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failure to set exposure factors properly,failure to position pt correctly, failure to observe the pt for movement, and failure to process the film correctly
what are common operator errors
produce a very dark film and the MA meter fluctuates abnormally
what are signs the timer has gone bad
rectifier and timer
if film comes out to light and there is normal meter fluctuation what has gone bad?
MAS reciprocity test
test that uses the penetrameter to compare the function of different MA settings and the timer
when the pt is postioned properly and and the tube is aligned w/ the film and a clear streak is down one side of the film call maintenance to align collimator
short scale contrast
many blacks and whites on the film, but very few shades of gray. this would be found on extremity films
camels hair brush then screen cleaner, 4x4 gauze to wipe down the screen allow to air dry. record date it was cleaned
what do you use to clean the cassettes?
the amount of black, metallic silver on the film after development it is also the measurement of the quantity of radiation absorbed by the film
is a leaded light tight cabinet which is divided in compartments for different sizes of film this bin must closed after every use to avoid accidental exposure
composed of fixing agent, acidifier, hardener,perserve, and h2o MAKES THE IMAGE PERMANET TAKES 10 MINS
90 sec vs. 90 mins= less time more accurate, film is more unifrom and smoother work flow
what are the benifits of automatic processing
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