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Heating Effects of Background Neutral Particles on a Translated Field-Reversed Configuration

S. Koike, T. Watanabe, T. Mitsui, T. Takahashi, T. Asai

Fusion Science and Technology / Volume 63 / Number 1T / May 2013 / Pages 377-379

Heating effects of translated field-reversed configuration plasma into a chamber where neutral particles are filled is investigated by numerical calculation. Here, neutral particle species of deuterium, helium, and argon atoms are considered and translation speed is over 100 km/s. The calculation results show helium atoms penetrate most deeply into the plasma. Although argon ions that have the largest mass can transfer most their translation energy relative to the FRC plasma, energy recovery rate is found to be low due to the orbit loss.

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