TPX diagnostics for tokamak operation, plasma control and machine protection Page: 4 of 8
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TPX Diagnostics for Tokamak Operation, Plasma Control and
P. H. Edmonds, S. S. Medleya), K. M. Younga, G. H. Neilsonb),
R. J. Goldstona), M. G. Bella), D. W. Johnsona), F. M. Levintonc),
G. Rendaa), G. Gettelfingera), N. L. Bretza), S. J. Zwebena).
Fusion Research Center, University of Texas at Austin, TX 78712
a)Princeton Plasma Physics Laboratory, PO Box 451, Princeton, NJ 08543 USA
b)Oak Ridge National Laboratory, Oak Ridge, TN 37831
c)Fusion Physics & Technology, Inc., Torrance, CA 90503
The Tokamak Physics Experiment (TPX) is planned to be an advanced
performance, high beta, steady state, high heat flux, double null divertor tokamak
[1, 2, 3, 4. Machine parameters are: Ro=2.25 m, ap=0.5 m; A=4.5; x~2; 8~0.8; BT=4 T
and Ip=2 MA. Operation in both hydrogen and deuterium is planned. The design is
Figure 1. Eleva
including IR TV loc
required to incorporate end-of-life tritium
capability. The experiment includes 8 MW of
neutral beam power, 6 MW of ion cyclotron
and 3 MW of lower hybrid rf power for
IR/TV auxiliary heating and current drive.
Experimental scenarios include non-inductive
current drive with an initial 1000 sec long
TANGENTIAL pulse mode and an upgrade to steady state
VIEW (105 sec), divertor heat loads of up to
PASSIVE 7.5 MW/m3 and maximum neutron rates up
PLA TE to 7.5x1016/sec. First plasma is scheduled for
Diagnostics are required for real time
ESSEL plasma control, physics measurements and
machine protection. Fundamental to initial
operation are measurements of plasma equi-
librium and position, basic plasma properties,
tion View of TPX Core current density and pressure profiles, surface
nations and view of plasma
stabilizer plates heat loads on plasma facing components and
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Edmonds, P.H.; Medley, S.S. & Young, K.M. TPX diagnostics for tokamak operation, plasma control and machine protection, report, August 1, 1995; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc623126/m1/4/: accessed August 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.