Excess electron emission from condensed krypton

Experimental data on excess electron emission from liquid and solid krypton are presented. It is shown that ionization of gaseous and condensed heavy noble gases is followed by an effective scintillation, the luminescence yield of which, being converted by terfenil, in the visible spectrum is comparable to NaI(Tl) luminescence yield. The model of a hot electron emission based on Lekner theory is discussed. The possibility of emission of relatively cold electrons is considered. It is shown that gravitation-capillary instability of a condensed noble gas surface in a local field of excess electrons, forced to the interface by an external field may underlie the process