Matches in SemOpenAlex for { <https://semopenalex.org/work/W2081796794> ?p ?o ?g. }
- W2081796794 endingPage "357" @default.
- W2081796794 startingPage "337" @default.
- W2081796794 abstract "We present a survey of a very incomplete subject. The best-developed and simplest theories for current collection in magnetic fields are steady-state collisionless theories, and these must be understood before departures from them can be analyzed usefully, so we begin with a review of them. Recent numerical results indicate that steady-state collisionless Laplace-limit currents remain substantially below the Parker-Murphy (1967) canonical upper bound out to very large electrode potentials and approach it as a limit only very slowly if at all. Attempts to correct this theory for space-charge effects lead to potential disturbances which extend to infinite distance along the electrode's magnetic shadow, unless collisional effects are also taken into account. However, even a small amount of relative plasma drift motion, such as that involved in a typical rocket experiment, can change this conclusion fundamentally. It is widely believed that time-averaged current collection may be increased by effects of plasma turbulence, and we review the available evidence for and against this contention. Steady-state collisionless particle dynamics predicts the existence of a toroidal region of trapped orbits which surrounds the electrode. Light emissions from this region have been photographed, indicating that collisional ionization may also occur there, and this, and/or scattering by collisions or possibly turbulent fluctuations in this region, may also increase current collection by the electrode. We also discuss effects on particle motions near the electrode, associated with “breakdown of magnetic insulation” in the region of large electric fields near it." @default.
- W2081796794 created "2016-06-24" @default.
- W2081796794 creator A5008289886 @default.
- W2081796794 creator A5089572110 @default.
- W2081796794 date "1993-01-01" @default.
- W2081796794 modified "2023-09-24" @default.
- W2081796794 title "Current collection by probes and electrodes in space magnetoplasmas: A review" @default.
- W2081796794 cites W1608845384 @default.
- W2081796794 cites W1643397751 @default.
- W2081796794 cites W1673474460 @default.
- W2081796794 cites W176653751 @default.
- W2081796794 cites W1842105652 @default.
- W2081796794 cites W1965459916 @default.
- W2081796794 cites W1968614455 @default.
- W2081796794 cites W1969039411 @default.
- W2081796794 cites W1971504281 @default.
- W2081796794 cites W1972096783 @default.
- W2081796794 cites W1974008431 @default.
- W2081796794 cites W1975847040 @default.
- W2081796794 cites W1977702959 @default.
- W2081796794 cites W1979521411 @default.
- W2081796794 cites W1980006828 @default.
- W2081796794 cites W1980258025 @default.
- W2081796794 cites W1984342996 @default.
- W2081796794 cites W1985710839 @default.
- W2081796794 cites W1992590075 @default.
- W2081796794 cites W1993703233 @default.
- W2081796794 cites W1996194636 @default.
- W2081796794 cites W2004414028 @default.
- W2081796794 cites W2005536715 @default.
- W2081796794 cites W2006379227 @default.
- W2081796794 cites W2008234431 @default.
- W2081796794 cites W2012689325 @default.
- W2081796794 cites W2013415598 @default.
- W2081796794 cites W2015718635 @default.
- W2081796794 cites W2016663607 @default.
- W2081796794 cites W2025342954 @default.
- W2081796794 cites W2026266147 @default.
- W2081796794 cites W2027686175 @default.
- W2081796794 cites W2028708304 @default.
- W2081796794 cites W2032209480 @default.
- W2081796794 cites W2033474949 @default.
- W2081796794 cites W2033856825 @default.
- W2081796794 cites W2034972796 @default.
- W2081796794 cites W2036628464 @default.
- W2081796794 cites W2037361116 @default.
- W2081796794 cites W2041169294 @default.
- W2081796794 cites W2041972029 @default.
- W2081796794 cites W2050579749 @default.
- W2081796794 cites W2051617836 @default.
- W2081796794 cites W2052813535 @default.
- W2081796794 cites W2053239756 @default.
- W2081796794 cites W2054913948 @default.
- W2081796794 cites W2056203918 @default.
- W2081796794 cites W2056794908 @default.
- W2081796794 cites W2057046098 @default.
- W2081796794 cites W2057854535 @default.
- W2081796794 cites W2058233750 @default.
- W2081796794 cites W2058757798 @default.
- W2081796794 cites W2059871821 @default.
- W2081796794 cites W2060232603 @default.
- W2081796794 cites W2061692879 @default.
- W2081796794 cites W2064274680 @default.
- W2081796794 cites W2064803980 @default.
- W2081796794 cites W2065109361 @default.
- W2081796794 cites W2065217013 @default.
- W2081796794 cites W2065818478 @default.
- W2081796794 cites W2066823098 @default.
- W2081796794 cites W2069352698 @default.
- W2081796794 cites W2075296622 @default.
- W2081796794 cites W2077376639 @default.
- W2081796794 cites W2078654166 @default.
- W2081796794 cites W2079629883 @default.
- W2081796794 cites W2080223335 @default.
- W2081796794 cites W2081336364 @default.
- W2081796794 cites W2081566272 @default.
- W2081796794 cites W2086130342 @default.
- W2081796794 cites W2098235981 @default.
- W2081796794 cites W2105949118 @default.
- W2081796794 cites W2107295061 @default.
- W2081796794 cites W2114386173 @default.
- W2081796794 cites W2120577333 @default.
- W2081796794 cites W2123040025 @default.
- W2081796794 cites W2129211990 @default.
- W2081796794 cites W2134806629 @default.
- W2081796794 cites W2138495272 @default.
- W2081796794 cites W2145465915 @default.
- W2081796794 cites W2156096065 @default.
- W2081796794 cites W2158933242 @default.
- W2081796794 cites W2163613973 @default.
- W2081796794 cites W2165998408 @default.
- W2081796794 cites W2496512644 @default.
- W2081796794 cites W2500051900 @default.
- W2081796794 cites W2507004136 @default.
- W2081796794 cites W3023391520 @default.
- W2081796794 cites W4246135398 @default.
- W2081796794 cites W99315301 @default.
- W2081796794 cites W1970009903 @default.