This new group of nuclear explosives involved getting energy sources from within the nucleus of the atom. The Atomic bomb gained its power from the fission of all of the atomic nuclei in several kilos of uranium. A Ball about the size of a baseball made an explosion equal to about 20,000 tons of TNT. An atomic bomb can also be called a fission bomb because it uses fission to release the nuclear power from the fuel. The fuel is usually either Uranium-235 or plutomium-239.
Nuclear Fission/Nuclear Fusion ------------------------------ A). Fission (A-Bomb) & Fusion (H-Bomb) B). U-235, U-238 and Plutonium III. The Mechanism of The Bomb ------------------------- A). Altimeter B).
So, a ball of hydrogen is surrounded by either uranium or plutonium and then by a non-nuclear explosive. The explosive is set off, and it causes the uranium or plutonium to react through fission, which in turn causes the hydrogen to fuse. Once again, the result is a colossal explosion meant for mass destruction. The three main effects that would follow a nuclear explosion are blast, thermal radiation or heat, and radiation. The very first thing to happen is the formation of a fireball.
Fission reactions are the process in which a nucleus splits, forming two smaller nuclei and fusion reactions are the process in which two nuclei fuse together forming a larger nuclei. Nuclear reactors use controlled nuclear reactions to produce electricity. Nuclear energy is a more efficient energy source than any other available energy sources. The Three Mile Island nuclear disaster brought about sweeping changes in many areas of nuclear safety. Nuclear reactors have been designed to automatically shut down in the case of an earthquake.
Nuclear fuel goes through fission when struck by free neutrons and then generates neutrons when it breaks apart. Only U-235 uranium atoms, a nuclear fuel, could be used for the chain reaction. This was because it was able to be obtained in large enough quantities to even be useful. Little Boy was the codename of the atomic bomb dropped on Hiroshima. The design of Little Boy used the gun assembly method, by shooting one piece of the uranium into the other to create a chemical explosion.
the fission that is produced is when a heavy element splits in half or is halved into two smaller nuclei, the power of the fission is located by the rate of the splitting of the nuclei at once which causes watts of electricity to be forced into the energy type. Energy that is released by the nuclear fission matches almost completely to that of the properties of kinetic fission particles, only that the properties of the nuclear energies nucleus are radioactive. These radioactive nucleuses can be contained and used as fuel for the power. Most of this power is fueled by uranium isotopes. These isotopes are highly radioactive.
The Atomic Bomb The atomic bomb is a powerful, explosive nuclear weapon. It is fueled by the fission of the nuclei of specific amounts of plutonium or uranium, in a chain reaction. The strength of the explosion created by one of these bombs is equal to the strength of an explosion created by thousands of tons of TNT. To detonate one of these bombs, enough mass of plutonium or uranium must be provided to reach what is known as "critical mass." Critical mass is the mass at which the nuclear reactions going on inside the material can make up for the neutrons that are leaving the material through its outside surface.
When the atom fissions (splits), it splits into two smaller atoms which are most always radioactive and releases an enormous amount of energy and two or three neutrons. The neutrons released could then possibly hit other nuclei of uranium, which causes them to split in the same fashion. This is a chain reaction (a series of fissions).
History of Nuclear Bombs The first design of a nuclear weapon in the United States was a gun-barrel assembly, in which two sub-critical masses of very highly enriched uranium (HEU), were brought together by normal artillery propellant in a short gun barrel into a single over-critical configuration. (Criticality defines the minimum amount of a fissionable material in a particular configuration and density capable of a self-sustaining chain reaction). The second type of fission weapon is the implosion assembly, in which a high explosive (with a much faster detonation speed than the propellant used in a gun-type weapon) compresses fissile material so that it reaches a super-critical mass. Less fissile material is required for an implosion assembly because the critical mass varies inversely as the square of density. A nuclear explosion requires an exponentially growing fission chain reaction in which a neutron causes fission, producing energy and liberating two or three neutrons, more than one of which on average goes on to cause another fission, and so on.
The H-Bomb is made up of two different kinds of isotopes of hydrogen, deuterium and tritium. Smaller atomic bombs trigger the finale explosion for the Hydrogen bomb. Like the TNT, they compress the two isotopes into a very dense mass which initiates fusion, producing great amounts of energy. The actual bomb casing is made out of uranium. When the inside of the bomb detonates its causes the casing to undergo fission which causes even more energy to be released.