- #1

19matthew89

- 47

- 12

- TL;DR Summary
- I was expecting MCNP tallies, being normalized to number of particles, should always be <1

Hi everyone,

I'm really new to MCNP here and I'm "playing" around trying to understand what is going on.

I think I am having problems understanding

If so, I'm still not getting how comes that MCNP tallies can be larger >1. Aren't they supposed to be a fraction of all the particles and so, inherently <1? However, for some F2 tallies, I'm getting values way bigger than 1 (even 1 or so). How is that possible?

Thanks a lot in advance!

I'm really new to MCNP here and I'm "playing" around trying to understand what is going on.

I think I am having problems understanding

- what, in a criticality calculation, the MCNP tallies are normalized to
- consequently, how comes they can be >1.

If so, I'm still not getting how comes that MCNP tallies can be larger >1. Aren't they supposed to be a fraction of all the particles and so, inherently <1? However, for some F2 tallies, I'm getting values way bigger than 1 (even 1 or so). How is that possible?

Thanks a lot in advance!