Sheath limited

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The sheath-limited regime is a state in which the Scrape-Off Layer is approximately isothermal along each flux tube (poloidal variation is insignficant), such that the plasma sheath is the only important part of the edge plasma with respect to the transport of particles and power between the confined plasma and the solid surface of the divertor target plate.[1] This is a strongly attached plasma state.

The "limited" in "sheath limited" does not set any limit on power reaching the divertor; it is the state of the SOL that is limited or determined.[1]

Compare with conduction limited, high recycling, strongly radiating, and detached divertor regmines.

  1. ↑ 1.0 1.1 P. Stangeby, "The Plasma Boundary of Magnetic Fusion Devices" (2000) p.52
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