Search results
Results From The WOW.Com Content Network
Thermal radiation—effective ground range GR / km: Fourth degree burns, Conflagration: 0.5 2.0 10 30 Third degree burns: 0.6 2.5 12 38 Second degree burns: 0.8 3.2 15 44 First degree burns: 1.1 4.2 19 53 Effects of instant nuclear radiation—effective slant range 1 SR / km: Lethal 2 total dose (neutrons and gamma rays) 0.8 1.4 2.3 4.7
All nuclear explosions produce fission products, un-fissioned nuclear material, and weapon residues vaporized by the heat of the fireball. These materials are limited to the original mass of the device, but include radioisotopes with long lives. [3] When the nuclear fireball does not reach the ground, this is the only fallout produced.
All nuclear weapons up to about 10 kilotons in yield have prompt neutron radiation [2] as their furthest-reaching lethal component. For standard weapons above about 10 kilotons of yield, the lethal blast and thermal effects radius begins to exceed the lethal ionizing radiation radius.
The first three arrive almost simultaneously, since they travel at light-speed, though thermal radiation can last several seconds and inflict severe burns miles from a blast site.
The medical effects of the atomic bomb upon humans can be put into the four categories below, with the effects of larger thermonuclear weapons producing blast and thermal effects so large that there would be a negligible number of survivors close enough to the center of the blast who would experience prompt/acute radiation effects, which were observed after the 16 kiloton yield Hiroshima bomb ...
A nuclear explosion is an explosion that occurs as a result of the rapid release of energy from a high-speed nuclear reaction.The driving reaction may be nuclear fission or nuclear fusion or a multi-stage cascading combination of the two, though to date all fusion-based weapons have used a fission device to initiate fusion, and a pure fusion weapon remains a hypothetical device.
Neutron radiation is a form of ionizing radiation that presents as free neutrons.Typical phenomena are nuclear fission or nuclear fusion causing the release of free neutrons, which then react with nuclei of other atoms to form new nuclides—which, in turn, may trigger further neutron radiation.
Nuclear scientists and engineers often need to know where neutrons are in an apparatus, in what direction they are going, and how quickly they are moving. It is commonly used to determine the behavior of nuclear reactor cores and experimental or industrial neutron beams. Neutron transport is a type of radiative transport.