Electron Beam Fluorescence in Hypersonic Facilities

A.K. Mohamed, J. Bonnet, S. Larigaldie, T. Pot, J. Soutadé & B. Diop
The Electron Beam Fluorescence (EBF) technique is well-suited to providing local measurements in low-density high-speed flows for atmospheric reentry studies. High fluorescence yields are obtained from the excitation of the molecules or atoms of a gas flow with high energy electrons, which makes this technique advantageous for studying very low density gases. The most common measurement is flow field visualization with a sweeping electron beam (or sheet of electrons) from which shock structures of the...