Abstract

The penetration of 1–20 keV H +, D +, He +, Li +, N +, Ne +, and K + ions through carbon foils of nominally 2 μg/cm 2 thickness has been studied experimentally. The observed energy loss for these ions is approximately proportional to the product of the incident ion velocity and the ion atomic number, ( Z i v i). The energy loss does not show a dependence on scattering angle. The measured angular width of particles scattered by the foil is observed to be approximately proportional to Z i/ E i where E i is the incident ion energy. From these results, we conclude that effects due to nuclear collisions are not significant in the energy and atomic number range under study.

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