DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2013 EXPERIMENTAL CAMPAIGN Review | Direct submission with log-in | Request submission without log-in
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Title	141: Studies of RE final loss
Name:	Eric Hollmann ehollmann@ucsd.edu	Affiliation:	University of California, San Diego
Research Area:	Disruption Mitigation	Presentation time:	Not requested
Co-Author(s):	A. Loarte, R. Martin-Solis, N. Commaux, C. Lasnier, R.Moyer, D. Rudakov	ITPA Joint Experiment :	No
Description:	Try to vary characteristics of RE final loss to understand Wmag - Wkin conversion, as well as heat load footprint.	ITER IO Urgent Research Task :	Yes
Experimental Approach/Plan:	Create RE plateau with small Ar pellet injection. Move RE beam into upper, lower, or inner walls at varying speeds to change final loss speed. Also, try to image footprint of final loss on main chamber with IR camera.
Background:	Conversion of magnetic to kinetic energy in RE final loss is predicted to depend dominantly on the loss time of the RE beam to the wall. By varying the drift velocity of RE beams into the wall, it can be seen if this conversion is affected. Also, the footprint size of RE final loss heat loads is unknown, so it will be attempted to try to image this with the IR camera.
Resource Requirements:	1 run day. Small Ar pellet injector.
Diagnostic Requirements:	BGO scintillator array. BGO energy counter. Main chamber and divertor IR cameras. Visible camera
Analysis Requirements:
Other Requirements: