【摘 要】
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Experiments show that helium ash can be removed by pump limiter or divertor. However a fraction of α particles has not been pumped out after they get neutrali
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Experiments show that helium ash can be removed by pump limiter or divertor. However a fraction of α particles has not been pumped out after they get neutralized on the limiter or divertor target plate, but re-ionized by edge plasma; as a result, they flow back to the SOL region and even diffuse into main plasma. A new method has been explored to suppress this back stream,
Experiments show that helium ash can be removed by pump limiter or divertor. However a fraction of α particles has not been pumped out after they get neutralized on the limiter or divertor target plate, but re-ionized by edge plasma; as a result, they flow back to the SOL region and even diffuse into main plasma. A new method has been explored to suppress this back stream,
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