PROGRESS ON SAPAG FACILITY, III
HELIODYNE CORP LOS ANGELES CA
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Heliodyne Corporation is investigating the ionization and radiation properties of reentry vehicle materials under conditions which simulate those of actual flight. The experimental program involves the preparation of representative materials into sub-micron sized particles under carefully controlled conditions, the injection of these particles into a shock tube, and the measurement of electron density and radiation as a function of distance behind the shock. From the results obtained, the chemical kinetics of the ablation process and the phenomenology of reentry observables can be elucidated. For this reporting period, refinements in apparatus and techniques for the production of ultra-fine particles, particularly of organic ablators, are described. Representative photomicrographs of powder preparations, as well as number density distribution curves, are presented and discussed. The results of light scattering investigations of aerosol distribution and stability are analyzed. Further modifications to the facility, based in part on the results of the above studies, and further development of instrumentation, are also included.
- Test Facilities, Equipment and Methods
- Unmanned Spacecraft