Calibration of a Fast Neutron Time-of-Flight System

University essay from Lunds universitet/Kärnfysik; Lunds universitet/Fysiska institutionen

Abstract: Future experiments with thermal neutrons at neutron facilities may encounter fast neutrons as sources of background. Understanding fast neutron behavior on an event-by-event basis in a detector is important for these complementary thermal neutron experiments. One way to study fast neutron events is by performing a time-of-flight measurement. In this thesis, a calibration of a neutron time-of-flight spectrum using emissions from an Actinide/Beryllium source was performed. Neutron kinetic energies were determined using the neutron-tagging technique, where each fast neutron was correlated to a gamma-ray from the decay of the first excited state of Carbon. The results indicate the technique functions as expected.

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