Abstract Details

Presentation:submitted:by:
icc_2006_renneke.pdf2006-03-08 14:22:50Richard Renneke

Global Energy Balance on a High Density Field-Reversed Configuration

Author: Richard Renneke
Submitted: 2005-12-21 11:22:21

Co-authors: T. Intrator, S. Hsu, G. A. Wurden, Shouyin Zhang

Contact Info:
Los Alamos National Laboratory
P.O. Box 1663
Los Alamos, New Mexico   87545
USA

Abstract Text:
Field Reversed Configuration (FRC) plasmas have been created in the Field-Reversed Experiment with Liner (FRX-L) with density 2-6 x 10^22 m^-3, total temperature 300-400 eV, and lifetime on the order of 10 μs. A global energy balance is needed to understand loss mechanisms since FRX-L will eventually generate target plasmas for Magnetized Target Fusion (MTF). We will present the first results of an energy balance for a high-density FRC using the method of Rej and Tuszewski (Phys. Fluids 27, p. 1514, 1984). This method utilizes radiated energy measurements from an end-on wide-view bolometer, average pressure balance data from B-dot magnetic pick-up loops and magnetic flux loops, and profile information from a multichord interferometer. Radial and axial pressure balance completes the analysis for the zero-dimensional case. Preliminary results indicate that particle loss is more dominant for these FRCs than previous experiments, and relative radiation power loss is significantly smaller. These results are reasonable considering the high-collisionality regime of FRX-L. Supported by DOE OFES contract W-7405-ENG-36.

Characterization: A2,E3

Comments:

The University of Texas at Austin

Innovative Confinement Concepts Workshop
February 13-16, 2006
Austin, Texas

ICC 2006 UT logo