Observation of the self-generated toroidal magnetic field in rotamak

Journal Article · Mon Aug 15 04:00:00 EDT 2005 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2007719· OSTI ID:20764474

Petrov, Yuri; Fangchuan, Zhong; Tiansen, Huang ^[1]

---

1. Prairie View A and M University, Prairie View, Texas 77446 (United States)

An experimental study of the self-generated toroidal magnetic field in rotamak field-reversed configuration plasmas is performed in the case of high input power (200 kW), long-duration (40 ms) discharges. In one round of experiments, the polarity of the toroidal field in the poloidal cross section is different not only from one hemisphere to another but also in radial direction. In another round of experiments, the toroidal field is seen to reverse its sign in the course of a shot. The data for the field are fitted with the vector spherical harmonic functions. The poloidally swirling currents associated with the self-generated toroidal field are shown to contribute to the formation of the two-peak structure of the toroidal plasma current.

• OSTI ID: 20764474
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 12; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHARGED-PARTICLE TRANSPORT
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
FIELD-REVERSED THETA PINCH DEVICES
MAGNETIC FIELDS
PLASMA
REVERSE-FIELD PINCH
REVERSED-FIELD PINCH DEVICES
SPHERICAL CONFIGURATION
VECTORS