When the nucleus of the atom breaks down, its flying splits travel at great speed. The kinetic energy of this explosion turns into equivalent thermal energy that can be exploited for good in power plants or evil in the atomic bomb.
In order for this capacity to be exploited, a sequential reaction should be launched in a substance with radioactivity. This happens when the fragmentary split of the exploded nucleus of an atom with the nucleus of another atom, causing it to burst. These segments are also linked to other nuclei, causing their fission and so on. This fission occurs in large radioactive nuclei, such as uranium, as a result of its collision with atomic particles that are suitable for this purpose. When a neutron collides with the nucleus of some uranium isotopes, the uranium nucleus breaks down into nearly two large, almost neutron or three neutrons.
In turn, these neutrons collide with uranium or three nuclei and cause their fission. This starts the chain reaction.The energy of this entire nuclear reaction emanates in a fraction of a second, producing a massive explosion. To achieve this explosion, the atomic fuel must consist of pure uranium 235 or pure plutonium 234. Both of these two are fissionable. In the nuclear reactor, arrangements must be made to slow down the destructive detonation of the bomb.
This is done using a combination of the fissionable uranium counterpart and the other most stable and stable counterpart, uranium 238. The natural uranium extracted from the earth contains about one-thousandth of the fissile uranium 235 atoms. This makes uranium one of the largest and most valuable metals. It is not possible to obtain a sequential reaction in this material, so the percentage of uranium 235 atoms in natural uranium should be increased or plutonium should be added to it. Fuel-Powered reactors with isotopes are known as fast reactors.
A serial sequence in uranium 235. A neutron causes the uranium atom to split. Fission results in two large spikes and two or three new neutrons. These neutrons, in turn, collide with other nuclei, causing new breaks.
ِAtomic Explosion. 235 U2 and plutonium 234 can be safely stored in the quantity is low, because the release of many protons across the material surface leaves no room for a continuous chain reaction. The smallest amount of fissile material allows room for continuous chain reaction called critical mass. Any amount of fissile material greater than the critical mass Neutronatifi maintains within it is sufficient to sustain sequential interaction. In the atomic bomb, the two accumulates each without the critical mass to form one block above the critical mass, and the explosion occurs.
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| Fission of Uranium Atom. |
In order for this capacity to be exploited, a sequential reaction should be launched in a substance with radioactivity. This happens when the fragmentary split of the exploded nucleus of an atom with the nucleus of another atom, causing it to burst. These segments are also linked to other nuclei, causing their fission and so on. This fission occurs in large radioactive nuclei, such as uranium, as a result of its collision with atomic particles that are suitable for this purpose. When a neutron collides with the nucleus of some uranium isotopes, the uranium nucleus breaks down into nearly two large, almost neutron or three neutrons.
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| Atomic Explosion. |
In turn, these neutrons collide with uranium or three nuclei and cause their fission. This starts the chain reaction.The energy of this entire nuclear reaction emanates in a fraction of a second, producing a massive explosion. To achieve this explosion, the atomic fuel must consist of pure uranium 235 or pure plutonium 234. Both of these two are fissionable. In the nuclear reactor, arrangements must be made to slow down the destructive detonation of the bomb.
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| Enrico Fermi 1901-1954 Italian Physicist built in the US the first Nuclear Reactor in 1942. |
This is done using a combination of the fissionable uranium counterpart and the other most stable and stable counterpart, uranium 238. The natural uranium extracted from the earth contains about one-thousandth of the fissile uranium 235 atoms. This makes uranium one of the largest and most valuable metals. It is not possible to obtain a sequential reaction in this material, so the percentage of uranium 235 atoms in natural uranium should be increased or plutonium should be added to it. Fuel-Powered reactors with isotopes are known as fast reactors.
A second principle is used in thermal reactors, which mixes atomic fuel with a sedative. It is a neutral substance with light atoms such as carbon or water that is hit by neutrons emitted by fission. These collisions slow the neutrons.
It is known that fast neutrons are often absorbed by colliding with stable uranium 238 but that does not apply to slow neutrons. The introduction of the sedative increases the presence of slow neutrons, allowing more of them to cause fission in radioactive uranium 235 atoms. This method generates huge amounts of energy. The generated heat is used in the heart of the nuclear reactor, which includes uranium fuel and a liquid-coolant.
The Coolant is heated to a high temperature which enables it to drain water.The resulting steam is used in coal or oil power plants to manage the turbines and turbines, in turn, to run generators. The first nuclear reactor was built in Britain in 1956 and then many countries and there are a number of countries today have nuclear plants to generate electricity to meet our growing needs of energy in view of the growing population and expansion of industry and future reactors are the fast reactors generated, Faster material than consumed.
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| Thermal Reactor. |
It is known that fast neutrons are often absorbed by colliding with stable uranium 238 but that does not apply to slow neutrons. The introduction of the sedative increases the presence of slow neutrons, allowing more of them to cause fission in radioactive uranium 235 atoms. This method generates huge amounts of energy. The generated heat is used in the heart of the nuclear reactor, which includes uranium fuel and a liquid-coolant.
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| Nuclear Powered Aircraft Carrier. |
The Coolant is heated to a high temperature which enables it to drain water.The resulting steam is used in coal or oil power plants to manage the turbines and turbines, in turn, to run generators. The first nuclear reactor was built in Britain in 1956 and then many countries and there are a number of countries today have nuclear plants to generate electricity to meet our growing needs of energy in view of the growing population and expansion of industry and future reactors are the fast reactors generated, Faster material than consumed.
A serial sequence in uranium 235. A neutron causes the uranium atom to split. Fission results in two large spikes and two or three new neutrons. These neutrons, in turn, collide with other nuclei, causing new breaks.
ِAtomic Explosion. 235 U2 and plutonium 234 can be safely stored in the quantity is low, because the release of many protons across the material surface leaves no room for a continuous chain reaction. The smallest amount of fissile material allows room for continuous chain reaction called critical mass. Any amount of fissile material greater than the critical mass Neutronatifi maintains within it is sufficient to sustain sequential interaction. In the atomic bomb, the two accumulates each without the critical mass to form one block above the critical mass, and the explosion occurs.
Thermal reactor. The heart is composed of fuel and sedative elements. The reaction is controlled by the insertion of the control poles into the heart of the reactor or withdrawn from it. It is made of a neutron absorbent material such as cadmium or boron. The radiator conveys heat from the reactor core to water in a separate circuit. The steam generated in the turbine generator is used.
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