A kinetic model of transient effects in tokamak edge plasmas

Journal Article · Wed May 01 04:00:00 EDT 1996 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.872023· OSTI ID:280160

Batishcheva, A A ^[1]; Batishchev, O V ^[1]; Shoucri, M M ^[2]; Krasheninnikov, S I ^[1]; Catto, P J ^[1]; Shkarofsky, I P ^[2]; Sigmar, D J ^[1]

---

1. MIT Plasma Fusion Center, Cambridge, Massachusetts 02139 (United States)
2. Centre Canadien de Fusion Magnetique, Varennes, Quebec (Canada)

Fluid descriptions are not adequate for edge plasma studies when the high collision frequency assumption fails in the presence of rapid transient processes. The results of analytic and numerical modeling of some of the non-Maxwellian features of edge plasma transport associated with transient heating and cooling phenomena in the scrape-off layer are presented. It is found that kinetic effects alter the heat conduction coefficient and lead to interesting critical behavior of the distribution function. The numerics are performed with the recently developed time-dependent Fokker{endash}Planck code ALLA. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 280160
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 3; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPUTER CODES
FOKKER-PLANCK EQUATION
KINETIC EQUATIONS
PLASMA HEATING
PLASMA SCRAPE-OFF LAYER
TOKAMAK DEVICES
TRANSIENTS
TRANSPORT THEORY