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Is a chain reaction possible in a substance that emit no neutrons when it fission?
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∙ 10y ago
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Wiki User
∙ 10y ago
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Which describes what happens during a chain reaction?
Neutrons released during a fission reaction trigger other fission reactions.
How many neutrons are produced during a typical uranium fission reaction and what is the role of these neutrons in a nuclear chain reaction?
A typical uranium fission event produces 2 to 3 neutrons. These neutrons are moderated (slowed down) and go on to initiate the fission of more uranium. On average, in a controlled reaction that is maintained at normal criticality (KEffective = 1), each fission creates exactly one neutron that is used to produce another fission.
What makes a fission reaction possible is that certain atoms are?
Fissile, that is they will split on capturing a neutron, releasing energy. Also if the fission releases more neutrons, as with U-235 and Pu-239, this gives the possibility of a chain reaction.
What is fissile nucleus?
a thermal slow neutrons that will fission by a chain reaction of the nutrons.
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.
What characteristics of a fission reaction makes a chain reaction possible?
The excess of neutrons produced.
Describe a characteristic of a fissionable substance that is essential for a chain-reaction to sustain itself?
The fission process is sustained by neutrons. A neutron entering a nucleus and causing fission must be replaced in order to cause the next fission, and so on. So the fissionable substance must emit more neutrons when fission occurs, and enough of them so that despite some being absorbed by the moderator and some leaking from the reactor boundary, there is still enough to maintain the chain reaction. Uranium 235 emits on average about 2.5 neutrons per fission (you might say what is half a neutron, but this is explained by the fact that fissions have a range of possible results, with different numbers of neutrons emitted, and the average is 2.5).
In a nuclear fission reaction which component both triggers the reaction and is produced by the reaction?
neutrons
Which describes what happens during a chain reaction?
Neutrons released during a fission reaction trigger other fission reactions.
How many neutrons are produced during a typical uranium fission reaction and what is the role of these neutrons in a nuclear chain reaction?
A typical uranium fission event produces 2 to 3 neutrons. These neutrons are moderated (slowed down) and go on to initiate the fission of more uranium. On average, in a controlled reaction that is maintained at normal criticality (KEffective = 1), each fission creates exactly one neutron that is used to produce another fission.
What makes a fission reaction possible is that certain atoms are?
Fissile, that is they will split on capturing a neutron, releasing energy. Also if the fission releases more neutrons, as with U-235 and Pu-239, this gives the possibility of a chain reaction.
Neutrons released in a fission reaction can strike other nuclei and cause?
A chain reaction
The process in which each split atom gives up neutrons?
The act of an atom splitting is called nuclear fission. In nuclear fission where we see neutrons emerge with fission fragments, and we then see those neutrons initiate other fission reactions is called a nuclear fission chain reaction.
What is fissile?
a thermal slow neutrons that will fission by a chain reaction of the nutrons.
What is fissile nucleus?
a thermal slow neutrons that will fission by a chain reaction of the nutrons.
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.
Where are Protons and neutrons found in a atom bomb?
Protons and Neutrons in atomb bombs are found in the nuclear fission reaction.
