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McStas

McStas

McStas is an open source software simulator for neutron scattering instruments and experiments. The software consists of a compiler that translates instrument and component definitions to C code.

McStas is based on a compiler that reads a high-level specification language defining the instrument to be simulated and produces C code that performs the Monte Carlo Simulation. The system is very fast in use, both when setting up the instrument definition and when doing calculations.

McStas is based on a unique design where an automatic compilation process translates high-level textual instrument descriptions into efficient ANSI-C code. This design makes it simple to set up typical simulations and also gives essentially unlimited freedom to handle more unusual cases.

 McStas 2.1

Price
Free to download

Size
10.8MB
License

GNU LGPL

Developer
Risų / ILL / KU

Website
www.mcstas.org

System Requirements
Perl
Tk
perl-tk

Optional:
Matlab
VRML viewer (e.g. FreeWRL)
OpenMPI or MPICH
Octave
Gnuplot

Support:
Manual, FAQ, Mailing List, Tutorial, Facebook

Selected Reviews:

Features include:

  • Very fast in use
  • Supports triple-axis
  • Supports time-of-flight instruments
  • Supports polarised neutrons
  • Library of well-tested components that include most standard elements of neutron scattering instruments, including steady-state and pulsed sources, monochromators/analysers, guides, collimators, vanadium and powder samples, velocity selectors and choppers, and a variety of detectors
  • Generates histograms (tallies) as formatted (easy to read) text files. Such text files may be read by the McStas internal plotter using PGPLOT, but also using Matlab, Scilab, VRML/HTML (web page), HDF/NeXus, XML/NeXus, Octave, IDL and more
  • Comprehensive manual

McStas in action

Return to Physics Tools Home Page

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Last Updated Monday, May 25 2015 @ 12:18 PM EDT


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