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Title: Impurity transport during neutral beam injection in the ISX-B tokamak

Technical Report ·
DOI:https://doi.org/10.2172/6821779· OSTI ID:6821779

In ohmically heated ISX-B discharges, both the intrinsic iron impurity ions and small amounts of argon introduced as a test gas accumulate at the center of the plasma. But during certain beam-heated discharges, it appears that this accumulation does not take place. These results may reflect the conclusion of Stacey and Sigmar that momentum transferred from the beams to the plasma can inhibit inward impurity transport.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
6821779
Report Number(s):
ORNL-TM-7472; TRN: 80-018417
Country of Publication:
United States
Language:
English