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Negative-Reactivity Measurements

William S. Hogan

Nuclear Science and Engineering

Volume 8 / Number 6 / December 1960 / Pages 518-522


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Negative-reactivity measurements are frequently made by the rod-drop and source-jerk techniques. Analysis of the data from such experiments by the usual methods requires measurement of the flux-time curve during a transient. Two alternative methods of obtaining negative reactivities are presented here. Neither of these methods requires measurement of a flux transient. Experimental results using these methods are given.

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