Accession Number : AD0428730


Title :   TIME-DEPENDENT INFRARED STUDIES.


Descriptive Note : Final rept,


Corporate Author : SOUTHWESTERN AT MEMPHIS TENN


Personal Author(s) : Taylor,J H


Report Date : Dec 1963


Pagination or Media Count : 228


Abstract : The following work is covered in this report: A mobile observatory was built that enables one to take infrared spectroscopic and radiometric equipment on field expeditions. A 31 inch diameter (f/2) radiometer and PbS detector were used to study near infrared radiation from chemical releases during Project Firefly (July-August 1960). The High Altitude Observatory's 16in. diameter coronagraph was used in conjunction with a Perkin-Elmer Model 12C infrared spectrometer to observe the radiation from the solar atmosphere in the region from 0.936 - 2.173 microns. Spectra were obtained using a DF-2 prism and PbS detector. A Perkin-Elmer Model 112 (double pass) spectrometer was used to study solar spectra as a function of zenith angle of the sun. The spectrometer was equipped with a sodium chloride prism and a thermistor bolometer detector. A highly selective detector has been used in an attempt to measure the time required for converting the molecular vibrational energy of an infrared absorbing gas into translational energy. The detector is a Golay cell filled with the gas under investigation. The near infrared emission spectra of severalgases usually available in the laboratory are presented. These spectra have been most useful for prism calibrations. (Author)


Descriptors :   *INFRARED RESEARCH , TIME , INFRARED PHENOMENA , INFRARED RADIATION , INFRARED SPECTROSCOPY , HIGH ALTITUDE , SOLAR ATMOSPHERE , TRANSMISSIONS(MECHANICAL) , VIBRATION , QUANTUM THEORY , CALIBRATION , INFRARED SCANNING


Distribution Statement : APPROVED FOR PUBLIC RELEASE