Abstract
In choosing an image tube''s phosphor type, the system designer is confronted with several unknowns, depending on the tube''s gating time, repetition rate, etc. This paper reports on some measurements made toward a better understanding of the factors involved -- temporal and spectral issues, and efficiency of coupling to a silicon detector -- for some of the common phosphors, such as P-20, P-43, P-46, P-47, and a red rare-earth phosphor.