If you mean the first person who actually demonstrated a nuclear fission reaction, it was Enrico Fermi. The first pile was built using graphite blocks as the moderator, at the University of Chicago, and went critical on Dec 2 1942, under Fermi's control.
Previous to this, many physicists had contributed to the theories about fission, including Fermi himself, but it had to be demonstrated. This first Chicago Pile-1 was the forerunner of the Hanford piles which were much larger and built to produce plutonium for the Manhattan Project.
Fermi was born in Italy, but emigrated to the US in 1938, largely because his wife was Jewish and he was afraid for her in the Fascist era. He became a US citizen in 1944.
A stable nuclear fission reaction will be sustained if every fission produces one additional fission reaction.
In a chain reaction, each fission reaction must produce at least one additional fission reaction to sustain the reaction. This is necessary to achieve a self-sustaining nuclear reaction where each fission event leads to more fission events, releasing energy in the process. Without this multiplication of fission reactions, the chain reaction would not be able to continue and sustain itself.
For a chain reaction to occur, each fission must produce at least one more fission reaction. This leads to a self-sustaining reaction where each fission event triggers more fission events, resulting in a continuous release of energy.
another name for nuclear fission is: E=MC squared
In a nuclear fission reaction, the energy comes from the splitting of atomic nuclei.
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.
A stable nuclear fission reaction will be sustained if every fission produces one additional fission reaction.
The first time a fission chain reaction was produced was in 1942
fission..sup
In a chain reaction, each fission reaction must produce at least one additional fission reaction to sustain the reaction. This is necessary to achieve a self-sustaining nuclear reaction where each fission event leads to more fission events, releasing energy in the process. Without this multiplication of fission reactions, the chain reaction would not be able to continue and sustain itself.
For a chain reaction to occur, each fission must produce at least one more fission reaction. This leads to a self-sustaining reaction where each fission event triggers more fission events, resulting in a continuous release of energy.
another name for nuclear fission is: E=MC squared
In a nuclear fission reaction, the energy comes from the splitting of atomic nuclei.
Atomic fission bomb.
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.
Neutrons released during a fission reaction trigger other fission reactions.
In a nuclear fission reaction, a freely moving neutron undergoes neutron capture and initiates the nuclear fission of a fuel atom.