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The moderator is used to slow down the neutrons present in the core of the reactor. Normally the neutrons produced as the nuclear fuel (e.g. uranium) is fissioned are travelling too fast to produce a sustained chain reaction. Some examples of moderators are cadmium, heavy water and graphite.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoA neutron moderator or graphite moderator turns fast neutrons into thermal neutrons that help sustain a fission reaction.
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What are the moderator used in a nuclear reactor with natural uranium?
The moderator used in nuclear reactors with natural uranium is generally the heavy water (D2O).
Do moderator in nuclear reactor slows down the neutrons emitted during fission?
Yes, it is the main moderator function in what is called "thermal nuclear reactors"
Can you use tritium water as moderator in nuclear reactor?
Yes, but it would usually be too expensive as tritium must be made in a reactor from lithium.
Which are needed in fission reactor?
nuclear fuelcoolantneutron moderator (if needed)control elementsshieldingmeasurement instrumentationemergency systemssupport structures
Why moderator is not used in case of fast breeder reactor?
Moderator is not used in case of fast breeder reactor because there is no need to slow down neutron energy. Nuclear fission takes place at high energy of neutrons.
Primary function of moderator in nuclear reactor?
What is the primary function of a Moderator in a nuclear reactor
Slows down neutrons in a nuclear reactor?
moderator
Which is used as moderator in nuclear reactor?
Most often, light water (H2O) is used as a moderator in a nuclear reactor. Sometimes, heavy water (D2O), or graphite is used.
What is a bare reactor?
It is a nuclear reactor without reflector, consisting only from fuel and moderator.
Why does the core of the reactor have a moderator?
The core of the reactor contains the nuclear fuel. Having a moderator in place within the core ensures that the nuclear fuel is processed at an accurate time duration. This can prevent serious problems from occurring within the entire nuclear reactor.
What are the moderator used in a nuclear reactor with natural uranium?
The moderator used in nuclear reactors with natural uranium is generally the heavy water (D2O).
Can a reactor without moderator is present?
Yes, they are fast nuclear reactors
How is the rate of the fission in a nuclear reactor controlled?
By the control rods and by the moderator.
Do moderator in nuclear reactor slows down the neutrons emitted during fission?
Yes, it is the main moderator function in what is called "thermal nuclear reactors"
Does a breeder nuclear reactor use moderator?
Thermal Breeder Reactors use moderators but Fast Breeder Reactors don't use moderator.
What is in the core of a nuclear reactor?
The core of the nuclear reactor includes:nuclear fuel elements (composed of the fuel meat covered with cladding)reactor coolantreactor moderator (for thermal reactors)control elementsmeasuring instrumentsstructural and support structures
Can you use tritium water as moderator in nuclear reactor?
Yes, but it would usually be too expensive as tritium must be made in a reactor from lithium.
