Subcritical reactivity measurement method

Details Subcritical reactivity measurement method Subcritical reactivity measurement method

2011-02-22

2011-02-22

Palabrica, Rick (Department: 3663)

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

Flux monitoring

C376S245000, C376S255000

Reexamination Certificate

active

07894565

ABSTRACT:
A method of determining the spatially corrected inverse count ratio (SCICR) used to determine reactor criticality, which subtracts a background noise signal from the source range detector output. The method monitors the source range detector signal at two different core temperature levels during a transient portion of the detector output as the power output of the reactor is increased in the source range. This information is employed to analytically determine the background noise signal, which is then subtracted from the detector outputs to obtain the SCICR reactivity measurement.

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