From school course, we remember little about processes such as nuclear reactions, although they are of great importance in the life of each of us.But such a concept as a critical mass of uranium, and did not speak, because for most of us this information from the realm of fantasy.But, nevertheless, this topic is important for the overall development of a very useful!Thus, the nuclear reaction is a defined process, resulting in the occurrence of which there are new particles or new nucleus that occurs at the time of the collision.For the first time the possibility of a nuclear reaction was discovered in 1919, which is confirmed by the presence of special photos.
But if mankind did not yet know what kind of power and strength, it was to have, when I first learned of the nuclear reaction and nuclear energy.At the moment there are two types of such reactions.Nuclear reactions are classified according to the method of interaction.The first option - it is a process consisting of the presence of two phases, resulting in a compound nucleus is formed.There is this process due to low kinetic charges present at the time of collision of particles.The second option - direct nuclear reactions.This reaction is due to very high particle charge.
It is worth noting that at the time of occurrence of absolutely all nuclear reactions are all known in classical physics, conservation laws - the law of conservation of energy, the laws of conservation of momentum, the law of conservation of nuclear charge, baryon number, the conservation of leptons, the parity of the wave function,as well as the law of conservation of isotopic spin.Nuclear reactions can be of several types, of which we have just heard.Nuclear fission is a process in which atomic nuclei split mostly on two cores, but the known cases of ternary fission.The resulting cores have almost the same mass in physics called fission fragments.
fission process in this case can be performed in a spontaneous or in a forced way.Nuclear fusion reaction is the result of merging pairs of nuclear atoms.As a result of this reaction, there is one core, which has a mass of two nuclear atoms which it formed.The thermonuclear reaction - another type of nuclear reaction, but the reaction is used forks slightly less than the previous.In this process nuclear atoms connected thanks to the kinetic energy that appears at the time of thermal motion.The latter type of nuclear reaction - photonuclear reaction.As a result of certain relationships nucleus begins the process of absorption of gamma quanta.
Nuclear reactions are in the form of certain records that can recognize only those people who are actively involved in the education process, and further use of nuclear energy.This occurs most often in the form of special formulas using established characters.Externally, these formulas are similar to the chemical.However, there is one major difference - the amount of primary particles located on the right side, and arbitrary versions - on the left.As you can see, the nuclear reaction has found extensive use in many sectors of the economy, thanks to its unique features and different behavior in different conditions.Moreover, these conditions can be both natural factors and man-made man.In any case, the use of nuclear energy has helped mankind to get the cheapest form of electricity and actively use it all over the planet.Although we know many cases when the most energy is used not for the benefit of man, and to the detriment, but that's another story.
