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Lower Hybrid Current Drive at High Density in Alcator C-Mod
Experimental observations of lower hybrid current drive (LHCD) at high density on the Alcator C-Mod tokamak are presented in this paper. Bremsstrahlung emission from relativistic fast electrons inExpand
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Overview of physics studies on ASDEX upgrade
The ASDEX Upgrade (AUG) programme, jointly run with the EUROfusion MST1 task force, continues to significantly enhance the physics base of ITER and DEMO. Here, the full tungsten wall is a key assetExpand
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High-field side scrape-off layer investigation: Plasma profiles and impurity screening behavior in near-double-null configurations
New experiments on Alcator C-Mod reveal that the favorable impurity screening characteristics of the high-field side (HFS) scrape-off layer (SOL), previously reported for single null geometries, isExpand
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Improved confinement in high-density H-modes via modification of the plasma boundary with lower hybrid wavesa)
Injecting Lower Hybrid Range of Frequency (LHRF) waves into Alcator C-Mod's high-density H-mode plasmas has led to enhanced global energy confinement by increasing pedestal temperature and pressureExpand
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Effects of LHRF on toroidal rotation in Alcator C-Mod plasmas
Application of lower hybrid range of frequencies (LHRF) waves can induce both co- and counter-current directed changes in toroidal rotation in Alcator C-Mod plasmas, depending on the target plasmaExpand
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High field side launch of RF waves: A new approach to reactor actuators
Launching radio frequency (RF) waves from the high field side (HFS) of a tokamak offers significant advantages over low field side (LFS) launch with respect to both wave physics and plasma materialExpand
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20 years of research on the Alcator C-Mod tokamak
The object of this review is to summarize the achievements of research on the Alcator C-Mod tokamak [Hutchinson et al., Phys. Plasmas 1, 1511 (1994) and Marmar, Fusion Sci. Technol. 51, 261 (2007)]Expand
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Measurements of ion cyclotron parametric decay of lower hybrid waves at the high-field side of Alcator C-Mod
Ion cyclotron parametric decay instability (PDI) of lower hybrid (LH) waves is surveyed using edge Langmuir probes on the Alcator C-Mod tokamak. The measurement is carried out simultaneously at theExpand
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Overview of experimental results and code validation activities at Alcator C-Mod
Recent research on the Alcator C-Mod tokamak has focused on a range of scientific issues with particular emphasis on ITER needs and on detailed comparisons between experimental measurements andExpand
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Design, and initial experiment results of a novel LH launcher on Alcator C-Mod
The design, construction and initial results of a new lower hybrid current drive (LHCD) launcher on Alcator C-Mod (Hutchinson et al 1994 Phys. Plasmas 1 1511) are presented. The new LHCD launcherExpand
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