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QC

QuestionAnswer
mag mode places the focal point ____, while increasing voltage to the ___. farther from the output phosphor; focusing lenses
mag mode increases size ____ 1.5-4x
magnification formula= normal input diameter/input diameter during magnification
FPD keep the same resolution except if ____ is used. binning
to give the smallest pt dose, we use largest fov
pros and cons of mag mode pros: greater detail and spatial resolution. cons: higher pt dose. dimmer image
intensifier artifact S-distortion is caused by external magnetic field. equipment or earth's magnetic field.
intensifier artifact pincushion distortion is caused by the input is curved
QC testing is done by medical physicists
the reproducibility variance btwn exposures must be less than 5%/0.05
blooming in fluoroscopy when bright areas appear larger. bone, metal. means too much radiation is hitting that area
Created by: user-1989152
 

 



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