Three-dimensional drift kinetic response of high-β plasmas in the DIII-D tokamak

Wang, Zhirui R.; Lanctot, Matthew J.; Liu, Y. Q.; Park, Jong -Kyu; Menard, Jonathan E.

doi:10.1103/PhysRevLett.114.145005

Title: Three-dimensional drift kinetic response of high- $β$ plasmas in the DIII-D tokamak

Journal Article · Tue Apr 07 00:00:00 EDT 2015 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.114.145005· OSTI ID:1371727

Wang, Zhirui R. ^[1]; Lanctot, Matthew J. ^[2]; Liu, Y. Q. ^[3]; Park, Jong -Kyu ^[1]; Menard, Jonathan E. ^[1]

Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
General Atomics, San Diego, CA (United States)
Culham Centre for Fusion Energy, Abingdon (United Kingdom)

A quantitative interpretation of the experimentally measured high pressure plasma response to externally applied three-dimensional (3D) magnetic field perturbations, across the no-wall Troyon limit, is achieved. The key to success is the self-consistent inclusion of the drift kinetic resonance effects in numerical modeling using the MARS-K code. This resolves an outstanding issue of ideal magneto-hydrodynamic model, which signi cantly over-predicts the plasma induced field ampli fication near the no-wall limit, as compared to experiments. The self-consistent drift kinetic model leads to quantitative agreement not only for the measured 3D field amplitude and toroidal phase, but also for the measured internal 3D displacement of the plasma.

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Research Organization:: General Atomics, San Diego, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: FC02-04ER54698; AC02-09CH11466

OSTI ID:: 1371727

Alternate ID(s):: OSTI ID: 1179352

Journal Information:: Physical Review Letters, Vol. 114, Issue 14; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 52 works

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