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http://hdl.handle.net/1903/6999
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| Title: | Plasma-neutral equilibrium in centrifugally confined plasma |
| Authors: | Ng, Sheung Wah |
| Advisors: | Hassam, Adil B |
| Department/Program: | Physics |
| Type: | Dissertation |
| Sponsors: | Digital Repository at the University of Maryland
University of Maryland (College Park, Md.) |
| Keywords: | Physics, Fluid and Plasma (0759) |
| Issue Date: | 17-May-2007 |
| Abstract: | Plasma-neutral interactions are considered for a centrifugally confined plasma,
such as the Maryland Centrifugal eXperiment (MCX), wherein a crossfield plasma
rotation inhibits plasma escape along the magnetic field. Interactions along
the magnetic field are considered first. Analytic and numerical solutions from
a simple one-dimensional isothermal model are obtained. It is shown that for
perfect recycling the neutral density at the wall is exponentially smaller than
the central plasma density for strong centrifugal confinement compared to the
case of no confinement for which the neutral wall density equals the central
plasma density. The exponential factor is effectively
$\exp\left(-M_s^2/2\right)$, where $M_s$ is the sonic Mach number of the
rotation speed. The effective neutral penetration depth along the field, of the
same order as the crossfield penetration depth in the zero confinement limit,
increases significantly in the strong confinement case. From the
one-dimensional c... |
| URI: | http://hdl.handle.net/1903/6999 |
| Appears in Collections: | Physics Theses and Dissertations
UM Theses and Dissertations
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Size | Format | No. of Downloads |
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| umi-umd-4510.pdf | | 1502Kb | Adobe PDF | 108 | View/Open |
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