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Definition
the ability to do work; radiation refers to energy that passes from one location to another and can have many manifestations |
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how are electromagnetic waves classified |
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Definition
by frequency and wavelength |
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high vs lower energy x-rays |
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Definition
higher energy has shorter wavelength and higher frequency |
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to study radiation, the electromagnetic spectrum is divided into what two parts |
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Definition
ionizing radiation: x-rays, gamma rays, high-energy non ionizing: low energy ultraviolet, visible, infared, micro, radio |
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Definition
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heavy, two protons and two neutrons, large mass, less penetrating then beta |
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lighter, negative charge, greater penetration than alpha |
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Definition
produces high speed electrons for oncology, used to treat skin lesions and breast tissue |
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Definition
positively charged part of atom, small mass, number=atomic number of an atom |
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neutral, same mass as proton |
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measured in sieverts or rems, when you recieve various types of radiation, enables the calculation of effective dose |
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Definition
uses weighting factor to measure different types of radiation on specific body parts |
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what type of biological damage can ionizing radiation cause |
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Definition
by ejecting electrons ionizing radiation can cause molecular change, cellular damage, and organic damage |
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what are the 3 sources of ionizing radiation that humans are exposed to |
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Definition
natural and manmade and medical |
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what are examples of natural radiation |
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Definition
terrestrial, cosmic, internal (radionuclides) |
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what are examples of manmade radiation |
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Definition
air travel, nuclear fuel, atmospheric fallout from nuclear weapons, power plant accidents, medical radiation |
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what is medical radiation |
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Definition
diagnostic and nuclear medicine procedures |
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what are the 3 ways in which the radiation received by a patient may be expressed |
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Definition
ESE and glandular dose, bone marrow dose, gonadal dose |
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Term
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Definition
reduce mAs and increase kVp |
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