lowest kvp photons - ANSWER-not diagnostic, absorbed by tissue, inc rad dose to pt
low kvp are filtered out by - ANSWER-aluminum at tube window
window - ANSWER-only part of tube that lets xrays pass
additional ct filters - ANSWER-thin aluminum or copper sheets that attenuate low
energy xrays
ADC job - ANSWER-amplify and digitize elec signals from detectors
DAS - ANSWER-data acquisition system
DAS parts - ANSWER-detector, ADC, transmissor
fxns of DAS - ANSWER-measure beam, change elec signal to digital, send data to
computer
CT image recon - ANSWER-# rays going to pt v # rays passing through pt
high quality CT - ANSWER-diagnostic CT
low dose ct use - ANSWER-AC, anatomical mapping
when is ac ct done - ANSWER-before pet imaging
order of pet ct - ANSWER-topogram, ct, pet
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