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(EXP2/02) Experimental Tests of Confinement Scale Invariance on JET, DIIID, ASDEX Upgrade and CMOD

  (This paper was rapporteured in lecture EX7/2)  

 
J. P. Christiansen , R. Budny ⁴, J. G. Cordey , J. C. Fuchs ¹, M. Greenwald ³, O. Gruber ¹, A. Hubbard ³, I. Hutchinson ³, G. Huysmans , P. Lomas , C. Lowry , T. C. Luce ², H. Meister ¹, S. de Peña Hempel ¹, C. C. Petty ², F. Ryter ¹, H. Salzmann ¹, B. Schunke , J. Schweinzer ¹, J. Stober ¹, W. Suttrop ¹, K. Thomsen , B. Tubbing , S. Wolfe ³, Alcator C-MOD Team ³, ASDEX Upgrade Team ¹, DIII-D Team ², JET Team 
 
JET Joint Undertaking, Abingdon, OX14 3EA, UK
¹ Max Planck Institut für Plasmaphysik, D-85740 Garching, Germany
² General Atomics, San Diego, CA 92186-5608, USA
³ MIT Plasma Science and Fusion Center, Cambridge, MA, USA
⁴ Princeton University, PPPL, P.O. Box, 451, Princeton, NJ08543, U.S.A.

Abstract
An international collaboration between JET , DIIID, AUG and CMOD has resulted in four sets of Tokamak discharges which are approximately identical as regards a set of dimensionless plasma variables. The data demonstrates some measure of scale invariance  of local and global confinement but a more accurate matching of scaled density, power etc. is required to make firmer conclusions.

     

Read the full paper in PDF format.