早期発電実証炉の運転パラメータと先進トカマクの実現による運転領域拡大

概要

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Beam driven stable equilibria for a conceptual reactor, Demo-CREST, which was designed for early demonstration of electric power generation, has been investigated. Considering current profiles driven by neutral beams, the attainable normalized beta β_N with a stabilization wall is about 3.4 with a normal shear (NS). With reversed shear (RS), a higher β_N is attainable. The stable equilibria up to 4.0 can be sustained by a couple of On-and Off-axis beams. In the range of 1.9<β_N<4.0, power of each beam does not exceed the power in the case of β_N=1.9 which is the base design point of Demo-CREST. In the case of RS operation with β_N=4.0, the density ratio to the Greenwald limit can be maintain at about unity if high temperature operation with T_e>20keV is allowable.
社団法人プラズマ・核融合学会の論文
2004-03-25