Photoelectronic image intensifiers

Image intensifies in microscopy

“…1 have resulted in many more complex designs being evolved. Very full reviews of the various designs have been given by McGee (1961) and Hiltner (1962) and a good idea of current activity in the field can be gathered from the Proceedings of the various Symposia on the subject held at Imperial College, London (McGee & Wilcock, 1960;McGee et al, 1962). For microscopy, however, certain intensifier characteristics would appear to be desirable and these limit the choice of types that warrant discussion here.…”

Ultra-high-speed photography

“…Among these could be mentioned Mandel (1960) who has had made a special version of the Wilcock et al image intensifier in which two meshes are placed across the tube and operated as grid shutters. More information on this tube and many others may be found in a review by McGee (1961). 10.1.…”

“…Recently Huston (1962) has developed, for high-speed work, a tube due to McGee (1952). T h e electron beam from the photocathode is focused magnetically on to a target which consists of a metal backplate on which has been evaporated an insulating layer.…”

“…It must be clearly understood that the work on image tubes described in this article is work specifically directed to ultra-high-speed photography. It is only part of a large field which has been described earlier in reviews, for example by McGee (1961), and in conference proceedings.…”

“…All the foregoing are concerned with the photochemical process. Sommer (1960) and McGee (1961) are papers in which photo-emissive receptor characteristics can be found. I t has not been found possible to include more than one or two records in this report.…”