0
A fission chain reaction can be controlled by using materials that will?
Wiki User
∙ 13y ago
Absorb neutrons. Examples are boron and cadmium
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How is fission inside a powerplant controlled?
The fission is controlled by inserting rods made of a material that absorbs the neutrons. This keeps the reaction from continuing, or slows the chain reaction.
Can the chain reaction of nuclear fission be stopped or controlled?
The chain reaction can be controlled, and it can be stopped. It is controlled in a nuclear power plant, and it is stopped when the plant shuts down, as it does periodically for refueling.
What particle is used to start nuclear fission?
In actuality, a spontaneous fission event begins a nuclear chain reaction. It kick starts a nuclear chain reaction. And a neutron from that fission will initiate another fission to continue and rev up that nuclear chain reaction.
How is a chain reactor controlled?
Since the continued chain reaction of a nuclear fission reactor depends upon at least one neutron from each fission being absorbed by another fissionable nucleus, the reaction can be controlled by using control rods of material which absorbs neutrons. Cadmium and boron are strong neutron absorbers and are the most common materials used in control rods. A typical neutron absorption reaction in boron is In the operation of a nuclear reactor, fuel assemblies are put into place and then the control rods are slowly lifted until a chain reaction can just be sustained. As the reaction proceeds, the number of uranium-235 nuclei decreases and fission by- products which absorb neutrons build up. To keep the chain reaction going, the control rods must be withdrawn further. At some point, the chain reaction cannot be maintained and the fuel must be replenished
What is it called when nuclear fission is repeated?
It is called nuclear chain fission reaction.
How is fission inside a powerplant controlled?
The fission is controlled by inserting rods made of a material that absorbs the neutrons. This keeps the reaction from continuing, or slows the chain reaction.
Can the chain reaction of nuclear fission be stopped or controlled?
The chain reaction can be controlled, and it can be stopped. It is controlled in a nuclear power plant, and it is stopped when the plant shuts down, as it does periodically for refueling.
What is the meaning of nuclear reactor?
It is a device where a controlled nuclear fission chain reaction occurs.
What is meant by nuclear reactor?
It is a device where a controlled nuclear fission chain reaction occurs.
Which of the following is the name given to a situation in which one fission reaction innstigates exactly one more fission reaction?
A runaway chain reaction.It is called super criticality, with KEffective > 1.When one fission reaction instigates more than one or more fission reactions it is called a Chain Reaction.KEffective is the neutron multiplication factor which is an indication of whether a reaction is stable (=1), increasing (>1), or decreasing (
When was fission reaction invented?
The first time a fission chain reaction was produced was in 1942
What term describes the reaction process in a fission reaction?
another name for nuclear fission is: E=MC squared
What particle is used to start nuclear fission?
In actuality, a spontaneous fission event begins a nuclear chain reaction. It kick starts a nuclear chain reaction. And a neutron from that fission will initiate another fission to continue and rev up that nuclear chain reaction.
How is a chain reactor controlled?
Since the continued chain reaction of a nuclear fission reactor depends upon at least one neutron from each fission being absorbed by another fissionable nucleus, the reaction can be controlled by using control rods of material which absorbs neutrons. Cadmium and boron are strong neutron absorbers and are the most common materials used in control rods. A typical neutron absorption reaction in boron is In the operation of a nuclear reactor, fuel assemblies are put into place and then the control rods are slowly lifted until a chain reaction can just be sustained. As the reaction proceeds, the number of uranium-235 nuclei decreases and fission by- products which absorb neutrons build up. To keep the chain reaction going, the control rods must be withdrawn further. At some point, the chain reaction cannot be maintained and the fuel must be replenished
does nuclear fission produce energy?
A controlled nuclear chain reaction produces heat, driving steam turbines to produce energy.
Does a chain reaction involve fission?
Yes, a chain reaction is all fission, just out-of-control fission. Usually, fission creates 2 neutrons per decay, but it is controlled by the fact that lots of neutrons get absorbed by U-238, which doesn't fission, unlike U-235, which does, and by the control rods, which also absorb lots of neutrons. But if these fail to contain the outbreak of neutrons, and the fail safes (which usually just drop the control rods totally into the reactor, stopping any chain reaction) fail, then an exponentially accelerating chain fission reaction can start, and once it starts, it's pretty much impossible to stop.
How is a chain reaction in a nuclear reactor controlled?
Nuclear reactors contain rods made of materials which will absorb neutrons. This reduced the cascade of neutrons which are responsible for the chain reaction.
