Funz plugin: MCNP

This plugin is dedicated to launch MCNP calculations from Funz. It supports the following syntax and features:

• Input

  • file type supported: any MCNP standard input file
  • parameter syntax:
    • variable syntax: %(...)
    • formula syntax: @{...}
    • comment char: C (note that it holds two chars)
  • example input file:

    Godiva-type critical reactor and kcode example
    c skip 10 and run a total of 110 keff cycles with 1000 neutrons per cycle
     1    1  -18.74  -1  imp:n=1   $ enriched uranium sphere (godiva)
     2    0           1  imp:n=0   $ all space outside the sphere
    
     1    so %(r~8.741)                 $ radius of the godiva sphere
    
     kcode 1000 1.0 10 1010         $ kcode defines a criticality calculation
     ksrc  0 0 0                   $ initial keff spatial dist is point at origin
     m1    92235 -93.71  92238 -5.27  92234 -1.02  $ define u with weight fractions
    

    • will identify input:
      • r, expected to be around 8.71

• Output

  • file type supported: '*o'
  • read criticality values printed
  • example output file:

    ...
    
     -----------------------------------------------------------------------------------------------------------------------------------
     |                                                                                                                                 |
     | the final estimated combined collision/absorption/track-length keff = 0.99946 with an estimated standard deviation of 0.00063   |
     |                                                                                                                                 |
    ...
    

    • will return output:
      • mean_keff=0.99946
      • sigma_keff=0.00063