Final Report for the Testing of the Y-12 Criticality Accident Alarm System Detectors at the Godiva IV Burst Reactor (IER-443)

A New Era of Nuclear Criticality Experiments: The First 10 Years of Godiva IV Operations at NCERC

“…THE FIRST 10 YEARS OF GODIVA IV OPERATIONS AT NCERC • GODA et alS73operability requirement under short-duration, high-radiation fields requires rather unique conditions that can only easily and reasonably be achieved by subjecting the detectors to radiation from a burst reactor. Tests were performed during the weeks of July 17, 2017, and May 14, 2018, that included the Y-12 National Security Complex CAAS and AWE Criticality Incident Detection System [42][43][44]. Confirmatory neutron and photon fluence measurements using various fielded dosimetry detectors similar to those used during the dose characterization measurements were also performed.The Y-12 detectors were placed, six in 2017 and five in 2018, all at 2-m distances from the Godiva IV core centerline.…”