Abstract

The electron beam fluorescence technique for measuring simple one-dimensional moments of helium velocity distribution functions has been extended for use with argon. Measurements made in argon-helium gas mixture shock waves at low Mach numbers are presented. Parallel and perpendicular temperature profiles are shown for each gas. Macroscopic velocities for each gas were measured by determining the blue shifts in the line profiles when the line of sight was directly upstream. The results are compared with existing theories and other experimental results.

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