Bulletin of the American Physical Society
60th Annual Meeting of the APS Division of Plasma Physics
Volume 63, Number 11
Monday–Friday, November 5–9, 2018; Portland, Oregon
Session UP11: Poster Session VIII: MST; DIII-D Tokamak; SPARC, C-Mod, and High Field Tokamaks; HBT-EP; Transport and LPI in ICF Plasmas, Hydrodynamic Instability; HEDP Posters; Space and Astrophysical Plasmas (2:00pm-5:00pm)
Thursday, November 8, 2018
OCC Room: Exhibit Hall A1&A
Abstract ID: BAPS.2018.DPP.UP11.62
Abstract: UP11.00062 : Predicting the Toroidal Rotation Profile for ITER*
Brian A Grierson
Shaun R Haskey
John S Degrassie
Gary M Staebler
Experiments on DIII-D have increased confidence in a prediction of moderate intrinsic rotation in ITER by investigating the effect of fast-ions and edge neutrals in rotation studies. In a large tokamak like ITER, intrinsic sources of rotation are important because evidence suggests they will be comparable to the neutral beam torque. Measurements of the ρ* dependence of intrinsic rotation in Electron Cyclotron Heated H-modes are consistent with previous measurements of the ρ* scaling of intrinsic torque and momentum confinement in beam heated plasmas with significant fast-ion fractions, showing that fast-ions did not corrupt those results. Also, the small differences in intrinsic rotation of closed and open divertor configurations show that momentum transport due to neutrals in the pedestal is not a significant hidden variable. This result is supported by the similarity of intrinsic rotation before and after the onset of detachment.
 C. Chrystal et al., Phys. Plasmas 24, 042501 (2017).
*This work was supported in part by the US Department of Energy under DE-FC02-04ER54698 and DE-AC02-09CH11466, and carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 under Grant Agreement No. 633053.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DPP.UP11.62
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