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12 Cards in this Set
- Front
- Back
refers to antique phototiming devices and the ionization chambers currently in use
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AEC and AED
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AECs have been popular since their inroduction by
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Russell H. Morgan in 1942
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the ionization chamber is designed for a single purpose
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automatic exposure control
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the single function of an AEC is to eliminate the need for the radiographer to set an
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exposure time
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What factors must be set manually for AEC
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mA and kVp
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When using an AEC the ____ of the ionization chambers be determined and the ____ of tissue is over the location
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location, positioning
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the most critical element in using AECs is the exact position of the
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ionization chambers
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provide diagnostic quality exposures only for structures positioned directly above the ionization chambers
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AED
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The most important fact to remember when using AED is that
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the art of using AECs is the art of positioning
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ionization chamber AECs are usually in a ___ - ____ configuration
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3 chamber
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the center chamber is usually below the
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duodenum and transverse colon
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the left and right chambers are away from the mediastinum and completely within the
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lobes of the lungs during a chest xray
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