NSTX SAS - FEC ‘04 S. A. Sabbagh 1 , A.C. Sontag 1 , R. E. Bell 2 , J. Bialek 1 , D.A. Gates 2 ,A. H. Glasser 3 , B.P. LeBlanc 2 , J.E. Menard 2 , W. Zhu 1 , M.G. Bell 2 , T.M. Biewer 2 , A. Bondeson 4 , C.E. Bush 5 , J.D. Callen 6 , M.S. Chu 7 , C. Hegna 6 , S. M. Kaye 2 , L. L. Lao 7 , Y. Liu 4 , R. Maingi 5 , D. Mueller 2 , K.C. Shaing 6 , D. Stutman 8 , K. Tritz 8 , C. Zhang 9 Wall Stabilized Operation in High Beta NSTX Plasmas Supported by Columbia U Comp-X General Atomics INEL Johns Hopkins U LANL LLNL Lodestar MIT Nova Photonics NYU ORNL PPPL PSI SNL UC Davis UC Irvine UCLA UCSD U Maryland U New Mexico U Rochester U Washington U Wisconsin Culham Sci Ctr Hiroshima U HIST Kyushu Tokai U Niigata U Tsukuba U U Tokyo JAERI Ioffe Inst TRINITI KBSI KAIST ENEA, Frascati CEA, Cadarache IPP, Jülich IPP, Garching U Quebec 20 th IAEA Fusion Energy Conference 1-6 November 2004 Vilamoura, Portugal 1 Department of Applied Physics, Columbia University, New York, NY, USA 2 Plasma Physics Laboratory, Princeton University, Princeton, NJ, USA 3 Los Alamos National Laboratory, Los Alamos, NM, USA 4 Institute for Electromagnetic Field Theory, Chalmers U., Goteborg, Sweden 5 Oak Ridge National Laboratory, Oak Ridge, TN, USA 6 University of Wisconsin, Madison, WI, USA 7 General Atomics, San Diego, CA, USA 8 Johns Hopkins University, Baltimore, MD, USA 9 Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, China
11
Embed
Wall Stabilized Operation in High Beta NSTX Plasmas
Supported by. Wall Stabilized Operation in High Beta NSTX Plasmas. Columbia U Comp-X General Atomics INEL Johns Hopkins U LANL LLNL Lodestar MIT Nova Photonics NYU ORNL PPPL PSI SNL UC Davis UC Irvine UCLA UCSD U Maryland U New Mexico U Rochester U Washington U Wisconsin - PowerPoint PPT Presentation
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
NSTX SAS - FEC ‘04
S. A. Sabbagh1, A.C. Sontag1, R. E. Bell2, J. Bialek1, D.A. Gates2,A. H. Glasser3, B.P. LeBlanc2, J.E. Menard2, W. Zhu1, M.G. Bell2, T.M. Biewer2, A. Bondeson4, C.E. Bush5, J.D. Callen6, M.S. Chu7, C. Hegna6, S. M. Kaye2, L. L. Lao7, Y. Liu4, R. Maingi5, D. Mueller2, K.C. Shaing6, D. Stutman8, K. Tritz8, C. Zhang9
Wall Stabilized Operation in High Beta NSTX Plasmas
Supported by
Columbia UComp-X
General AtomicsINEL
Johns Hopkins ULANLLLNL
LodestarMIT
Nova PhotonicsNYU
ORNLPPPL
PSISNL
UC DavisUC Irvine
UCLAUCSD
U MarylandU New Mexico
U RochesterU Washington
U WisconsinCulham Sci Ctr
Hiroshima UHIST
Kyushu Tokai UNiigata U
Tsukuba UU Tokyo
JAERIIoffe Inst
TRINITIKBSI
KAISTENEA, Frascati
CEA, CadaracheIPP, Jülich
IPP, GarchingU Quebec
20th IAEA Fusion Energy Conference1-6 November 2004Vilamoura, Portugal
1Department of Applied Physics, Columbia University, New York, NY, USA2Plasma Physics Laboratory, Princeton University, Princeton, NJ, USA
3Los Alamos National Laboratory, Los Alamos, NM, USA4Institute for Electromagnetic Field Theory, Chalmers U., Goteborg, Sweden5Oak Ridge National Laboratory, Oak Ridge, TN, USA6University of Wisconsin, Madison, WI, USA7General Atomics, San Diego, CA, USA8Johns Hopkins University, Baltimore, MD, USA9Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, China
NSTX SAS - FEC ‘04
Wall stabilization physics understanding is key to sustained plasma operation at maximum
• High t = 39%, N = 6.8 reached
N
li
N/li = 12 68
4
10
wall stabilized
• Global MHD modes can lead to rotation damping, collapse
• Physics of sustained stabilization is applicable to ITER
• Operation with N/Nno-wall > 1.3 at
highest N for pulse >> wall
-25-20-15-10
-505
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
N
01234567
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
DCON
W
0
10
20
0.6 0.70.50.40.30.20.10.0t(s)
n=1 (no-wall)n=1 (wall)
112402
wall stabilized
0
1
2
3
4
5
6
7
8
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
EFIT
core plasma rotation(x10 kHz)
NSTX SAS - FEC ‘04
Theory provides framework for wall stabilization study