Design of sub-keV scale neutron calibrations setup using Fe and Sc filter

We will discuss recent progress in making sub-keV nuclear recoil calibrations practical in a university lab environment. First, we will describe a method to moderate and then filter neutrons from a pulsed Deuterium-Tritium (DT) generator, enabling a pulsed keV-scale neutron source. We will discuss the design process that involves successive stages of effective moderation of neutrons for filtering and shielding of the unwanted neutrons for human safety. We will also describe work towards a large-area and affordable backing detector array employing neutron capture. The results of a prototype backing detector that has been built and characterized will be discussed.