A possible design of a thermonuclear warhead is shown here. The fission device explodes and produces hydrogen isotopes from the lithium deuteride. The isotopes then fuse, creating a thermonuclear explosion that fissions the U-238 and increases the warhead's power.
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World Book diagram by J. Harlan Hunt. Adapted from artwork in HowardMorland's <IT>The Secret That Exploded,<EIT> Random House, 1981.</P>
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