plugin-mcnp's Introduction

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   |
 |                                                                                                                                 |
...