1. TFTR Initial operations
- Author
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D. Mikkelson, H. W. Hendel, H. F. Dylla, R.J. Hawryluk, D. McCune, P. C. Efthimion, Dale Meade, Robert James Goldston, Joseph L. Cecchi, E. Nieschmidt, J. Coonrod, M. Bell, D. Mueller, K. McGuire, R. B. Krawchuk, M. McCarthy, K.W. Hill, R. Little, G. D. Tait, J. Isaacson, Robert Kaita, L. C. Johnson, S. S. Medley, G. Taylor, L. Samuelson, D. J. Grove, N. L. Bretz, M. Ulrickson, J. Schivell, W. Blanchard, A. L. Roauemore, D.K. Owens, S. L. Davis, F. Tenney, Kenneth M. Young, J. A. Schmidt, S. Sesnic, R. J. Fonck, J. Sinnis, A. T. Ramsey, J. D. Strachan, and N. R. Sauthoff
- Subjects
Physics ,Hydrogen ,Feedback control ,chemistry.chemical_element ,Plasma ,Condensed Matter Physics ,Nuclear physics ,Nuclear Energy and Engineering ,chemistry ,Deuterium ,Impurity ,Atomic physics ,Tokamak Fusion Test Reactor ,Scaling ,Current decay - Abstract
TSTR (Tokamak Fusion Test Reactor) has operated since December 1982 with ohmically heated plasmas. Routine operation with feedback control of plasma current, position and density has been obtained for plasmas with Ip800 kA, a = 68 cm, R = 250 cm, and Bt=27 kG. A maximum plasma current of 1 MA was achieved with q2.5. Energy confinement times of ~150 msec were measured for hydrogen and deuterium plasmas with e = 2 x 1013 cm-3, Te(0) 21.5 keV, Ti(0) = 1.5 keV and Zeff1 3. The preliminary results suqgest a size-cubed scaling from PLT, and are consistent with Alcator C scaling where T ~ nR2a. Initial measurements of plasma disruption characteristics indicate current decay rates of ~ 800 kA in 8 ms which is within the TFTR design requirement of 3 MA in 3 ms.
- Published
- 1984
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