PELLET ABLATION IN THE W VII-A STELLARATOR
Pellets of different sizes (0.6, 0.8 and 1.0 mm phi) are injected into stellarator plasmas with ohmic, ECR, and neutral injection heating. The direct particle deposition inside the plasma was incomplete for large pellets with total penetration and for ECRH plasmas generally. In NIH plasmas the total mass of the pellets was deposited and the density rise without increase of impurities resulted in energy contents of 4.8 kJ which exceeds the values for gas-fuelled discharges: Radiation fluctuations during pellet ablation are also observed in a stellarator for the first time.
Bibliographic Reference: WRITE TO MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, 8046 GARCHING BEI MUENCHEN (GERMANY), MENTIONING REPORT IPP 1/238, 1986
Record Number: 1989126056100 / Last updated on: 1989-03-01
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