Methods of one and two dimensional x-ray image dissection using a channel multiplier array are discussed in which the position of incidence of any detected photon can be found, within the limits of the electronic dead time. Results for one dimensional systems in which spatial resolutions of 50 pm have been achieved and of a prototype two dimensional system having a similar resolution are reported and further developments and alternative methods of dissection are considered.
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Gott et al. (1970) studied this question.