I need help with the JEFF library

Installation
1

Hello all,

Good afternoon! I am new using both flair and fluka, and recently tried to run the examp.in with some minor modifications. However I keep getting this error:

ERROR: could not load neutron cross section for isotope Z=8 A=16 m=0
 Abort called from PWNADDISO reason Error loading neutron cross section for isotope Run stopped!
 STOP Error loading neutron cross section for isotope

Which I believe it indicates issues with JEFF. My fluka installation is located here: /home/mrretr0/fluka/fluka4-4.1 where JEFF is located in: /home/mrretr0/fluka/fluka4-4.1/data/neutron and the files it contains in the folder JEFF are: Inelastic, README.fluka, README.g4 and Version.tag. I installed JEFF from the next tgz file: fluka_pw_jeff-3.3-1-1.tgz. And simply pasted its contents inside the neutron folder. I have tried to reinstall but nothing works. Do you know what to do? Likewise, here I also share the .inp file I am trying to use.

Thank you for your attention to this issue and have a nice day.

Best,
FCV
example_slides.inp (3.7 KB)

2

In the fluka4-4.1/data/neutron/JEFF-3.3 folder, in addition to Inelastic, you should have also the Capture, Fission, ThermalScattering, and Elastic folders.