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000860633 245__ $$aA stepladder approach to a tokamak fusion power plant
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000860633 520__ $$aWe present an approach to design in a consistent way a stepladder connecting ITER, DEMO and an FPP, starting from an attractive FPP and then locating DEMO such that main similarity parameters for the core scenario are constant. The approach presented suggests how to use ITER such that DEMO can be extrapolated with maximum confidence and a development path for plasma scenarios in ITER follows from our approach, moving from low β N and q typical for the present Q  =  10 scenario to higher values needed for steady state. A numerical example is given, indicative of the feasibility of the approach, and it is backed up by more detailed 1.5-D calculation using the ASTRA code. We note that ideal MHD stability analysis of the DEMO operating point indicates that it is located between the no-wall and the ideal wall β-limit, which may require active stabilization. The DEMO design could also be a pulsed fallback solution should a stationary operation turn out to be impossible.
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000860633 7001_ $$0P:(DE-HGF)0$$aTräuble, F.$$b1
000860633 7001_ $$0P:(DE-Juel1)129967$$aBiel, W.$$b2$$eCorresponding author$$ufzj
000860633 7001_ $$0P:(DE-HGF)0$$aFable, E.$$b3
000860633 7001_ $$0P:(DE-HGF)0$$aKemp, R.$$b4
000860633 7001_ $$0P:(DE-HGF)0$$aLux, H.$$b5
000860633 7001_ $$0P:(DE-HGF)0$$aSiccinio, M.$$b6
000860633 7001_ $$0P:(DE-HGF)0$$aWenninger, R.$$b7
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