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fission bomb |
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There, technicians trained in handling nuclear materials would add the tritium or deuterium composites that turn a plain old fission bomb into a massive thermonuclear fusion bomb. Typically, two subcritical masses of uranium are kept apart until just before detonation; the size of a fission bomb is thus limited by the need, for safety's sake, to keep the quantity of uranium subcritical prior to detonation. |
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