Physics performance of the Joint European Torus
- 1 December 1984
- journal article
- Published by IOP Publishing in Plasma Physics and Controlled Fusion
- Vol. 26 (12A), 1355-1365
- https://doi.org/10.1088/0741-3335/26/12a/002
Abstract
JET has been operating for one year. The diagnostic capability has been progressively increased from the barely adequate initial level to the point where physics data on the internal plasma processes is available. The plasma current has been taken up to just over 3 MA with flat-top times of several seconds. Central electron temperatures are in the range 1-3 keV, mean electron densities (n) from 0.1-2.5*1019m-3 and the derived global energy confinement tau epsilon reaches 0.35s+or-30%. The radiation loss is substantial, ranging from 60-100% of the input power. The contamination of the plasma is high, giving typical values of Zeff approximately 5, limiting the maximum density, giving higher temperatures and lower (n tau epsilon ) products than expected. Experiments and machine changes are in hand to overcome this problem.Keywords
This publication has 2 references indexed in Scilit:
- Status and programme of JETPlasma Physics and Controlled Fusion, 1984
- The JET Scientific Programme and Perspectives in the European Fusion ProgrammePhysica Scripta, 1982