Split Image Line Reversal Technique for Shock Temperature Studies.
Abstract
A new experimental technique has been used to obtain line reversal temperature measurements behind reflected shocks in a cesium seeded MHD shock tube. Utilizing a compact single filament, split image arrangement, the apparatus is arranged in line and requires only one set of optics to accomodate both high and low temperature channels. Results in the reflected shock region of a Mach 3 shock were obtained by means of the blue resonance line of the principle series of cesium (lambda 4555A). Temperatures were found to be a few percent lower than given by the Rankine-Hugoniot relations. The difference is attributed to the heat of vaporization of the cesium particles and subsequent ionization. Electron densities based on these temperature measurements were combined with simultaneous free-bound continum radiation measurements and reported recombination cross-sections to yield results consistent with equilibrium calculations. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 20, 1970
- Accession Number
- AD0721090
Entities
People
- A. Guttman
- E. Tate
Organizations
- General Electric