Accession Number : AD0443158


Title :   SPECTRAL EMISSIVITY OF FLASH COMBUSTION REACTION STUDY PROGRAM


Descriptive Note : Final technical rept. 1 Jun 1963-31 May 1964


Corporate Author : NORTH AMERICAN AVIATION INC LOS ANGELES CA


Personal Author(s) : Gerhauser, J M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/443158.pdf


Report Date : 06 Jul 1964


Pagination or Media Count : 178


Abstract : This study was initiated to provide the additional data required on maximum intensity, spectral distribution, duration, and efficiency of radiation emitted by high energy metal-oxygen reactions and the degree of control that might be achieved over these characteristics. In brief, the study has shown: (1) several reactions produce brightness temperatures above the approximate threshold temperatures for neodymium (3500 to 5000 K) and ruby (5200 K) with a maximum of 600 K achieved; (2) the brightness temperatures are a strong function of pressure with highest temperatures achieved between 2000 and 50,000 psi; (3) except in the early stages of unpressurized reactions where line and band emission are present, the spectral distribution is a continium, but not necessarily a black body distribution; (4) the time duration of the flash can be controlled to within 1/2 to 3 milliseconds; and (5) that these reactions can be effectively used to pump high energy density laser systems.


Descriptors :   *LIGHT , *LASERS , *COMBUSTION , *PYROTECHNICS , LASER PUMPING , MAGNESIUM , BRIGHTNESS , ALUMINUM , CHEMICAL REACTIONS , ZIRCONIUM , PERCHLORATES , CHLORATES , LINE SPECTRA , POTASSIUM COMPOUNDS , EMISSIVITY , TRANSFORMATIONS , BAND SPECTRA , NEODYMIUM , ABSORPTION SPECTRA , RUBY , SODIUM COMPOUNDS , THORIUM , PRESSURE , LIGHT PULSES , PUMPING(ELECTRONICS) , HAFNIUM , HIGH TEMPERATURE , ENERGY , INTENSITY


Subject Categories : Pyrotechnics


Distribution Statement : APPROVED FOR PUBLIC RELEASE