AbstractAbstract
[en] The low-velocity stopping power formula of Lindhard and Scharff (1961) was rederived; when scaled with a different definition of the TF unit of length for the projectile-target quasimolecule, it agreed with the semiempirical fits of Andersen and Ziegler (1977) up to v1 = 2/3 - the agreement was no worse than seen in previous comparisons of these fits with the calculations of Echenique et al. (1981, 1986). Bethe's high-velocity stopping power was employed with a semitheoretical function for the average ionization potential - this function was constructed to equal 15 eV for hydrogen. The Andersen-Ziegler fits were found to converge to this high-velocity formula; measurements with GeV-protons stopped in the lightest targets are needed to verify the universal utility of Bethe' stopping power in the high-velocity limit. Further work in progress will search for an expedient but more justified (if not simpler) L for all proton velocities
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Oak Ridge National Lab., TN (United States); 680 p; Apr 1990; p. 85-100; 12. Werner Brandt international workshop on charged particle penetration phenomena; San Sebastian (Spain); 4-7 Sep 1989; OSTI as DE90012031; NTIS; INIS
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Report
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Conference
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