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Questions and Answers
What is the maximum diameter of the patient aperture in a CT gantry?
What is the maximum diameter of the patient aperture in a CT gantry?
- 90 cm
- 110 cm
- 50 cm
- 70 cm (correct)
Why is the anode-cathode axis perpendicular to the patient axis in a CT machine?
Why is the anode-cathode axis perpendicular to the patient axis in a CT machine?
- To minimize photoelectric absorption
- To increase patient dose
- To reduce the heel effect (correct)
- To reduce radiation intensity at the detector array
What type of generator is used to minimize photoelectric absorption in a CT machine?
What type of generator is used to minimize photoelectric absorption in a CT machine?
- Low-voltage generator
- High-frequency generator (correct)
- Three-phase generator
- Direct current generator
What is the typical anode heat capacity in a CT machine?
What is the typical anode heat capacity in a CT machine?
How much does a high MH generator contribute to achieving high X-ray intensity in a CT machine?
How much does a high MH generator contribute to achieving high X-ray intensity in a CT machine?
What type of voltage generators are commonly used in CT imagers?
What type of voltage generators are commonly used in CT imagers?
Why does the high-voltage generator aim to reduce bone attenuation relative to soft tissue in CT imaging?
Why does the high-voltage generator aim to reduce bone attenuation relative to soft tissue in CT imaging?
What is the purpose of using large-diameter, thick anode disks rotating at 10,000 RPM in a CT machine?
What is the purpose of using large-diameter, thick anode disks rotating at 10,000 RPM in a CT machine?
Which component houses the X-ray source, detector array, and collimator assembly in a CT gantry?
Which component houses the X-ray source, detector array, and collimator assembly in a CT gantry?
What is done by the operating console on a CT scan machine?
What is done by the operating console on a CT scan machine?
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