Neutron ray-trace simulation - Python code library

 McStas is a tool for carrying out Monte Carlo ray-tracing simulations
 of neutron scattering instruments with high complexity and
 precision. The simulations can compute all aspects of the performance
 of instruments and can thus be used to optimize the use of existing
 equipment, design new instrumentation, and carry out virtual
 experiments for e.g. training, experimental planning or data
 analysis.
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 McStas is based on a unique design where an automatic compilation
 process translates high-level textual instrument descriptions into
 efficient ISO-C code.
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 This package contains Python libraries.