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ARRT REVIEW
EQUIPMENT OPERATION AND QUALITY CONTROL
Question | Answer |
---|---|
ALL THE FOLLOWING ARE ASSOCIATED WITH THE ANODE EXCEPT: | THERMIONIC EMISSION- THIS OCCURS AT THE CATHODE WHEN ELECTRONS "BOIL OFF" THE FILAMENT |
THE TYPE OF X-RAY TUBE DESIGNED TO TURN ON AND OFF RAPIDLY, PROVIDING MULTIPLE SHORT,PRECISE EXPOSURES, IS: | GRID-CONTROLLED |
TYPICAL EXAMPLES OF DIGITAL IMAGING INCLUDE: | MRI, CT, CR |
COMPONENTS PARTS OF A CT GANTRY INCLUDE | HIGH-VOLTAGE GENERATOR, MULTIDETECTOR ARRAY, X-RAY TUBE |
WHICH CIRCIUT DEVICES OPERATE ON THE PRINCIPLE OF SELF-INDUCTION: | AUTOTRANSFORMER AND CHOKE-COIL |
IF EXPOSURES FACTORS OF 85 KV, 400 Ma, AND 12MS YEILD AN OUTPUT EXPOSURE OF 15OmR WHAT IS THE MILLIROENTGEN PER MILLIAMPERAGE (mR/mAs)? | 31 |