Where are the location of ACE-formatted files and the xsdir dictionary file, fluka/data?
how to assign ACE-formatted files full filename or ZAid identifier with ACE-formatted files? this can be finished in the LOW-PWXS card through Flair?
According to the manual, the location of ACE-formatted files and the xsdir dictionary file should be in {FlukaDir}/data/neutron/ace directory, but the S(α,β) identifier can not be input through flair(the latest version), and directly using the name of ACE-formatted files does not work, the results are same as not using S(α,β) data.
Hello @Newconcept_1979,
Due to huge size, the neutron data are provided as separated packages to download and can be found on the fluka.cern website: FLUKA libraries for low-energy neutron pointwise interaction cross sections | The official CERN FLUKA website
Once downloaded, they have to be placed in the correct folder {FlukaDir}/data/neutron/{library}
As you said, the data has to be loaded using the LOW-PWXS card.
For more details about how to use the librairies, I invite you to try the examples in the following ressources:
Please let us know if you need more.
Dear @Newconcept_1979
you have two ways using the LOW-PWXS card to bind the TSL from ACE to a FLUKA material.
For both you need to create a subdirectory under as you already mention and place the files there
- In what(2) you can provide the filename of the data you want to use. However the total length of the filename (including the extension) cannot exceed the 10 characters. otherwise you can use the FREE format of FLUKA (up to 22 characters).
- You can create an xsdir file in the ace subdir to be used as a catalogue referring to the proper filename.
Please remember that only point-wise ACE files containing TSL data can be used. FLUKA will not load the group-wise ACE files.
You can verify if the data are properly loaded in the .out of fluka there is a section called
Low energy neutron Point Wise materials
where you can verify if the ACE file is properly loaded