Abstract

The ISU AGN-201 research reactor has been in operation since October 18th, 1967 and has served as an invaluable research and education tool for the university. Since then, maintaining the 1950’s vacuum tube based control console and acquiring replacement components has become increasingly difficult. To address this issue a new console project was started in the late 1990s. The initial attempt proved unsuccessful due to an overly complex design and a lack of repairability of one of a kind multi-layered circuit board. This paper focuses on rebuilding the safety circuit with solid state electronics for simpler operation and maintenance, as well as the necessary regulation justification documentation for switching to operations with the new console.

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