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Higher Fusion Power Gain with Current and Pressure Profile Control in Strongly Shaped DIII-D Tokamak Plasmas.
Authors
ME Austin
DR Baker
+50 more
KH Burrell
TA Casper
JC DeBoo
EJ Doyle
R Durst
JR Ferron
CB Forest
P Gohil
CM Greenfield
RJ Groebner
WW Heidbrink
R Hong
WA Houlberg
AW Howald
C Hsieh
AW Hyatt
GL Jackson
J Kim
La Haye RJ
LL Lao
CJ Lasnier
EA Lazarus
AW Leonard
J Lohr
R Maingi
RL Miller
M Murakami
GA Navratil
TH Osborne
LJ Perkins
CC Petty
CL Rettig
TL Rhodes
BW Rice
SA Sabbagh
DP Schissel
JT Scoville
RT Snider
St John HE
GM Staebler
BW Stallard
RD Stambaugh
RE Stockdale
EJ Strait
PL Taylor
DM Thomas
AD Turnbull
MR Wade
D Whyte
R Wood
Publication date
1 September 1996
Publisher
eScholarship, University of California
Abstract
Fusion power has been increased by a factor of 3 in DIII-D by tailoring the pressure profile to avoid the kink instability in H-mode plasmas. The resulting plasmas are found to have neoclassical ion confinement. This reduction in transport losses in beam-heated plasmas with negative central shear is correlated with a dramatic reduction in density fluctuations. Improved magnetohydrodynamic stability is achieved by controlling the plasma pressure profile width. In deuterium plasmas the highest gain Q (the ratio of fusion power to input power), was 0.0015, corresponding to an equivalent Q of 0.32 in a deuterium-tritium plasma. © 1996 The American Physical Society
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Last time updated on 25/12/2021