A graphical integration method is described for the determination of the fraction of a parallel beam of charged particles which is scattered out of a detector when a foil is interposed before the detector. For the case of circular foils and detectors with common normal axes a generalized graph of percentage particle loss is given which illustrates that, although the loss may be quite large, rather small variations of the experimental parameters can greatly reduce it.
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Dickinson et al. (1953) studied this question.
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