Investigation of Electron Distribution Functions in the Plug Region of the GAMMA 10 Tandem Mirror
Fusion Science and Technology / Volume 51 / Number 2T / February 2007 / Pages 204-207
Technical Paper / Open Magnetic Systems for Plasma Confinement / dx.doi.org/10.13182/FST07-A1351
Articles are hosted by Taylor and Francis Online.
ANS Members, if you subscribe to Fusion Science and Technology, please log in before accessing the article.
Generalized scaling laws for the formation of plasma confining potentials are investigated to find the physics essentials common to representative tandem-mirror operational modes in GAMMA 10. These modes are characterized in terms of (i) a high-potential mode and (ii) a hot-ion mode. The potential-formation scalings in these modes are consolidated and generalized on the basis of the consistency with finding of the wider validity of Cohen's strong electron-cyclotron heating (ECH) theory covering over both modes. A plateau-shaped electron distribution function is observed when a plug electron-confining potential is formed in the hot ion mode of GAMMA 10, as predicted in terms of the strong ECH theory.
