Review of the Los Alamos FRX-C experiment

Conference · Tue Jan 01 04:00:00 EST 1985

DOI:https://doi.org/10.13182/FST86-A24698· OSTI ID:5581438

Siemon, R E; Armstrong, W T; Barnes, D C; Bartsch, R R; Chrien, R E; Cochrane, J C; Hugrass, W; Kewish, R W; Klingner, P L; Lewis, H R

The FRX-C device is a large field-reversed theta pinch experiment, with linear dimensions twice those of its FRX-A and FRX-B predecessors. It is used to form field-reversed configurations (FRCs), which are high-beta, highly prolate compact toroids. FRX-C has demonstrated an R/sup 2/ scaling for particle confinement in FRCs, indicating particles are lost by diffusive processes. Particle losses were also observed to dominate the energy balance. FRC lifetimes exceeding 300 ..mu..s were observed when weak quadrupole fields were applied to stabilize the n = 2 rotational mode. Detailed studies of the FRC equilibrium were performed using multi-chord and holographic interferometry. Measurements of electron temperature by Thomson scattering showed a flat profile and substantial losses through the electron channel. The loss rate of the internal poloidal flux of the FRC was observed to be anomalous and to scale less strongly with temperature than predicted from classical resistivity.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5581438
• Report Number(s): LA-UR-85-1706; CONF-8503137-2; ON: DE85012713
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700200* -- Fusion Energy-- Fusion Power Plant Technology
CLOSED PLASMA DEVICES
COMPACT TORUS
DOCUMENT TYPES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HIGH-BETA PLASMA
PHYSICAL PROPERTIES
PINCH EFFECT
PLASMA
REVERSE-FIELD PINCH
REVIEWS
THERMONUCLEAR DEVICES
THETA PINCH
TORI