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If the last fission stage is omitted, by replacing the uranium tamper with one made of lead, for example, the overall explosive force is reduced by approximately half but the amount of fallout is relatively low. The neutron bomb is a hydrogen bomb with an intentionally thin tamper, allowing as many of the fast fusion neutrons as possible to escape.
Edward Teller, often referred to as the "father of the hydrogen bomb" Fusion reactions do not create fission products, and thus contribute far less to the creation of nuclear fallout than fission reactions, but because all thermonuclear weapons contain at least one fission stage, and many high-yield thermonuclear devices have a final fission ...
A pure fusion weapon is a hypothetical hydrogen bomb design that does not need a fission "primary" explosive to ignite the fusion of deuterium and tritium, two heavy isotopes of hydrogen used in fission-fusion thermonuclear weapons. Such a weapon would require no fissile material and would therefore be much easier to develop in secret than ...
Developed between 1956 and 1961 as the Soviet Union engaged in a nuclear arms race with the United States, the Tsar Bomba - the King of Bombs - was the largest hydrogen bomb ever and was claimed ...
[26] [27] In January 2016, North Korea claimed to have successfully tested a hydrogen bomb, [28] but only a magnitude 5.1 seismic event was detected at the time of the test, [29] a similar magnitude to the 2013 test of a 6–9 kt atomic bomb. Those seismic recordings have scientists worldwide doubting North Korea's claim that a hydrogen bomb ...
The initial three-stage design of Tsar Bomba was capable of yielding approximately 100 Mt (approximately 3,000 times the power of the Hiroshima (15 kt) and Nagasaki (21 kt) bombs, combined); [39] however, it was thought that this would have resulted in too much nuclear fallout, and the aircraft delivering the bomb would not have had enough time ...
Fallout can also refer to nuclear accidents, although a nuclear reactor does not explode like a nuclear weapon. The isotopic signature of bomb fallout is very different from the fallout from a serious power reactor accident (such as Chernobyl or Fukushima). The key differences are in volatility and half-life.
During World War II, Japan launched thousands of hydrogen balloons carrying bombs, and hundreds ended up in the U.S. and Canada. Most were ineffective, but one was lethal.