Electron beam fluorescence methods in hypersonic aerothermodynamics

Abstract

Experimental methods using the decades-old electron beam fluorescence technique (EBFT) are reviewed in an historical perspective, with an emphasis on applications relating to hypersonic aerothermodynamics. The various gases of aerothermodynamic interest are discussed and research work relating to their use with the EBFT is reviewed. The different experimental techniques are described and typical experimental results from previous research work are presented for each method. This compilation of research activity identifies the areas in high-speed flows where electron beam fluorescence measurement methods can be successfully applied. EBFT applications for a variety of hypersonic and short-duration flow facilities are also discussed and recent activity relating to the use of electron beams, primarily in hypersonic aerothermodynamics, is highlighted. An extensive bibliography of over 450 references is included.