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/10.1063/1.872662 |
| Title | Dynamics and control of internal transport barriers in reversed shear discharges |
| Creator/Author | Newman, D.E. ; Carreras, B.A. ; Lopez-Bruna, D. [Oak Ridge National Laboratory, Oak Ridge, Tennessee37831-8071 (United States)] ; Diamond, P.H. ; Lebedev, V.B. [University of California at San Diego, La Jolla, California92093-0319 (United States)] |
| Publication Date | 1998 Apr 01 |
| OSTI Identifier | OSTI ID: 625837 |
| Other Number(s) | Journal ID: PHPAEN; ISSN 1070-664X; TRN: TRN: 9807M0133 |
| Resource Type | Journal Article |
| Resource Relation | Journal Name: Physics of Plasmas; Journal Volume: 5; Journal Issue: 4; Other Information: PBD: Apr 1998 |
| Subject | 70 PLASMA PHYSICS AND FUSION; CHARGED-PARTICLE TRANSPORT; TOKAMAK DEVICES; TURBULENCE; DYNAMICS; ELECTRIC DISCHARGES; FLUCTUATIONS; PLASMA CONFINEMENT |
| Description/Abstract | Transitions to an enhanced confinement regime in tokamak plasmas with negative central magnetic shear have been observed in a number of devices. A simple model incorporating the nonlinear coupling between the turbulent fluctuations and the sheared radial electric field is added to a transport model in order to investigate the dynamics of the transition to this enhanced confinement mode. In this model, by incorporating both the instability growth rate profiles and particle and/or power deposition profiles, a rich variety of transition dynamics is uncovered. Transition dynamics and their concomitant thresholds are examined within the context of these models. In the course of investigating these transitions, potential methods for triggering and controlling these enhanced confinement regimes have been discovered and are discussed. {copyright} {ital 1998 American Institute of Physics.} |
| Country of Publication | United States |
| Language | English |
| Format | Medium: X; Size: pp. 938-952 |
| System Entry Date | 2008 Feb 05 |
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