reactor power level
121Neutron poison — For information on biological effects of excessive ionizing radiation, see radiation poisoning. A neutron poison (also called a neutron absorber or a nuclear poison ) is a substance with a large neutron absorption cross section in applications,… …
122NRX — For the NRX series of nuclear thermal rocket designs, see NERVA. NRX was a heavy water moderated, light water cooled, nuclear research reactor at the Canadian Chalk River Laboratories, which came into operation in 1947 at a design power rating of …
123Void coefficient — In nuclear engineering, the void coefficient (more properly called void coefficient of reactivity ) is a number that can be used to estimate how much the reactivity of a nuclear reactor changes as voids (steam bubbles) form in the reactor… …
124Passive nuclear safety — describes a safety feature of a nuclear reactor that does not require operator action or electronic feedback in order to shut down safely in the event of a particular type of emergency (usually overheating resulting from a loss of coolant or loss …
125Xenon-135 — 135Xe is an isotope of xenon, and a fission product (yield 6.3333%) which is the most powerful known neutron absorbing nuclear poison and has a significant effect on nuclear reactor operation.Xe 135 effects on restartThe inability of a reactor to …
126Nuclear chain reaction — A possible nuclear fission chain reaction. 1. A uranium 235 atom absorbs a neutron, and fissions into two new atoms (fission fragments), releasing three new neutrons and a large amount of binding energy. 2. One of those neutrons is absorbed by an …
127Manhattan Project — This article is about the atomic bomb project. For other uses, see Manhattan Project (disambiguation). Manhattan District The Manhattan Project created the first nuclear bombs. The Trinity test …
128Atomic Energy of Canada Limited — Infobox Company company name = Atomic Energy of Canada Limited company company type = Crown Corporation foundation = 1952|f location = Mississauga, Ontario key people = Hugh MacDiarmid, President and CEO industry = Nuclear products = Nuclear… …
