nuclear explosion

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first thermonuclear weapon

Know how various monitoring systems help the Test Ban Preparatory Commission to detect any nuclear explosion that takes place anywhere on, above, or inside the Earth

nuclear explosion

physics

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first thermonuclear weapon — first thermonuclear weapon The explosion from the first thermonuclear weapon (hydrogen bomb), code-named Mike, which was detonated at Enewetak atoll in the Marshall Islands, November 1, 1952. The photograph was taken at an altitude of 3,600 metres (12,000 feet) 80 km (50 miles) from the detonation site.

A nuclear explosion is the result of an uncontrolled nuclear reaction, either fission or fusion, that releases a massive amount of energy. Nuclear fission involves splitting a heavy atomic nucleus, like uranium or plutonium, into lighter nuclei. This process releases energy and neutrons, which can trigger further fissions, creating a chain reaction. If this chain reaction is uncontrolled, it leads to an explosion of immense destructive power, as seen in atomic bombs.123

Nuclear fusion, on the other hand, involves combining light atomic nuclei to form heavier ones, also releasing substantial energy. This process powers thermonuclear weapons, or hydrogen bombs. The initial moments of a nuclear explosion produce intense heat, light, and radiation, including gamma rays and neutrons, which are harmful to living organisms.145

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warning system
Detection of nuclear explosions
In 1963 a treaty banning nuclear weapon tests in the atmosphere, in outer space, and underwater was signed. Each signatory nation was to provide monitoring. A direct consequence was the development and construction of a wide variety of devices to monitor nuclear explosions.
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In 1963 a treaty banning nuclear weapon tests in the atmosphere, in outer space, and underwater was signed. Each signatory nation was to provide monitoring. A direct consequence was the development and construction of a wide variety of devices to monitor nuclear explosions.
Read More

infrasonics
Underground nuclear explosions also produce P-waves, allowing them to be monitored from any point in the world if they are of sufficient intensity. The development of extremely sensitive detectors to monitor such explosions has contributed to the maintenance of the Nuclear Test-Ban Treaty, which was signed…
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Underground nuclear explosions also produce P-waves, allowing them to be monitored from any point in the world if they are of sufficient intensity. The development of extremely sensitive detectors to monitor such explosions has contributed to the maintenance of the Nuclear Test-Ban Treaty, which was signed…
Read More

transuranium element
Synthesis of transuranium elements
…elements are also produced in nuclear explosions. Typically, in such events, a uranium target is bombarded by a high number of fast (high-energy) neutrons for a small fraction of a second, a process known as rapid-neutron capture, or the r-process (in contrast to the slow-neutron capture, or s-process, described above).…
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…elements are also produced in nuclear explosions. Typically, in such events, a uranium target is bombarded by a high number of fast (high-energy) neutrons for a small fraction of a second, a process known as rapid-neutron capture, or the r-process (in contrast to the slow-neutron capture, or s-process, described above).…
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nuclear fission
Fission chain reactions and their control
^… second) to produce a devastating explosion. If one kilogram of uranium-235 were to fission, the energy released would be equivalent to the explosion of 20,000 tons of the chemical explosive trinitrotoluene (TNT). In a controlled nuclear reactor, k is kept equal to unity for steady-state operation. A practical reactor, however,…
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^… second) to produce a devastating explosion. If one kilogram of uranium-235 were to fission, the energy released would be equivalent to the explosion of 20,000 tons of the chemical explosive trinitrotoluene (TNT). In a controlled nuclear reactor, k is kept equal to unity for steady-state operation. A practical reactor, however,…
Read More

radioactivity
Occurrence of radioactivity
Nuclear explosions since 1945 have injected additional radioactivities into the environment, consisting of both nuclear fission products and secondary products formed by the action of neutrons from nuclear weapons on surrounding matter.
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Nuclear explosions since 1945 have injected additional radioactivities into the environment, consisting of both nuclear fission products and secondary products formed by the action of neutrons from nuclear weapons on surrounding matter.
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Vela
…developed to detect radiation from nuclear explosions in Earth’s atmosphere. Launched from 1963 to 1970, the Vela satellites were supposed to make certain that no countries violated the 1963 international treaty banning the testing of nuclear weapons on the ground or in the atmosphere. Although their primary function was military…
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…developed to detect radiation from nuclear explosions in Earth’s atmosphere. Launched from 1963 to 1970, the Vela satellites were supposed to make certain that no countries violated the 1963 international treaty banning the testing of nuclear weapons on the ground or in the atmosphere. Although their primary function was military…
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