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dc.contributor.authorRice, John E.en_US
dc.contributor.authorCao, N.M.en_US
dc.contributor.authorDiamond, P.H.en_US
dc.contributor.authorGreenwald, M.J.en_US
dc.contributor.authorHubbard, Amanda E.en_US
dc.contributor.authorMarmar, E.S.en_US
dc.contributor.authorReinke, M.L.en_US
dc.contributor.authorRodriguez-Fernandez, P.en_US
dc.date.accessioned2025-03-21T20:23:23Z
dc.date.available2025-03-21T20:23:23Z
dc.date.issued2023-05
dc.identifier23ja036
dc.identifier.urihttps://hdl.handle.net/1721.1/158738
dc.descriptionSubmitted for publication in Physics of Plasmas
dc.description.abstractStudies of core toroidal rotation reversal phenomenology in C-Mod deuterium L-mode plasmas have been expanded to include details of the dependences on plasma current and toroidal magnetic field. Rotation reversal occurs at a critical density and universal scaling indicates that the product of n_crit q_95 R ~ B_T/2, with n_crit in 10^20/m^3, R in m and B_T in T. Measurements in H and He plasmas exhibit similar behavior, including a connexion with the LOC/SOC transition and the cut-off for non-diffusive heat transport. Electron density and ICRF power modulation experiments suggest that the collisionality nu_* is a unifying parameter. Strong impurity puffing causes the critical density to increase, indicating that the situation is more complicated than only collisionality, perhaps involving the details of the effects of dilution on ITG mode stability.
dc.publisherAIPen_US
dc.relation.isversionofdoi.org/10.1063/5.0159632
dc.sourcePlasma Science and Fusion Centeren_US
dc.titleFurther Rotation Reversal Studies in C-Mod L-mode Plasmasen_US
dc.typeArticleen_US
dc.contributor.departmentMassachusetts Institute of Technology. Plasma Science and Fusion Center
dc.relation.journalPhysics of Plasmas


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