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NRC wants input on Hermes 2 test reactor construction permit
The Nuclear Regulatory Commission is seeking input on its draft environmental assessment and draft finding of no significant impact for Kairos Power’s application to build the Hermes 2 test reactor facility in Oak Ridge, Tenn.
Osamu Mitarai, Akira Hirose, Harvey M. Skarsgard
Fusion Science and Technology | Volume 23 | Number 1 | January 1993 | Pages 79-91
Technical Paper | Alpha Particle | doi.org/10.13182/FST93-A30122
Articles are hosted by Taylor and Francis Online.
It is shown that a tokamak with a major radius larger than ∼6 m and a toroidal field of 10 T can reach ignition by ohmic heating alone at a relatively low peak density [n(0) ∼ 1 × 1020 m−3] even with confinement degradation due to alpha-particle heating, provided a confinement enhancement factor of γH = 2 over the Goldston scaling is assumed. The critical toroidal field and plasma current required for ohmic ignition have been estimated for various sizes of tokamaks with major radii R = 2 m (compact), 6 m [International Thermonuclear Experimental Reactor (ITER) class], and 10 m (large tokamaks). If a broad current profile can be achieved transiently, the critical toroidal field and plasma current can be further reduced by the enhancement in the ohmic heating power.