A surface durable and strongly bonded phosphor viewing screen for T.E.M.

A simple procedure is described for the preparation of a totally inorganic, durable, strongly bonded, and non-shrinking phosphor viewing screen. The procedure requires no special apparatus or skills in order to prepare a fairly uniform high resolution screen in only about 0.5 hours plus drying time. The screens are suitable for use on an automatic exposure system where mechanical shock can destroy a screen.