Excluded Flux Analysis of a Field Reversed Plasma
Title | Excluded Flux Analysis of a Field Reversed Plasma PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 1980 |
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A simple eigenvalue approach for mapping the vacuum field between an assumed separatrix and a conducting wall is described. This allows an improved determination of the plasma shape in Field Reversed Experiments (FRX) compared to previous estimates based on excluded flux radius measurements. It is also shown that an array of magnetic field diagnostics located outside the discharge tube cannot resolve features of the plasma shape that have scale length smaller than about a coil radius.
Excluded Flux Analysis of a Field Reversed Plasma
Title | Excluded Flux Analysis of a Field Reversed Plasma PDF eBook |
Author | |
Publisher | |
Pages | 20 |
Release | 1980 |
Genre | |
ISBN |
Scientific and Technical Aerospace Reports
Title | Scientific and Technical Aerospace Reports PDF eBook |
Author | |
Publisher | |
Pages | 1040 |
Release | 1986 |
Genre | Aeronautics |
ISBN |
Energy Research Abstracts
Title | Energy Research Abstracts PDF eBook |
Author | |
Publisher | |
Pages | 420 |
Release | 1993 |
Genre | Power resources |
ISBN |
Publications of Los Alamos Research
Title | Publications of Los Alamos Research PDF eBook |
Author | Los Alamos National Laboratory |
Publisher | |
Pages | 348 |
Release | 1983 |
Genre | Research |
ISBN |
Fusion Energy Update
Title | Fusion Energy Update PDF eBook |
Author | |
Publisher | |
Pages | 116 |
Release | 1980 |
Genre | Controlled fusion |
ISBN |
Theory of Field-reversed Mirrors and Field-reversed Plasma-gun Experiments. Paper IAEA-CN-38
Title | Theory of Field-reversed Mirrors and Field-reversed Plasma-gun Experiments. Paper IAEA-CN-38 PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 1980 |
Genre | |
ISBN |
Experimental and theoretical studies of field reversal in a mirror machine are reported. Plasma-gun experiments demonstrate that reversed-field plasma layers are formed. Low energy plasma flowing behind the initially produced plasma front prevents tearing of the layer from the gun muzzle. MHD simulation shows that tearing can be obtained by impeding the slow plasma flow with a plasma divider. It is demonstrated theoretically that a field-reversed mirror imbedded in a multipole field can be sustained in steady state with neutral-beam injection even in the absence of impurities. MHD stability analysis shows that growth rates of elongated reversed-field theta-pinch configurations decrease with axial extension, which indicates the importance of including finite Larmor radius in the analysis. Tilting-mode criteria are dramatically improved by proper shaping, and a problimak shape is proposed. Tearing mode stability of reversed-field theta-pinches is greatly enhanced by flux exclusion. Self-consistent, 1-1/2-dimensional transport codes have been developed, and initial results are presented.