Abstract Details

Equilibrium and stability of oblate free-boundary FRCs in MRX

Author: Stefan P. Gerhardt
Submitted: 2005-12-21 15:34:40

Co-authors: M. Inomoto, M. Yamada, E. Belova, H. Ji, Y. Ren

Contact Info:
Princeton Plasma Physics Laboratory
PO Box 451
Princeton, NJ   08543
USA

Abstract Text:
A campaign studying the formation and stability FRC plasmas has been in progress in the Magnetic Reconnection eXperiment (MRX). These FRCs are formed by the counter-helicity merging of two spheromak plasmas, a technique pioneered at the TS-3 device [1] and recently utilized at SSX[2]. These experiments were made possible by a recent upgrade to the MRX device, including extensions to the vacuum vessel, new “Shaping Field� magnets, upgraded power supplies, and installation of a copper center-column to passively stabilize the spheromaks during formation and translation. Utilizing the flexibility of the MRX coil-sets, we have the ability to create plasmas with range of different separatrix shapes (0.8
1. Y. Ono and M. Inomoto, Phys. Plasmas 7, 1863 (2000).
2. C. Cothran, et al, Phys. Plasmas 10, 1748 (2003).
3. H. Ji, et al, Phys. Plasmas 5, 3685 (1998).
4. M. Yamada and H. Ji, “Magnetic Reconnection and Self-organization Plasma Systems�, J. Plasma Fusion Res. Series, v.2, 62-66 (1999), H. Ji and M. Yamada, “Physics Issues of a Proposed Program, SPIRIT�, ibid, 195-197.

Characterization: A1,A2

Comments:

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