Monte Carlo Simulation on a Neutralization Process of an Accelerated Compact Torus Plasma

Fujii, Shyunichi; Ohshima, T.; Takahashi, Toshiki; Fukumoto, N.; Nagata, Masayoshi

doi:10.1109/tps.2010.2045397

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“…However, its feasibility is still unclear because of the difficulty concerning the translation process of a plasmoid across the vertical magnetic field of the fuel injection target. To solve this problem, the "CT Neutralization Fuel Injection" method has been proposed [3]. This method utilizes a neutralization cell which transforms the injection plasmoid into an ultra-fast neutral gas flow.…”

Section: Introductionmentioning

confidence: 99%

Computation of Neutral Gas Flow Generation From a CT Neutralization Fuel-Injector

Watanabe

Ohshima

Takahashi

et al. 2012

Plasma and Fusion Research

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The feasibility of compact torus (CT) neutralization fuel injection method is studied by a simulation model using particle and MHD hybrid techniques. The neutralization process is simulated by using rate-coefficients. The magnetic and electric fields are found to respond sluggishly to the neutralization process. Slow ions generated by charge-exchange have been added to the model, although the CT neutralization process was not significantly affected by this. Finally, the minimum length for the CT neutralizer is proposed as 2 m from the simulation run time 10 µs at a CT injection speed of 200 km/s.

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Section: Introductionmentioning

confidence: 99%