WebBasic two-stage design. Teller-Ulam bomb design. A typical thermonuclear warhead may be constructed according to a two-stage design, featuring a fission or boosted-fission primary (also called the trigger) and a physically separate component called the secondary. Both primary and secondary are contained within an outer metal case. Gun-type fission weapons are fission-based nuclear weapons whose design assembles their fissile material into a supercritical mass by the use of the "gun" method: shooting one piece of sub-critical material into another. Although this is sometimes pictured as two sub-critical hemispheres driven … See more The "gun" method is roughly how the Little Boy weapon, which was detonated over Hiroshima, worked, using uranium-235 as its fissile material. In the Little Boy design, the U-235 "bullet" had a mass of around 86 pounds (39 kg), … See more With regard to the risk of proliferation and use by terrorists, the relatively simple design is a concern, as it does not require as much fine engineering or manufacturing as other methods. With enough highly enriched uranium, nations or groups with relatively low levels … See more The gun method has also been applied for nuclear artillery shells, since the simpler design can be more easily engineered to withstand the rapid acceleration and g-forces imparted by … See more For technologically advanced states the gun-type method is now essentially obsolete, for reasons of efficiency and safety (discussed above). The gun type method was largely … See more Bombs • Little Boy, 1945–1951 • Thin Man, cancelled See more • Simulation of "Little Boy" an interactive simulation of the gun-type design atomic bomb "Little Boy" See more
Nuclear Weapons Nuclear Threat Initiative
http://large.stanford.edu/courses/2016/ph241/xu1/ WebThrough this project, two types of atomic bombs were developed: a simple uranium gun-type fission weapon and a more complex plutonium implosion-type weapon. In my … order a new bus pass
Fission Weapons
WebOct 1, 1977 · Fission Weapon. In fission weapons, a mass of fissile material (uranium highly enriched in U-235 or plutonium-239) is assembled into a supercritical mass either … WebSep 19, 2007 · Description: Gun-type fission weapon (Little Boy). Date: September 2007: Source: Based on an illustration by FastFission (Image:Gun-type Nuclear weapon.png) and a modified version by Howard Morland (Image:Gun-Type Fission Weapon.png).The projectile and the target were slighty modified (the projectile was a stack of rings). WebThe "gun" assembly method. Gun-type fission weapons are fission-based nuclear weapons whose design assembles their fissile material into a supercritical mass by the use of the "gun" method: shooting one piece of sub-critical material into another. Although this is sometimes pictured as two sub-critical hemispheres driven together to make a … order a new california id