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What causes a fission reaction to begin?

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Eliseo Weimann

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Q: What causes a fission reaction to begin?
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For a sustainable fission reaction each fission must produce exactly additional fission reaction(s).?

A stable nuclear fission reaction will be sustained if every fission produces one additional fission reaction.


What is a chemical chain reactionA chemical reaction that causes the next one.(for geoscience Nuclear fission and fusion)?

Share A chemical reaction that causes the next one


If For a sustainable fission reaction each fission must produce exactly how many additional fission reaction(s).?

To sustain a fission chain reaction, each fission reaction must result in one more fission reaction. And that one should result in one more, and so on.


Why you use moderators in a nuclear reaction chamber during a fission chain reaction?

A moderator in a fission chain reaction is a system (usually water) that slows neutrons down (decreases their energy) to the point where they can interact with fissile material, causing the fission reaction to be self sustaining. This is necessary because, without the moderator, the neutrons emitted from fission have too much energy to cause subsequent fission. The design of the moderator is such that it provides automatic control of the reaction. As it heats up, the moderation effect decreases, causing the reaction to decrease. Conversely, as it cools down, the moderation effect increases, causing the reaction to increase. In the event that the moderator fails, such as when a depressurization event causes the water to flash to steam, the loss of moderation causes the fission reaction to stop.


What term describes the reaction process in a fission reaction?

another name for nuclear fission is: E=MC squared


When was fission reaction invented?

The first time a fission chain reaction was produced was in 1942


What is the role of control rods in a fission reaction?

what is the role of control rods in a fission reaction


What are the disadvantages of nuclear fission and fusion?

For fusion, the main disadvantage is that nobody has been able to make it work. However it does have promise and if it can be developed it will not produce the dangerous fission products that fission does. For fission, see reply to question 'What are the disadvantages of nuclear fission power'


Is reaction on sun a fusion or fission?

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Is the bomb little boy a fission or fusion reaction?

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What type of reaction happens in a nuclear power plant?

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What is splitting of atomic nuclei?

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