Laboratory Evidence for Stochastic Plasma-Wave Growth
Journal Article
·
· Physical Review Letters
- School of Physics, University of Sydney, New South Wales, 2006 (Australia)
- Laboratorio Associado de Plasma-LAP, Instituto Nacional de Pesquisas Espaciais-INPE/MCT, CP 515, 12201-970, Sao Jose dos Campos, SP (Brazil)
The first laboratory confirmation of stochastic growth theory is reported. Floating potential fluctuations are measured in a vacuum arc centrifuge using a Langmuir probe. Statistical analysis of the energy density reveals a lognormal distribution over roughly 2 orders of magnitude, with a high-field nonlinear cutoff whose spatial dependence is consistent with the predicted eigenmode profile. These results are consistent with stochastic growth and nonlinear saturation of a spatially extended eigenmode, the first evidence for stochastic growth of an extended structure.
- OSTI ID:
- 21024473
- Journal Information:
- Physical Review Letters, Vol. 99, Issue 20; Other Information: DOI: 10.1103/PhysRevLett.99.205004; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
Similar Records
The Center for Momentum Transport and Flow Organization in Plasmas - Final Scientific Report
Statistics of beam-driven waves in plasmas with ambient fluctuations: Reduced-parameter approach
Active Measurement of Plasma Parameters in Over-Dense MFE Reactor Plasma Using High Frequency Beat-Wave Resonantly Generated Thermal Bernstein Waves
Technical Report
·
Mon Dec 14 00:00:00 EST 2015
·
OSTI ID:21024473
Statistics of beam-driven waves in plasmas with ambient fluctuations: Reduced-parameter approach
Journal Article
·
Mon Sep 15 00:00:00 EDT 2008
· Physics of Plasmas
·
OSTI ID:21024473
Active Measurement of Plasma Parameters in Over-Dense MFE Reactor Plasma Using High Frequency Beat-Wave Resonantly Generated Thermal Bernstein Waves
Technical Report
·
Mon Oct 21 00:00:00 EDT 2019
·
OSTI ID:21024473