PMC is a three-dimensional Monte Carlo program written in the MAP language for the IBM 7040 computer. Output includes the scalar neutron flux integrals and reaction rates for resonant isotopes for an arbitrary energy group structure containing a minimum of approximations. The code is espe¬cially applicable to complex geometrical situations and areas where diffusion theory will not be reliable. A statistical confidence is assigned to the results. Two versions of the program are described: a "nonresonant" version in which all cross sections are supplied in the input, and a "resonant" version in which resonant cross sections are computed directly.nSimplified flow diagrams and sample problems showing the use of each version are given.
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