MCNP: mesh with weight window generator

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SUMMARY

The discussion focuses on the use of a mesh-based weight window generator in MCNP (Monte Carlo N-Particle Transport Code). The user inquires about defining a fine mesh selectively within specific geometry bounds, particularly creating bins between y1 and y2 only when x is between x1 and x2. The documentation does not provide examples for this specific case, as existing examples illustrate independent three-axis mesh configurations. The suggestion to seek assistance from the MCNP mailing list, maintained by RSICC, highlights the importance of community support for users facing similar challenges.

PREREQUISITES
  • Understanding of MCNP (Monte Carlo N-Particle Transport Code)
  • Familiarity with mesh-based weight window generators
  • Knowledge of geometry definitions in computational physics
  • Experience with binning techniques in simulation software
NEXT STEPS
  • Research the MCNP user manual for advanced mesh configurations
  • Join the MCNP mailing list for community support and insights
  • Explore examples of weight window implementations in MCNP
  • Learn about geometry constraints and conditional binning in simulation environments
USEFUL FOR

This discussion is beneficial for computational physicists, MCNP users, and researchers involved in particle transport simulations who are looking to optimize their mesh configurations and weight window settings.

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TL;DR
Is there the possibility in MCNP, when using the mesh-based-weight window generator, to define the fine mesh in one direction (x for example), only for an interval of the other direction (between y1 and y2 for example)?
Hallo everybody,
I am using a mesh-based-weight window generator. It is clear to me that the coarse mesh must cover the full geometry; my doubt is about the fine mesh. Is it possible to define the fine mesh only in a part of a geometry, for example telling to MCNP to make 5 bins between y1 and y2 ONLY IF x is between x1 and x2 and a different y binning if x is elsewhere?
I found nothing similar in the documentation; all the examples of mesh I saw are for three axis, independently one from the other.
Thanks for the help.
 
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I wish I could help, but weight window is one of the features of MCNP I have not worked with.

Possibly you could get some help on the MCNP mailing list maintained by RSICC. You need to be a registered license holder to get on that mailing list. But once you are on, you can get the attention of a very large community of MCNP users. Including the developers of the program at times.
 

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