Slow formation of field-reversed configuration by use of two merging spheromaks
Journal Article
·
· Fusion Technology
OSTI ID:219797
- Univ. of Tokyo (Japan)
A novel slow formation method of field-reversed configuration (FRC) has been developed by magnetic reconnection of two force-free spheromaks with opposite toroidal magnetic field. The merging process cancels their opposite magnetic helicities, realizing a non-Taylor relaxation from the force-free state to the high-{beta} FRC state with zero helicity. A significant increase in the ion temperature has been documented up to 180 eV during this fully anti-parallel reconnection. The dissipated toroidal magnetic energy of the merging toroids is transformed mostly to the ion thermal energy, revealing a unique relaxation mechanism to the high-beta equilibrium. The merging toroids are found to relax either to an FRC or to a new spheromak, depending on whether their total helicity is larger or smaller than a critical value. 10 refs., 5 figs.
- OSTI ID:
- 219797
- Report Number(s):
- CONF-941182--
- Journal Information:
- Fusion Technology, Journal Name: Fusion Technology Vol. 27; ISSN 0748-1896; ISSN FUSTE8
- Country of Publication:
- United States
- Language:
- English
Similar Records
Formation of field reversed configuration by magnetic reconnection of two spheromaks
Formation of a field-reversed configuration by coalescence of spheromaks
Study of the magnetic-field evolution in the spheromak merging experiment
Conference
·
Wed Jul 20 00:00:00 EDT 1994
· AIP Conference Proceedings (American Institute of Physics); (United States)
·
OSTI ID:7155377
Formation of a field-reversed configuration by coalescence of spheromaks
Journal Article
·
Fri Mar 31 23:00:00 EST 1995
· Fusion Technology
·
OSTI ID:219798
Study of the magnetic-field evolution in the spheromak merging experiment
Thesis/Dissertation
·
Wed Dec 31 23:00:00 EST 1986
·
OSTI ID:5503842