SPECTRAL EMISSIVITY OF FLASH COMBUSTION. REACTION STUDY PROGRAM.
Progress rept., 1 July-1 Aug 63.
NORTH AMERICAN AVIATION INC LOS ANGELES CALIF
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A computer program originally directed towards predicting adiabatic flame temperatures in evaluating rocket propellant performance has been adapted to find potentially good chemical light sources. Results have discolosed several chemical reactions which proceed at a temperature greater than 5500 K, which will be candidates for future investigations. Test equipment has been designed, constructed and calibrated to yield brightness temperature measurements of chemical flashes. Two separate experimental setups have been operating, permitting crosscheck procedures to be employed. One arrangement consists of a high-resolution spectrograph and two photomultiplier tubes to give detailed, narrow-band spectral radiance measurements, while the other setup consists of four filterplus-phototube sensors for rapid-sequence wideband measurements. Photometric studies of the light output of chemical reactions have been started to supplement the spectral photography previously undertaken. Sample data have been taken using aluminum plus magnesium plus sodium chlorate. This sample was chosen for convenience and ease of handling rather than light output capability or short reaction time. Author