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How Nuclear Bombs Work
送交者: x-file 2019月01月22日18:19:37 于 [世界游戏论坛] 发送悄悄话
回  答: 傻B x-file,证据来了 道友 于 2019-01-22 09:58:15

To understand this bomb design, imagine that within a bomb casing you have an implosion fission bomb and a cylinder casing of uranium-238 (tamper). Within the tamper is the lithium deuteride (fuel) and a hollow rod of plutonium-239 in the center of the cylinder. Separating the cylinder from the implosion bomb is a shield of uranium-238 and plastic foam that fills the remaining spaces in the bomb casing. Detonation of the bomb causes the following sequence of events:

  1. The fission bomb implodes, giving off X-rays.

  2. These X-rays heat the interior of the bomb and the tamper; the shield prevents premature detonation of the fuel.

  3. The heat causes the tamper to expand and burn away, exerting pressure inward against the lithium deuterate.

  4. The lithium deuterate is squeezed by about 30-fold.

  5. The compression shock waves initiate fission in the plutonium rod.

  6. The fissioning rod gives off radiation, heat and neutrons.

  7. The neutrons go into the lithium deuterate, combine with the lithium and make tritium.

  8. The combination of high temperature and pressure are sufficient for tritium-deuterium and deuterium-deuterium fusion reactions to occur, producing more heat, radiation and neutrons.

  9. The neutrons from the fusion reactions induce fission in the uranium-238 pieces from the tamper and shield.

  10. Fission of the tamper and shield pieces produce even more radiation and heat.

  11. The bomb explodes.

https://science.howstuffworks.com/nuclear-bomb6.htm

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