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Title Cross field transport of electrons : Implications for the POLAR code, spacecraft charging / David L. Cooke, Charles Dubs, Michael Heinemann.
Imprint Hanscom, AFB, Mass. : Air Force Geophysics Laboratory, United States Air Force, 1988.


 GovDocs Federal  D 301.45/39:1003    AVAILABLE
Description iii, 17 p. : ill. ; 28 cm.
Series Environmental Research Papers ; No. 1003.
AFGL TR ; 88-127.
U.S. Air Force Geophysics Laboratory. AFGL TR ; 88-127.
Note "17 May 1988."
ADA204392 (from
Space Physics Division Project 7601.
Research supported by the Air Force Geophysics Laboratory, United States Air Force, Hascom AFB, Massachusetts.
Bibliog. Includes bibliographical references (p. 17).
Subject Plasma sheaths.
Space vehicles -- Electrostatic charging.
Electron transport.
Summary Early studies of electron transport in crossed E and B fields have been reviewed and applied to the case of a positive surface moving in the ionosphere. That work points to the importance of the parameter q = omega p2/omega c2 in determining self consistent spacecharge distributions in cross field diodes, and similarly, a crossed field probe plasma sheath in non linear, non adiabatic limits. The application of existing theory to the problem of electron collection by a surface aligned with B indicates that for q > 1/2 the plasma sheath is only slightly perturbed by B, but for q < 1/2 the sheath cannot form without electrons transported along B from the ends.
Other Author Dubs, Charles W.
Heinemann, Michael.
U.S. Air Force Geophysics Laboratory.