Lowry
a) by accelerating the neutrons produced during nuclear fissionb) by slowing down the neutrons produced during nuclear fissionc) by absorbing the neutrons produced during nuclear fissiond) by releasing neutrons
Seven Trees
Yes, the heavy water is used as a "moderator" to slow down neutrons from one fission generation to the next. It happens that the neutron chain reaction is best served using slower neutrons that can fall into the next uranium (or other fissile nucleus). The neutrons that are produced in the fission process are just too fast and need to bounce off a light atom such as hydrogen to most efficiently transfer energy. The reason heavy water is so handy for this is that heavy water, since it contains a hydrogen isotope (deuterium) that already has a neutron, does not try to "capture" those fast moving neutrons and take them out of the chain reaction. So, while you want your neutrons to bounce off light atoms like billiard balls and give up a lot of energy with each hit, you don't want to lose any neutrons you don't have to by hitting regular hydrogen atoms in "light" water (H2O) that are much more hungry for neutrons and capture them, changing to deuterium but taking neutrons out of action. Heavy water is so effective in moderating neutrons without capturing them that you don't even have to enrich the uranium to get a critical mass when you use heavy water (D2O) as the moderator.
Fort Branch
B) by slowing down the neutrons produced during nuclear fissionbut as far as i know...its a coolant, which cools the enormous amount of heat released. one more thing, it can even be moderator.....lyk HEAVY WATER( D2O)
Caribou
By slowing down the neutrons so the neutrons go slow enough to hit another nucleus and keep the process going. If the neutrons go too fast, they will pass right through other atoms.
Patriot
Bheavy water is D2Oit is hydrogen with an extra neutron, If you need more help on nuclear sciences let me know
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