Abstract

PANDA-P is a new microcomputer program based on a generalized bipartition model of ion transport. Owing to using new, better data about elastic scattering cross sections and electronic stopping power and giving up the power-function approximation to these data, the precision of the generalized bipartition model has been largely improved. PANDA-P can be used to calculate the range distribution, energy deposition and reflection for different ions that are normally or obliquely incident into a semi-infinite, nonmonoatomic solid. The computational efficiency for PANDA-P is about 100 times higher than that for the TRIM-86 Monte Carlo program (5000 testing particles for one time Monte Carlo calculation).

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