The photographic properties of electrons accelerated by potentials below 50 kv have been investigated, with the general problem of data recording in mind. Recording systems using electrons directly for making the exposure offer advantages, particularly in speed, photographic resolution and absence of phosphor grain, over systems using conventional cathode-ray-tube photography. A strictly experimental system of this type has been developed for TV film recording.
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Tarnowski et al. (1962) studied this question.
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