Application of Atomic Fluorescence to Measurement of Combustion Temperature in Solid Propellants.
Abstract
Three rare-earth-ion crystals were shown to be good candidates for surface temperature measurements on energetic materials by laser-induced fluorescene. Dy+3:LaF3 displays a thermalization process with an energy gap of 1070/cm, resulting in a fluorescene intensity change of approx. 200 over a 700-K temperature range. Cr+3:Al2O3 (ruby) displays an extreme temperature sensitivity to the lifetime of the R-fluorescence lines. The lifetimes are observed to change by a factor of approx. 230 over a 500-K temperature range. ER+3:CaF2 shows a temperature sensitivity of 20 over a temperature range of 700 K, as measured by the lifetime of its energy level fluorescence line. Originator supplied keywords include: Surface-temperature measurement, Laser-induced fluorescence, Solid-fuel propellants, Rare-earth ions, Nonintrusive evaluation, Optical diagnostics.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1984
- Accession Number
- ADA150733
Entities
People
- A. A. Smith
- L. P. Goss