The Radial Loss of Ions Trapped in the Thermal Barrier Potential and the Design of Divertor Magnetic Field in GAMMA10

Journal Article · Sat Jan 15 04:00:00 EST 2005 · Fusion Science and Technology

OSTI ID:20849841

Katanuma, I ^[1]; Ito, T ^[1]; Saimaru, H ^[1]; Sasagawa, Y ^[1]; Pastukhov, V P ^[2]; Ishii, K ^[1]; Tatematsu, Y ^[1]; Saito, T ^[1]; Islam, Md K ^[1]; Nakashima, Y ^[1]; Cho, T ^[1]

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1. Plasma Research Center, University of Tsukuba (Japan)
2. I.V.Kuruchatov Atomic Energy Institute (Russian Federation)

The ion radial loss exists in the presence of a non-axisymmetric electrostatic potential in the end-mirror cells of GAMMA10, which leads to a formation of the thermal barrier potential. The non-axisymmetric electrostatic potential can also exist in the central cell. A design for divertor magnetic field of GAMMA10 is performed, the purpose of which is first to reduce an ion radial transport in the central cell by making electrostatic potential circular and second to assure the macroscopic plasma stability of GAMMA10 without help of non-axisymmetric anchor cells which enhances a neoclassical radial transport.

• OSTI ID: 20849841
• Journal Information: Fusion Science and Technology, Journal Name: Fusion Science and Technology Journal Issue: 1T Vol. 47; ISSN 1536-1055
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AXIAL SYMMETRY
DESIGN
DIVERTORS
IONS
MAGNETIC FIELDS
NEOCLASSICAL TRANSPORT THEORY
PLASMA
POTENTIALS
STABILITY
THERMAL BARRIERS
TRAPPING