Title

Long Lived Taylor states In SSX For Magneto-Inertial Fusion

Document Type

Presentation

Publication Date

11-9-2018

Published In

Bulletin Of The American Physical Society

Abstract

Our recent focus has been on increasing the magnetic lifetime of compressed Taylor state plasmas at SSX [1] primarily by focussing attention on the electron temperature. We have installed a new tungsten coated copper flux conserver to reduce sputtering and provide a clean plasma facing surface. We estimate Te with a vacuum ultraviolet spectrometer measurement of the ratio of the CIII 97.7 nm to CIV 155 nm line intensities [2]. A preliminary measurement has Te∼10 eV. We bake and glow discharge clean the vacuum surface to remove adsorbed contaminants. Our current measured parameters include velocity (40 km/s), density (0.5×1016 cm−3), proton temperature (20 eV), and magnetic field (0.4 T) of relaxed helical Taylor states in the new flux conserver.

Conference

60th Annual Meeting Of The APS Division Of Plasma Physics

Conference Dates

November 5-9, 2018

Conference Location

Portland, OR

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