BINDING EFFECT CORRECTIONS IN THE ENERGY-LOSS DISTRIBUTION FUNCTIONS FOR CHARGED PARTICLES PASSING THROUGH THIN ABSORBERS

ABS>In the theoretical treatment of the statistical fluctuation in energy-loss of charged particles passing through thin absorbers, terms which are of the order of the electron binding energy are ordinarily netlected, The corrections required, when thus is no longer justified, are discussed in particular reference to the development by Symon, which has as its limiting cases the Gaussian distribution derived bv Bohr, and Lundaus distribution. Formulas are presented which give the correction for each of the three weighted parameters appearing in Symon as derivation. The corrected parameters can then be used in conjunction with Symons curves to obtain the energy-loss distribution appropriate for a given set of conditions illustration is presented for the cases oi 5-Mev protons and 5-Mev alpha particles. (auth)