Fig. 4 | Nature Communications

Fig. 4

From: Stand-off nuclear reactor monitoring with neutron detectors for safeguards and non-proliferation applications

Fig. 4

Detector sensitivity to local environment. a B10+ detector count rate at Location B, and simultaneous BCS detector count rate at Location A, versus time. b The same data from (a), demonstrating the correlation between the B10+ and BCS count rates. c An example of how the B10+ detector count rate varied with online refueling activities: (1) fuel rod flask parked on top of reactor, (2) fuel rod inserted into reactor core from flask at one rod location, followed by removing a fuel rod from reactor core into flask at another rod location, (3) flask moved away from top of reactor for a break, (4), flask moved back onto top of reactor, (5) fuel rod inserted into reactor core from flask at one rod location, followed by removing a fuel rod from reactor core into flask at another rod location, (6) flask moved away from top of reactor

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