skip to main content

DOE PAGESDOE PAGES

Title: Location of the first plasma response to resonant magnetic perturbations in DIII-D H-mode plasmas

The resonant location of the first plasma response to periodic toroidal phase flips of a Resonant Magnetic Perturbation (RMP) field is experimentally identified in the DIII-D tokamak using phase minima of the modulated plasma density and toroidal rotation relative to the RMP field. Furthermore, the plasma response coincides with the q=3 rational surface and electron fluid velocity null, which is consistent with simulations of the plasma response to the RMP field from a resistive Magnetohydrodynamics modeling. We also observe an asymmetric propagation of the particle and the momentum from the resonant location of the plasma response to the RMP into to core and into the plasma edge.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Univ. of California, San Diego, CA (United States). Center for Energy Research; Southwestern Inst. of Physics, Chengdu (People's Republic of China)
  2. General Atomics, San Diego, CA (United States)
  3. Univ. of California, San Diego, CA (United States). Center for Energy Research
  4. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Publication Date:
Grant/Contract Number:
FG02-08ER54999; FC02-04ER54698; FG03-97ER54415; FG02-89ER53296; FG02-07ER54917; AC02-09CH11466; SC0001961; 11175056; 11575055; 2013GB107000
Type:
Accepted Manuscript
Journal Name:
Nuclear Fusion
Additional Journal Information:
Journal Volume: 56; Journal Issue: 6; Related Information: W.W. Xiao, T.E. Evans, G.R. Tynan, D. Eldon, "Location of the First Plasma Response to Resonant Magnetic Perturbations in DIII-D H-Mode Plasmas", Nuclear Fusion 56 064001, April 2016; Journal ID: ISSN 0029-5515
Publisher:
IOP Science
Research Org:
General Atomics, San Diego, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; resonant magnetic perturbation (RMP); resonant location; rational surface
OSTI Identifier:
1371713