Effects of Magnetic Shear on Toroidal Rotation in Tokamak Plasmas with Lower Hybrid Current Drive
Application of lower hybrid (LH) current drive in tokamak plasmas can induce both co- and countercurrent directed changes in toroidal rotation, depending on the core q profile. For discharges with q[subscript 0] < 1, rotation increments in the countercurrent direction are observed. If the LH-driv...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/84976 https://orcid.org/0000-0001-8319-5971 https://orcid.org/0000-0002-9604-204X https://orcid.org/0000-0003-4432-5504 https://orcid.org/0000-0002-3757-7730 https://orcid.org/0000-0002-4438-729X https://orcid.org/0000-0002-5283-0546 https://orcid.org/0000-0002-1620-9680 |
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| author | Scott, S. D. Chouli, B. Fenzi-Bonizec, C. Nave, M. F. F. Diamond, P. H. Delgado-Aparicio, Luis Eriksson, L.-G. Giroud, C. Kirov, K. Mailloux, J. Rice, John E. Reinke, Matthew Logan Mumgaard, Robert Thomas Shiraiwa, Shunichi Wallace, Gregory Marriner Gao, Chi Granetz, Robert S. Bonoli, Paul T. Greenwald, Martin J. Irby, James Henderson Marmar, Earl S. Hughes Jr, Jerry Parker, R. Hubbard, Amanda E Hutchinson, Ian Horner Wolfe, Stephen M Podpaly, Yuri |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Scott, S. D. Chouli, B. Fenzi-Bonizec, C. Nave, M. F. F. Diamond, P. H. Delgado-Aparicio, Luis Eriksson, L.-G. Giroud, C. Kirov, K. Mailloux, J. Rice, John E. Reinke, Matthew Logan Mumgaard, Robert Thomas Shiraiwa, Shunichi Wallace, Gregory Marriner Gao, Chi Granetz, Robert S. Bonoli, Paul T. Greenwald, Martin J. Irby, James Henderson Marmar, Earl S. Hughes Jr, Jerry Parker, R. Hubbard, Amanda E Hutchinson, Ian Horner Wolfe, Stephen M Podpaly, Yuri |
| author_sort | Scott, S. D. |
| collection | MIT |
| description | Application of lower hybrid (LH) current drive in tokamak plasmas can induce both co- and countercurrent directed changes in toroidal rotation, depending on the core q profile. For discharges with q[subscript 0] < 1, rotation increments in the countercurrent direction are observed. If the LH-driven current is sufficient to suppress sawteeth and increase q[subscript 0] above unity, the core toroidal rotation change is in the cocurrent direction. This change in sign of the rotation increment is consistent with a change in sign of the residual stress (the divergence of which constitutes an intrinsic torque that drives the flow) through its dependence on magnetic shear. |
| first_indexed | 2024-09-23T15:19:54Z |
| format | Article |
| id | mit-1721.1/84976 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:19:54Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/849762023-02-26T02:55:24Z Effects of Magnetic Shear on Toroidal Rotation in Tokamak Plasmas with Lower Hybrid Current Drive Scott, S. D. Chouli, B. Fenzi-Bonizec, C. Nave, M. F. F. Diamond, P. H. Delgado-Aparicio, Luis Eriksson, L.-G. Giroud, C. Kirov, K. Mailloux, J. Rice, John E. Reinke, Matthew Logan Mumgaard, Robert Thomas Shiraiwa, Shunichi Wallace, Gregory Marriner Gao, Chi Granetz, Robert S. Bonoli, Paul T. Greenwald, Martin J. Irby, James Henderson Marmar, Earl S. Hughes Jr, Jerry Parker, R. Hubbard, Amanda E Hutchinson, Ian Horner Wolfe, Stephen M Podpaly, Yuri Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Plasma Science and Fusion Center Rice, John E. Podpaly, Y. A. Reinke, Matthew Logan Mumgaard, Robert Thomas Shiraiwa, Shunichi Wallace, Gregory