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Christmas Light
’Twas the night before Christmas when all through the house
No electrons were flowing through even my mouse.
All devices were plugged by the chimney with care
With the hope that St. Nikola Tesla would share.
David J. Diamond, Hsiang-Shou Cheng
Nuclear Technology | Volume 46 | Number 3 | December 1979 | Pages 493-499
Technical Paper | Nuclear Power Reactor Safety / Reactor | doi.org/10.13182/NT79-A32357
Articles are hosted by Taylor and Francis Online.
The effect of steam voids and control rods on the Doppler feedback and of bypass voids on the total void feedback has been calculated for a gadolinia-shimmed boiling water reactor. Calculations were done using a point model, i.e., feedback was expressed in terms of reactivity coefficients determined for individual four-bundle configurations and then appropriately combined to yield reactor results. For overpower transients, the inclusion of the void effect will make the Doppler feedback stronger. The effect of control rods is to reduce Doppler feedback. For overpressurization transients, the inclusion of the effect of bypass void will increase the reactivity due to void collapse.