@inproceedings{35bc5fefca7243b0be41f4f8c9c850ea,
title = "Observation of Co and counter rotation produced by lower hybrid waves in Alcator C-Mod",
abstract = "Lower hybrid waves launched uni-directionally into tokamak plasmas impart momentum to the electrons. This momentum can be transferred to the ions, leading to substantial counter current rotation. Observations of LH-induced counter rotation have been previously reported [1], and the initial rate of increase has been found to be consistent with the calculated rate of wave momentum injection [2]. However, in recent experiments in Alcator C-Mod it has been found that application of LH waves to relatively low current (I p∼0.4-0.6MA) plasmas can result in a co-current change of rotation, which implies a different mechanism than that described above. This appears to be linked to the so-called intrinsic rotation commonly observed in Alcator C-Mod and other tokamaks [3]. In addition to the change in direction at low current, some dependence on the magnetic configuration (USL vs. LSN) has been observed.",
keywords = "Lower Hybrid, RF Torque",
author = "Parker, \{R. R.\} and Y. Podpaly and J. Lee and Reinke, \{M. L.\} and Rice, \{J. E.\} and Bonoli, \{P. T.\} and O. Meneghini and S. Shiraiwa and Wallace, \{G. M.\} and Wilson, \{J. R.\}",
year = "2011",
doi = "10.1063/1.3665014",
language = "English (US)",
isbn = "9780735409781",
series = "AIP Conference Proceedings",
pages = "455--458",
booktitle = "Radio Frequency Power in Plasmas - Proceedings of the 19th Topical Conference",
note = "19th Topical Conference on Radio Frequency Power in Plasmas ; Conference date: 01-06-2011 Through 03-07-2011",
}