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## Main Question or Discussion Point

Hi. I need some help with the use of tally card in MCNP. I have been trying to use the f1, f4 and f2 tally to calculate surface current, average flux on a cell and avergage flux on a surface respectively, my question is: It's possible use those kind of tallies with macrobodies and surfaces defined by equations at the same time?, in other words; I can use it for macrobodies and for surfaces?

Thank you.

Thank you.