True or False | |||
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Another name for an AEC unit ?
AED
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What type of relationship does mA and exposure have ?
Inverse
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What's the most common cause of suboptimal film-screen images when AEC is used ?
Inaccurate centering
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Destructive pathologic conditions can cause underexposure of the area of radiographic interest
True
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What does AED stand for?
Automatic Exposure Device
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Allow the radiographer to adjust the amount of preset radiation detection values ?
Density Control
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If high KV is used when using AEC what will happen to the exposure time ?
It will be shorter
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Prosthetic device that superimposes that detector can cause excessive exposure
True
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Allows the radiographic to consistently reproduce images having diagnostically acceptable density ?
AEC
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What is the most common reason for backup timer activation ?
Radiographer error
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Failure to select the proper detector will increase ___________
Patient Dosage
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If the correct Bucky is selected but the wrong x-ray tube is energized, no radiation will reach the detectors resulting in short exposure time
False, excessively long exposure time
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An electronic, device that converts visible light energy into energy ?
Photomultiplier tube
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When the X-Ray tube is off-centered to the grid, it this to be activated ?
Backup timer
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Two most important factors while using AEC
Patient Positioning and Detector Selection
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High KV and High mA will cause stroboscopic effect
True
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If mA increases what happens to exposure time ?
Decreases
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Excessively long exposure time causes this to be activated ?
Backup timer
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A device used to store a specific quantity of electricity
Capacitor
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If the patient is suspected of having a metal prosthetic device, the radiographer should use a manual technique
True
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