Stack #130118
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| caliper | device used to measure part thickness
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| fixed kvp charts | the kvp is held constant for a given range of subject densities while the mas is varied to achieve an appropriate image density
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| variable kvp fixed ma chart | kvp is adjusted for changes in part thickness while maintaining a fixed mas
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| detectors | devices used to measure radiation in an AEC system
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| minimum response time | the shortest exposure time that a particular system can produce
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| backup time | maximum length of time the x-ray exposure will continue
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| three | number of detectors an AEC system generally have
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| good positioning skills | most important skill a radiographer should possess when using an AEC system
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| anatomically programmed radiography | a radiographic system that combines an AEC system with a technique chart that is computerized to correspond to anatomical procedures
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| six hundred mas | backup time exposure should not exceed this
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| one milisecond | minimum response time in order to cut exposure
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| autotomography | breathing technique
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| APR | anatomically programmed radiography
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| light paddles | detectors used in photomultiplier tube
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| photomultiplier tube | type of AEC that gives off light when radiation hits it
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| electricity | photomultiplier tube converts light to this
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| ionization chamber | hollow cell that contains air and is connected to the timer circuit by an electrical wire
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| entrance type | type of AEC whose detectors are positioned in front of the cassette
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| exit type | type of AEC whose detectors are behind the cassette
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| Kilovoltage peak | controls the potential difference between the cathode and anode and causes the electrons to flow between cathode and anode
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| MA | factor controlling the number of electrons which wil flow from cathode to anode during x-ray exposure
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| tube current | term used to describe the number of electrons flowing across the tube
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| small focal spot | will produce more radiographic detail when used; most often with extremities
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| Critical | part measurement for variable kvp/fixed mas charts is what
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| Shorter | the scale of contrast for variable kvp/fixed mAs is what
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| Variable | is what radiographic contrast is for variable kvp/fixed mAs
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| Higher | patient dose is thisfor variable kvp/fixed mAs
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| increased | tube heat load is this for variable kvp/fixed mAs
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| less critical | part measurement for fixed kvp/variable mAs
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| longer | contrast scale for fixed kvp/variable mAs
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| standardized | radiographic contrast for fixed kvp/variable mAs
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| lower | patient dose for fixed kvp/variable mAs
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| decreased | tube heat load for fixed kvp/variable mAs
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Created by:
quietone055
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