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STUDY OF PLASMAS IN HYPERSONIC FLOW,
UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES ENGINEERING CENTER
A Mach 6 low-density nozzle has been designed and constructed for studies of the decay of a nitrogen plasma after excitation by a radio-fre quency discharge. Aerodynamic measurements have been made of the Mach number and density distri bution for both cold and hot flow conditions. A method of measuring the heavy particle temper ature in a plasma is described using the rota tional structure of the N sub 2 second positive band system. Author