Abstract
Micro-Pocket Fission Detectors (MPFDs) can be used to monitor a neutron flux within the core of a nuclear reactor. When assembled into an array, MPFDs can be used to simultaneously monitor the neutron flux at multiple locations within the reactor. One permutation of the MPFD is designed to be deployed into an iron wire flux port, typical for most research and commercial reactors. A single 5-node MPFD array was fabricated at deployed into a dry flux port within the central thimble of the Kansas State University TRIGA Mk. II research nuclear reactor. The sensitivity of each MPFD node at operating voltages of +50V, +100V, and +200V was observed and an optimal operating voltage of +100V was identified. No cross-talk was observed between instrument channels during real-time neutron flux measurement. Linear power tracking and real-time response to reactor power were both observed between 10kWth and 100kWth reactor power.
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