Sheath limited: Difference between revisions
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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 <math>T_e</math> 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.<ref name=stangeby_book_p52>[[doi:10.1201/9780367801489|P. Stangeby, "The Plasma Boundary of Magnetic Fusion Devices" (2000) p.52]]</ref> This is a strongly [[Detachment|attached]] plasma state. | The sheath-limited regime is a state in which the [[Scrape-Off Layer]] is approximately isothermal along each flux tube (poloidal <math>T_e</math> 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.<ref name=stangeby_book_p52>[[doi:10.1201/9780367801489|P. Stangeby, "The Plasma Boundary of Magnetic Fusion Devices" (2000) p.52]]</ref> This is a strongly [[Detachment|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.<ref stangeby_book_p52></ref> | 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.<ref name=stangeby_book_p52></ref> | ||
Compare with [[conduction limited]], [[high recycling]], [[strongly radiating]], and [[Detachment|detached divertor]] | Compare with [[conduction limited]], [[high recycling]], [[strongly radiating]], and [[Detachment|detached divertor]] regimes. | ||