Low-speed limit of Bohr close-quote s stopping-power formula

Bohr close-quote s classical (nonrelativistic) model of charged-particle stopping is evaluated explicitly for arbitrary values of projectile charge and speed. This removes the logarithmic cutoff from the original expression and generates a stopping formula which can be utilized also to extend the range of practical applicability of Bloch close-quote s theory. As expected such a formulation appears to be a better starting point than the Born approximation for estimating stopping powers of heavy ions at velocities v<Z1e2/ℎ. copyright 1996 The American Physical Society