My running worked fine, but I was only able to obtain the flux value. As shown in the figure below, all fission rates are zero. Could there be something wrong here or what would cause these fission rates to become zeroes?
Since I’m a new user, I am not able to upload files, so I have attached screenshots. it’s PWR core. In case you need more information, just tell me and I will provide it.
@Mz-912 welcome to the community and sorry to hear you’re having trouble with these tallies. I see that you have a 100x100x1 mesh tally. One sanity check you can do is to change the mesh to be 1x1x1 covering the same physical domain and see if you still get a zero fission rate. If the mesh truly covers the fuel, you should see values that agree with your first tally that doesn’t have a mesh filter.
