Fig. 6-5 Power distribution monitor (PDM) for future pressurized water reactors (PWRs) with a position-sensitive fission counter as compared with the newest PDM

In the newest model PWRs, reactor power distribution in the direction of the core axis is measured by using four or six neutron sensors. The PDM System studied by JAERI monitors the continuous power distribution using one position-sensitive fission counter (PSFC).

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Persistent Quest - Research Activities 1996
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