insufficient physical exercise. However‚ not all known causes of cancer such as ionizing radiation are covered to this extent. How big of a role does ionizing radiation play in cancer deaths? Is it even worth noticing? First‚ in order to understand why ionizing radiation leads to cancer‚ an important distinction must be made between ionizing and nonionizing radiation. “Radiation is ionizing if the energy of the radiation suffices to remove an electron from an atom to create an ion. Conversely‚ if the energy
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Concepts of Radiation Radiation * Emission of energy from an atom and the transmission of this energy through space. * Energy propagated in a material medium or space. * Energy in transit. What are the types of radiation? * Radiation is of two general types in our environment. * They are called non-ionizing and ionizing. Ionization * the energy transferred to the electrons causes them to be pulled away or removed from an atom entirely. * The result is the
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Assignment Front sheet BTEC National Extended Diploma in Applied Science Unit: 20 Medical Physics Techniques Assignment Number:4 Radiotherapy & Radiation Protection Subject /Unit Teacher: Adrian Greaves Tutor & Tutor Group Student Name: KamenStanchev Feedback Date(s): Date Received: Final Hand-in Date: Student declaration : I declare that the work submitted is my own and has not been lent to anybody else or copied from them; that all internet and other references have been acknowledged. or
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Adaptive Radiation An example of adaptive radiation occurring after a mass extinction is the extinction that killed off the dinosaurs. What caused this mass extinction was when a massive comet hit earth‚ off the Yucatan Peninsula. However‚ the mammals that survived this catastrophic event for the most part‚ survived because they could burrow in holes for shelter. Regardless‚ about 90% of all life on earth was destroyed. This led to an opportunity for the surviving plants and animals to disperse
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Radiation Exposure Do you know much radiation you are exposed to everyday? Many people are not aware of the radiation levels around them on a daily basis. I believe that exposure to radiation should be minimal. I think protection and prevention is vital. Being aware of the health risks and what can be done to protect yourself should be a well known piece of knowledge. If followed‚ this knowledge can help reduce radiation exposure levels. Exposure to radiation is higher today than it has ever
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Uses of Radiation in Medicine Nuclear Chemistry and the Field of Medicine: A Union Shan Gupta‚ Yahoo! Contributor Network Jul 2‚ 2009 "Contribute content like this. Start Here." Applications of Radiation in the Field of Medicine Overview: With the discovery of radiation in the late 1800’s by Antoine Henri Becquerel‚ Marie Curie‚ and Pierre Curie‚ the powers of the atom were seemingly multiplied greatly. With this new power of the atom also came new uses for it‚ especially in the
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Nuclear Radiation There are many ways that the movie The Day the Earth Stood Still and the short story "There Will Come Soft Rains" are similar. "There Will Come Soft Rains" by Ray Bradbury is a science fiction story that deals with nuclear radiation and what the future world would be like if there was an atomic bomb. This short story is a good example of what could happen in the future. The Day the Earth Stood Still is a movie that also has the same genre‚ that it is science fiction. It helps
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INTRODUCTION Radiation‚ flow of atomic and subatomic particles and of waves‚ such as those that characterize heat rays‚ light rays‚ and X rays. All matter is constantly bombarded with radiation of both types from cosmic and terrestrial sources. This article delineates the properties and behaviour of radiation and the matter with which it interacts and describes how energy is transferred from radiation to its surroundings. Considerable attention is devoted to the consequences of such an energy
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have leaked significant amounts of radiation that have affected ecosystems in the region. On March 21‚ 2011‚ TEPCO (Tokyo Electric Power Company) investigated the seawater near the southern discharge port of the Fukushima Daiichi NPS‚ revealed that radioactive substances significantly exceeding safety standard values were detected. According to National Geographic‚ Joseph Rachlin‚ director of Lehman College’s Laboratory for Marine and Estuarine Research says “radiation can hurt ocean animals in several
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chemical symbol identifies the element it is redundant to include the atomic number‚ so it is rarely used. Carbon-14‚ therefore‚ would be written as 14C or C-l4. Unit of Radiation Energy The electron volt (eV) is an extremely small unit and is equal to only 1.6 X 10-12 ergs. It is only used in radiation safety to express radiation energy. The electron volt is such a small unit that it is usually written as mega- or kilo- electron volts which is a million electron volts (MeV) or a thousand electron
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