Abstract
A uniform neutral dilute ionized gas is assumed to be perturbed by a sphere moving through it. The radar return from the disturbed region is obtained by integrating the Compton scattering from the electrons, taking phase into account, but ignoring secondary scattering and attenuation. The electron density distribution for this computation is obtained by integration of the zeroth order velocity distribution function for neutral particles obtained by Wang Chang (6) as a solution of the Boltzmann transport equation. Numerical results are obtained for the perturbation of the electron distribution by a sphere travelling at 8 km sec and an altitude of 500 km and for the radar cross-section of this perturbed region when viewed broadside ∗ ∗ The theoretical work and preliminary computations were supported by USAF Contract AF 30(602)-1853. The final machine computations were carried out as an unsponsored faculty research project MO2-N at the Computation Laboratory of The University of Michigan.
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