Accession Number : AD0443406


Title :   THE TERRESTRIAL RING CURRENT,


Corporate Author : RAND CORP SANTA MONICA CA


Personal Author(s) : Ray, Ernest C


Report Date : Jul 1964


Pagination or Media Count : 20


Abstract : Several people have computed numerically the magnetic field caused by an axially symmetric body of plasma imbedded in a dipole magnetic field. An approximate formula for this magnetic field is derived without first choosing a particular functional form for the plasma density. This has the consequence that one can easily discuss any particular case without recourse to a computer, whereas previous treatments resulted in a tabulation of an answer for a particular case only, and new cases required new computer runs. The method used avoids the usual fine net required by the singularity in the integrand. This is achieved by constructing a new quadrature formula which treats this singularity exactly. The then permitted coarse net makes possible an algebraic treatment rather than a numerical one. (Author)


Descriptors :   *PLASMAS(PHYSICS) , MAGNETIC FIELDS , AXISYMMETRIC FLOW , INTEGRAL EQUATIONS , GEOMAGNETISM


Distribution Statement : APPROVED FOR PUBLIC RELEASE