Hi,

I'm interested in processing thermal neutron scattering cross sections of ZrH material in ACE format by use of NJOY2016. Our phonon frequencies for both H in ZrH and Zr in ZrH, calculated by abinit software, are introduced to Leapr module of NJOY to process the S(alpha, beta) law.

In their paper :

https://www.oecd-nea.org/science/wpec/sg42/Files/Report_mattes2005.pdf

M. Mattes and J. Keinert say in pages 39-40 that ZrH should have a coherent elastic part of scattering cross section.

How could I obtain coherent elastic from NJOY2016 for Zr in ZrH to obtain a curve of total scattering cross section as presented on Fig 5.15 of the same paper?

Regards