Sawteeth-induced impurity transport in tokamak plasmas

Journal Article · Fri Mar 01 04:00:00 EST 1996 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.871800· OSTI ID:278993

Oedblom, A; Anderson, D; Eriksson, L; Lisak, M ^[1]

---

1. Institute for Electromagnetic Field Theory, Chalmers University of Technology, S-412 96 Goeteborg (Sweden)

A consistent picture of sawteeth-induced impurity transport is presented based on a recently given model for plasma redistribution by sawtooth crashes. The redistribution model is based on ideal magnetohydrodynamic conservation laws and assumes that the magnetic flux and the volume of the layers that reconnect during the crash are conserved. The post-crash redistributed impurity density is found in terms of the impurity density before the crash and the profiles of the safety factor before and after the crash. Comparisons with experimental results show good qualitative agreement. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 278993
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 3 Vol. 3; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DIFFUSION
ENERGY
MAGNETOHYDRODYNAMICS
PLASMA IMPURITIES
SAWTOOTH OSCILLATIONS
TOKAMAK DEVICES
TRANSPORT THEORY