Bibliographic Citation
| Document | For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field. For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability. |
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| DOI | http://dx.doi.org/10.1063/1.873325 |
| Title | Fluctuation level bursts in a model of internal transport barrier formation |
| Creator/Author | Lopez-Bruna, D. ; Newman, D.E. ; Carreras, B.A. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-8071 (United States)] ; Diamond, P.H. [University of California at San Diego, La Jolla, California 92093-0319 (United States)] |
| Publication Date | 1999 Mar 01 |
| OSTI Identifier | OSTI ID: 321495 |
| Other Number(s) | Journal ID: PHPAEN; ISSN 1070-664X; TRN: TRN: 9905M0102 |
| Resource Type | Journal Article |
| Resource Relation | Journal Name: Physics of Plasmas; Journal Volume: 6; Journal Issue: 3; Other Information: PBD: Mar 1999 |
| Subject | 70 PLASMA PHYSICS AND FUSION; PLASMA WAVES; FLUCTUATIONS; PLASMA CONFINEMENT; TURBULENCE; CHARGED-PARTICLE TRANSPORT; OSCILLATIONS |
| Description/Abstract | A model of internal transport barriers (ITB) is developed that, in addition to the typical features of ITB models (the phase transition character with a power threshold, barrier front propagation, etc.), exhibits an oscillatory/bursty behavior close to the transition. This behavior comes from the competition between the driving and suppression mechanisms for the turbulence. The onset of the oscillations has a power threshold, P{sub osc}, below the power threshold for the transition to the enhanced confinement regime, P{sub th}. In the calculations, P{sub osc}{approximately}0.5P{sub th}. This suggests that the oscillations avoid an early transition at P{sub th}=P{sub osc}, so any mechanism that eliminates the oscillations may lower the transition power. {copyright} {ital 1999 American Institute of Physics.} |
| Country of Publication | United States |
| Language | English |
| Format | Medium: X; Size: pp. 854-862 |
| System Entry Date | 2008 Feb 04 |
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