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1 Genetics, Emissions, and Cancer This paper will illustrate DNA and how specific patterns of radiation affect the genetic make- up and can allow in maladies that can be harmful to the body. Details on how radiation can eliminate cancer as well. To communicate the fundamental of DNA and how the use of radiation could be helpful or damaging there are three types of radiation discussed. Alpha rays are actually high speed particles. Early researchers tended to refer to any form of energetic radiation as rays, and the term is still used. An alpha particle is madeup of two protons and two neutrons; held together by the same powerful nuclear force that binds the nucleus of any atom. In fact, an alpha particle is a nucleus – it is the same as the nucleus of an ordinary atom of helium, but it does not have any electrons around it, and travels very fast. Alpha particles are a type of ionizing radiation. If alpha radiation hits the unshielded human body from the outside, it does not manage to break through the skin's outer layer of dead corneous cells and thus does no harm. A substance that only generates alpha radiation is therefore only harmful if it gains access to the body through the food or by inhalation. Then the radiation can reach living cells and do much local damage (kose.ee, 2011). Next is the Beta, which are rapid moving electrons. They usually have energies in the range of a few hundred keV to several MeV. Given that electrons are much lighter than helium atoms, they can infiltrate further, through quite a few feet of air, or several millimeters of plastic or a small amount of very light metals. Technically, beta particles are electrons produced by radioactive decay, when a neutron alter into a proton, an electron, which is expelled from the
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This note was uploaded on 04/01/2012 for the course GENERAL chm 110 taught by Professor Wilk during the Fall '11 term at University of Phoenix.

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