Shielding Lengths in Magnetospheric and Interplanetary Plasmas.
Research rept., Aug-Oct 72,
AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS
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A method is presented for estimating the characteristic shielding length of a spherical object that is immersed in a plasma when photoelectrons are being emitted by the object. In agreement with experimental evidence, the calculation reveals that shielding lengths for small probes are significantly closer to the Debye length than previously thought. These arguments are important for objects 1m or less in diameter that are in the magnetosphere beyond the plasmasphere and in interplanetary space. This method of estimation is specifically applicable to thick sheaths previous methods have assumed that sheaths would be thin compared with the size of the shielded object. Author
- Atmospheric Physics
- Plasma Physics and Magnetohydrodynamics