Session VP1: Poster Session VIII: Spher. Torus and Exploratory Conf. Concepts; RF Heating and Diag; Magnetic Reconnection; Plasma Sim: Kinetic Codes; Plasma Tech.
2:00 PM–2:00 PM, Thursday, November 2, 2006
Philadelphia Marriott Downtown Room: Franklin Hall AB, 2:00pm-5:00pm
Abstract ID: BAPS.2006.DPP.VP1.166
Abstract: VP1.00166 : Spectroscopic diagnostics on the VX-50
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Abstract 
Authors:
Ella M. Sciamma
Roger D. Bengtson
(University of Texas at Austin)
W. Jacob Chancery
V.T. Jacobson
(Ad Astra Rocket Company, Houston)
We have used hydrogen spectra to estimate electron temperature on VX-50, a 20 kW helicon plasma with a 20 KW ICRF acceleration section, using absolutely calibrated spectroscopic measurements of the Balmer series. The time evolution of the hydrogen spectra shows a transition from an ionizing plasma to a recombining plasma and back during a shot. We used a collisional radiative mode to estimate electron temperatures along with electron density measurements from an interferometer.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2006.DPP.VP1.166