2 KEV FILTERS OF QUASI-MONOCHROMATIC EPITHERMAL NEUTRONS

A simulation study of monochromatic beam filters based on selecting suitable materials for the production of quasi-monochromatic neutron beams in the energy range of 2 KeV are given. The simulation allows estimating the purity of the filtered neutron beam versus its intensity. Calculation shows that filters based on 54Sc can produce a quasi–monochromatic neutron beam at 2 KeV at low background. The main parameters of the suggested filtered quasi-monochromatic neutron beam were compared with those available in literature. For the same incident neutron flux, the present neutron filters are found to have higher intensity at low accompanying background than the others.