Abstract Details

Presentation:submitted:by:
frxl_intrator_icc2006.pdf2006-03-15 00:43:56Tom Intrator

A high plasma pressure Field Reversed Configuration at Los Alamos National Laboratory

Author: Tom P Intrator
Submitted: 2005-12-20 13:30:17

Co-authors: G.A. Wurden, S.Y. Zhang, W.J, Waganaar, R,. Renneke, I. Furno, M. Kostora, L. Dorf, S.C. Hsu, A. Light – LANL; A. Lynn, M. Gilmore - Univ New Mexico, Albuquerque; J. Degnan, C. Grabowski, E. Ruden – Air Force Research Laboratory – Kirtland AFB; R.

Contact Info:
Los Alamos National Laboratory
Building 421
Los Alamos, NM   87545
USA

Abstract Text:
We describe the experimental program and goals of FRX-L, which is a high density and pressure Field Reversed Configuration (FRC) experiment at Los Alamos National Laboratory. The purpose of FRX-L is provide a robust plasma target for Magnetized Target Fusion (MTF), which could be a low cost path to fusion, in a regime that is intermediate between magnetic and inertial fusion energy. One recent result is the achievement of high plasma pressure (>20-30 atmospheres) and density (> 6e16cm^-3). The resultant short Coulomb mean free path coexists with a large Lundquist number which is usually taken to signal a collisionless regime. We show that the anomalous increase of resistivity over the Spitzer value gets smaller as density increases. This FRC plasma regime has never been investigated with spatially resolved diagnostics, such as density profiles that can be unfolded with our multi chord interferometer. The key technology advance that makes the previous results possible is the successful operation of a much improved crowbar switch for the main bank current. Other recent program progress includes installation of a passive mirror onto the existing theta coil to improve the axial centering of the FRC, and the second generation design for the impending translation and implosion experiment.

supported by DOE OFES contract W-7405-ENG-36

Characterization: A1,A2

Comments:
please group FRXL posters together. This submission is for a talk, and hopefully an invited talk.

The University of Texas at Austin

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

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