The '/data/energy' in NXSPE files

Hi all,

I wonder if the energy data stored in NXSPE files(’/data/energy’, not the fixed_energy) is the neutron energy loss(i.e. = E_i - E_f) or the energy of the neutrons arriving at the detectors(i.e. = E_f ).

Any help would be much appreciated!



Hi Yang,

yes, it’s the neutron energy transfer (E_i-E_f) not the neutron energy at the detectors, and follows the usual convention that positive values indicate neutron energy loss and negative values indicate the neutron energy gain.

Hope this helps,


Duc, thank you so much!