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Heliac parameter study

Technical Report ·
DOI:https://doi.org/10.2172/5734313· OSTI ID:5734313

Helical axis stellarators (heliacs) with zero net current are found to possess very good stability properties. Helically symmetric or straight heliacs with bean-shaped cross sections have a first region of stability that reaches to (..beta..) of 30% or more. Those with circular cross sections have second region of stability to Mercier modes. In addition we report on the stability properties of these plasma configurations as functions of pressure profile, helical aspect ratio, and helical period length.

Research Organization:
Princeton Univ., NJ (USA). Plasma Physics Lab.
DOE Contract Number:
AC02-76CH03073
OSTI ID:
5734313
Report Number(s):
PPPL-2036; ON: DE84000906
Country of Publication:
United States
Language:
English