wikipedia Fast fission is fission that occurs when a heavy atom absorbs a high-energy neutron, called a fast neutron, and splits.
Fast fission — is fission that occurs when a heavy atom absorbs a high energy neutron, called a fast neutron, and splits.
Fast neutron: A neutron that, after being released during fission, has lost very little energy by colliding with other neutrons.
When a fast neutron collides with a light nucleus, it loses a large fraction of its energy.
In orders of magnitude (speed), the speed of a fast neutron is 10000 km/s
This 600-MW breeder reactor (BN-600) in Russia has been operating since 1980.
The BN-600 fast breeder reactor has been operational since 1980.
On average a neutron loses half of its kinetic energy per collision with hydrogen.
Then, after two beta decays 239Pu is formed – a fissile element that in the breeders serves as a fuel (and then we talk about uranium-plutonium cycle).
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Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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