Marriner Gao, Chi Granetz, Robert S. Hughes, Jerry W. Parker, Ronald R. Bonoli, Paul T. Greenwald, Martin J. Hubbard, Amanda E. Hutchinson, Ian H. Irby, James Henderson Marmar, Earl S. Wolfe, Stephen M. Application of lower hybrid (LH) current drive in tokamak plasmas can induce both co- and countercurrent directed changes in toroidal rotation, depending on the core q profile. For discharges with q[subscript 0] < 1, rotation increments in the countercurrent direction are observed. If the LH-driven current is sufficient to suppress sawteeth and increase q[subscript 0] above unity, the core toroidal rotation change is in the cocurrent direction. This change in sign of the rotation increment is consistent with a change in sign of the residual stress (the divergence of which constitutes an intrinsic torque that drives the flow) through its dependence on magnetic shear. United States. Dept. of Energy (Contract DE-FC02-99ER54512) United States. Dept. of Energy (Fusion Research Postdoctoral Research Program) 2014-02-18T16:43:49Z 2014-02-18T16:43:49Z 2013-09 2013-05 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/84976 Rice, J. E., Y. A. Podpaly, M. L. Reinke, R. Mumgaard, S. D. Scott, S. Shiraiwa, G. M. Wallace, et al. “Effects of Magnetic Shear on Toroidal Rotation in Tokamak Plasmas with Lower Hybrid Current Drive.” Physical Review Letters 111, no. 12 (September 2013). © 2013 American Physical Society https://orcid.org/0000-0001-8319-5971 https://orcid.org/0000-0002-9604-204X https://orcid.org/0000-0003-4432-5504 https://orcid.org/0000-0002-3757-7730 https://orcid.org/0000-0002-4438-729X https://orcid.org/0000-0002-5283-0546 https://orcid.org/0000-0002-1620-9680 en_US http://dx.doi.org/10.1103/PhysRevLett.111.125003 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society American Physical Society |
| spellingShingle | Scott, S. D. Chouli, B. Fenzi-Bonizec, C. Nave, M. F. F. Diamond, P. H. Delgado-Aparicio, Luis Eriksson, L.-G. Giroud, C. Kirov, K. Mailloux, J. Rice, John E. Reinke, Matthew Logan Mumgaard, Robert Thomas Shiraiwa, Shunichi Wallace, Gregory Marriner Gao, Chi Granetz, Robert S. Bonoli, Paul T. Greenwald, Martin J. Irby, James Henderson Marmar, Earl S. Hughes Jr, Jerry Parker, R. Hubbard, Amanda E Hutchinson, Ian Horner Wolfe, Stephen M Podpaly, Yuri Effects of Magnetic Shear on Toroidal Rotation in Tokamak Plasmas with Lower Hybrid Current Drive |
| title | Effects of Magnetic Shear on Toroidal Rotation in Tokamak Plasmas with Lower Hybrid Current Drive |
| title_full | Effects of Magnetic Shear on Toroidal Rotation in Tokamak Plasmas with Lower Hybrid Current Drive |
| title_fullStr | Effects of Magnetic Shear on Toroidal Rotation in Tokamak Plasmas with Lower Hybrid Current Drive |
| title_full_unstemmed | Effects of Magnetic Shear on Toroidal Rotation in Tokamak Plasmas with Lower Hybrid Current Drive |
| title_short | Effects of Magnetic Shear on Toroidal Rotation in Tokamak Plasmas with Lower Hybrid Current Drive |
| title_sort | effects of magnetic shear on toroidal rotation in tokamak plasmas with lower hybrid current drive |
| url | http://hdl.handle.net/1721.1/84976 https://orcid.org/0000-0001-8319-5971 https://orcid.org/0000-0002-9604-204X https://orcid.org/0000-0003-4432-5504 https://orcid.org/0000-0002-3757-7730 https://orcid.org/0000-0002-4438-729X https://orcid.org/0000-0002-5283-0546 https://orcid.org/0000-0002-1620-9680 |
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