MIC CT Registry Review Updated with Correct and Verified Answers
MIC CT Registry Review Tungsten is used as the target material on the tubes anode because it has a ___ atomic number and a ___ melting point. a. low, high b. high, low c. low, low d. high, high - ANS: D. high, high ___ scanner design was the first to acquire four slices in a single rotation. a. second generation b. third generation c. multi-row detector d. continuous rotation - ANS: A. second generation The enormous heat that builds up in the CT tube is caused by the: a. intensity of the x-rays emitted from the tube b. electron beam between the cathode and the anode in the tube c. x-ray filter in the tube which absorbs the lower energy photons before they can enter the patient d. collision of the electron beam with the tungsten target on the tube anode - ANS: D. collision of the electron beam with the tungsten target on the tube anode The number of electrons that flow from the cathode to the anode in the tube is controlled by the: a. anode target b. collimation c. mA d. kV - ANS: c. mA The slip ring on continuous rotation CT scanners: 1. prevents the high voltage cable from winding up 2. allows the exam to commence more rapidly 3. eliminates the need for the reversal of the gantry frame rotation - ANS: all of the above Which of the following is NOT a part of the CT tube? a. tungsten target b. collimator c. rotating anode d. filament - ANS: b. collimator Which of the following are NOT commonly used on today's commercially available CT scanners? 1. xenon detectors 2. fourth-generation technology 3. continuous rotation technology - ANS: 1 and 2
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