Speaker
Description
Rare Isotope Accelerator complex for On-line experiments (RAON) is a heavy-ion accelerator facility designed to provide stable and rare isotope beams in Korea. Nuclear Data Production System (NDPS) is one of the experimental systems at RAON and provides neutron beams for nuclear data measurements and other applications. At NDPS, an Ar-40 ion beam with an energy of about 18 MeV/u is delivered onto graphite or tantalum targets to produce neutrons. The activation foil method was used to measure the neutron fluence and the energy spectrum from the targets. Several activation foils, sensitive to different energy ranges, were used to reconstruct the neutron energy distributions. The foils were placed at angles from 0 to 90 degrees to obtain the angular distribution of the neutron fluence. In this presentation, the energy and angular distributions of neutron beams generated by the Ar-40 ion beams and each target will be presented.
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