompt loss rate of energetic ion in the full orbit theory can be larger than 14% the result in gyro-averaged theory, and the detailed analysis is carried out and physical understanding is presented in this paper.

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