American Nuclear Society

Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 29 / Number 2

A Re-Examination of Spheromak Experiments and Opportunities

E. Bickford Hooper, James H. Hammer, Cris W. Barnes, Juan C. Fernández, Fred J. Wysocki

Fusion Science and Technology

Volume 29 / Number 2 / March 1996 / Pages 191-205


Member Price:$27.00
Member Savings:$3.00

The results of spheromak experiments are reexamined in light of the hypothesis that the core energy confinement is considerably better than the global confinement and that it extrapolates favorably with magnetic Reynolds number S. The data in decaying spheromaks are found to be consistent with the hypothesis and with magnetic fluctuations scaling as S−1/2 and determining the electron thermal conductivity. No conclusion is drawn from the data for sustained spheromaks, indicating the importance of a new experiment to determine core energy confinement while helicity is injected. The characteristics of such an experiment are discussed, including the importance of using modern vacuum and wall-conditioning techniques and of minimizing magnetic field errors.

Questions or comments about the site? Contact the ANS Webmaster.