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Are there more fast breeder or thermal nuclear reactors?
Most nuclear reactors are thermal-neutron reactors. A few fast breeder reactors have been built, but not many.
How much temperature can be controlled by liquid sodium in nuclear reactors?
Liquid sodium has been used as a coolant in fast reactors, because it does not slow down and absorb fast neutrons. It does not control the nuclear reaction directly, for that variable neutron absorbers are required.
Why fast neutrons are not captured by nucleus?
The nucleus is very small; if it were the size of a golf ball the outer electrons would be about as far away as the height of the empire state building. If a neutron was moving very fast it probably wouldn't hit a nucleus. When , occasionally, a neutron does hit a nucleus, it might start nuclear fission- especially when the nucleus is heavy like Uranium 235 (U-235). So, to sum it up, most neutrons are not captured by a nucleus because they are both so small relative to the space that they are in, but sometimes a neutron will hit a nucleus.
What has the author Karl Wirtz written?
Karl Wirtz has written: 'Lectures on fast reactors' -- subject(s): Fast reactors
Is power reactor a thermal reactor?
All power reactors are thermal reactors except few ones that are fast nuclear reactors.
Name the element when uranium captures a fast neutron?
The element is determined by the number of protons. When uranium captures a fast neutron it is still uranium but has an increased atomic mass. Fast neutron capture may encourage a further reaction but it depends on which uranium isotope you start with as to the increase in probability some further reaction will occur and which reaction that might be.
What will happen if fast-moving neutron strikes with uranium?
When U-238 absorbs a fast neutron it forms plutonium-239
What is nuclear reactors?
An assembly of fissile fuel (U-235 or PU-239) arranged in a geometric array. The assembly can be made to go critical such that a chain reaction starts which builds up a neutron flux inside the assembly. The chain reaction is controlled at a steady level using neutron absorbing control rods.The nuclear reactor can classified under:a thermal nuclear reactor, where the majority of fissions are caused by slow neutrons. In these reactors, the fast neutrons produced by fissions are slowed down with a moderator which can be graphite, heavy water or light water, anda fast nuclear reactor where the majority of fissions are caused by fast neutrons
What can we design to stop industrial pollution?
Fast neutron nuclear reactors, among other new Nuclear technologies. Nuclear power is the cleanest most efficient power source. Reducing burning of fossil fuels will significantly reduce pollution in the atmosphere.
What has the author Ronald Geoffrey Palmer written?
Ronald Geoffrey Palmer has written: 'Fast reactors' -- subject(s): Nuclear reactors
Why fission cannot take place with fast neutron?
In order to cause an atomic nucleus to become unstable so that it will undergo fission, you have to add a neutron. If a slow neutron collides with an atomic nucleus, it will be absorbed into the nucleus and become part of it. The nuclear attraction of the nucleus is strong enough to grab a slow neutron. But a fast neutron cannot be captured because it has too much kinetic energy. The attraction of the nucleus is not enough to stop the motion of a fast neutron. Even if a fast neutron makes a direct hit on an atomic nucleus, it is just going to bounce off.
Can a reactor without moderator is present?
Yes, they are fast nuclear reactors
