Speaker
Dr
Daniel Sheftman
(Tri Alpha Energy)
Description
Experiments demonstrating sustainment of field-reversed configuration (FRC) plasma via neutral beam injection have been carried out on C-2U. Knowledge and control of the axial outflow of plasma particles and energy along open-magnetic-field lines are of crucial importance to successful confinement of FRC plasma, and in particular to FRC core temperature ramp-up. A diverse suite of diagnostics was utilized to perform measurements of plasma in the open field lines, including passive Doppler impurity spectroscopy, microwave interferometry, triple Langmuir probe measurements and radial impurity emission profile scanning. Results of these measurements will be presented. In addition, correlation between velocity profiles of the open-field-line plasma outflow to FRC particle and energy decay rates will be discussed.
Primary author
Dr
Daniel Sheftman
(Tri Alpha Energy)
Co-authors
Dr
Deepak Gupta
(Tri Alpha Energy)
Dr
Fabio Conti
(University of Pisa)
Prof.
Francesco Giammanco
(University of Pisa)
Dr
Matthew Thompson
(Tri Alpha Energy)
Mr
Paolo Marsili
(University of Pisa)
Dr
Thomas Roche
(Tri Alpha Energy)
