Measurement of magnetic fluctuation-induced heat transport in tokamaks and RFP
- and others
It has long been recognized that fluctuations in the magnetic field are a potent mechanism for the anomalous transport of energy in confined plasmas. The energy transport process originates from particle motion along magnetic fields, which have a fluctuating component in the radial direction (perpendicular to the confining equilibrium magnetic surfaces). A key feature is that the transport can be large even if the fluctuation amplitude is small. If the fluctuations are resonant with the equilibrium magnetic field (i.e., the fluctuation amplitude is constant along an equilibrium field line) then a small fluctuation can introduce stochasticity to the field line trajectories. Particles following the chaotically wandering field lines can rapidly carry energy across the plasma.
- Research Organization:
- Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-96ER54345
- OSTI ID:
- 272512
- Report Number(s):
- DOE/ER/54345-276; CONF-9606226-4; ON: DE96006305; TRN: 96:017622
- Resource Relation:
- Journal Volume: 38; Journal Issue: 12A; Conference: 23. European Physical Society conference on controlled fusion and plasma physics, Kiev (Ukraine), 24-28 Jun 1996; Other Information: PBD: 1996
- Country of Publication:
- United States
- Language:
- English
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