Published October 2013
| Version v1
Journal article
Does the orbit-averaged theory require a scale separation between periodic orbit size and perturbation correlation length?
Creators
- 1. Department of Physics and Astronomy, University of California, Irvine, California 92697 (United States)
- 2. Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)
- 3. Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)
- 4. Fusion Simulation Center, Peking University, Beijing 100871 (China)
Description
Using the canonical perturbation theory, we show that the orbit-averaged theory only requires a time-scale separation between equilibrium and perturbed motions and verifies the widely accepted notion that orbit averaging effects greatly reduce the microturbulent transport of energetic particles in a tokamak. Therefore, a recent claim [Hauff and Jenko, Phys. Rev. Lett. 102, 075004 (2009); Jenko et al., ibid. 107, 239502 (2011)] stating that the orbit-averaged theory requires a scale separation between equilibrium orbit size and perturbation correlation length is erroneous
Additional details
Identifiers
- DOI
- 10.1063/1.4820804;
Publishing Information
- Journal Title
- Physics of Plasmas
- Journal Volume
- 20
- Journal Issue
- 10
- Journal Page Range
- p. 102306-102306.6
- ISSN
- 1070-664X
- CODEN
- PHPAEN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45039487
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- CHARGED-PARTICLE TRANSPORT; CORRELATIONS; LENGTH; ORBITS; PERIODICITY; PERTURBATION THEORY; PLASMA; PLASMA CONFINEMENT; TOKAMAK DEVICES; TURBULENCE
- Descriptors DEC
- CLOSED PLASMA DEVICES; CONFINEMENT; DIMENSIONS; RADIATION TRANSPORT; THERMONUCLEAR DEVICES; VARIATIONS
Optional Information
- Notes
- (c) 2013 AIP Publishing LLC