Tandem mirror experiments in GAMMA 10

Journal Article · Thu Jun 01 04:00:00 EDT 1995 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.871256· OSTI ID:165303

Tamano, T ^[1]

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1. Plasma Research Center, University of Tsukuba, Ibaraki 305 (Japan)

Confinement of ion cyclotron resonance heating (ICRH) plasmas in the GAMMA 10 tandem mirror [Phys. Rev. Lett. {bold 55}, 159 (1985)] has been investigated. Magnetohydrodynamic (MHD) stability is provided by the axisymmetrized minimum-{ital B} system. Ion confining and thermal barrier potentials are produced only by electron cyclotron resonance heating (ECRH). Ions are heated to several keV and hot ion modes, where {ital T}{sub {ital i}}/{ital T}{sub {ital e}}{gt}({ital m}{sub {ital i}}/{ital m}{sub {ital e}}){sup 1/3}, are produced. Ion pressure in the central cell increases approximately linearly both with the power radiated from the antennas and with the magnetic field. A record ion temperature of about 10 keV is obtained at the maximum magnetic field ({similar_to}0.57 T). Thermonuclear fusion neutrons are detected in a deuterium/hydrogen mixture plasma for the first time in a tandem mirror. In typical GAMMA 10 operations, strong radial electric fields are naturally produced, and density fluctuations are suppressed. Axial confinement of the core plasma is consistent with the classical potential confinement, indicating radial confinement is better than axial confinement. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

• OSTI ID: 165303
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 6 Vol. 2; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DEUTERIUM
ECR HEATING
GAMMA 10 DEVICES
HYDROGEN
ICR HEATING
MAGNETIC MIRRORS
MHD EQUILIBRIUM
NEUTRONS
PLASMA CONFINEMENT
PLASMA HEATING
TANDEM MIRRORS
THERMONUCLEAR DEVICES