![]() ![]() These X-rays flood the void (the "radiation channel" often filled with polystyrene foam) between the primary and secondary assemblies placed within an enclosure called a radiation case, which confines the X-ray energy and resists its outward pressure. Its temperature soars past approximately 100 million kelvin, causing it to glow intensely with thermal X-rays. Ī fusion explosion begins with the detonation of the fission primary stage. For this reason, thermonuclear weapons are often colloquially called hydrogen bombs or H-bombs. ) and a separate nuclear fusion secondary stage containing thermonuclear fuel: the heavy hydrogen isotopes deuterium and tritium, or in modern weapons lithium deuteride. Modern fusion weapons consist essentially of two main components: a nuclear fission primary stage (fueled by 235 The first full-scale thermonuclear test was carried out by the United States in 1952 the concept has since been employed by most of the world's nuclear powers in the design of their weapons. Characteristics of nuclear fusion reactions make possible the use of non-fissile depleted uranium as the weapon's main fuel, thus allowing more efficient use of scarce fissile material such as uranium-235 ( 235 Its greater sophistication affords it vastly greater destructive power than first-generation nuclear bombs, a more compact size, a lower mass, or a combination of these benefits. ![]() ![]() Radiation case (confines thermal X-rays by reflection)Ī thermonuclear weapon, fusion weapon or hydrogen bomb ( H bomb) is a second-generation nuclear weapon design.Radiation channel filled with polystyrene foam.Tritium "boost" gas (blue) within plutonium or uranium hollow core.Uranium-238 ("tamper") lined with beryllium reflector. ![]()
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