Detailed Description
A neutron bomb is a fission-fusion thermonuclear weapon (hydrogen bomb) in which the burst of neutrons generated by a fusion reaction is intentionally allowed to escape the weapon, rather than being absorbed by its other components. The weapon's X-ray mirrors and radiation case, made of uranium or lead in a standard bomb, are instead made of chromium or nickel so that the neutrons can escape. The bombs also require amounts of tritium on the order of a few tens of grams.
The "usual" nuclear weapon yield—expressed as kT TNT equivalent—is not a measure of a neutron weapon's destructive power. It refers only to the energy released (mostly heat and blast), and does not express the lethal effect of neutron radiation on living organisms. Compared to a fission bomb with the identical explosive yield, a neutron bomb would emit about ten times the amount of neutron radiation. In a fission bomb, the radiation pulse energy is approximately 5% of the entire energy released; in the neutron bomb it would be closer to 50%. A neutron bomb releases a much greater number of neutrons than a fission bomb of the same explosive yield. Furthermore, these neutrons are of much higher energy (14 MeV) than those released during a fission reaction (1–2 MeV).
Read more about this topic: Neutron Bomb
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