10 Questions
What is the maximum diameter of the patient aperture in a CT gantry?
70 cm
Why is the anode-cathode axis perpendicular to the patient axis in a CT machine?
To reduce the heel effect
What type of generator is used to minimize photoelectric absorption in a CT machine?
High-frequency generator
What is the typical anode heat capacity in a CT machine?
6 MHU
How much does a high MH generator contribute to achieving high X-ray intensity in a CT machine?
$10$ MH
What type of voltage generators are commonly used in CT imagers?
Three-phase or high-frequency voltage generators
Why does the high-voltage generator aim to reduce bone attenuation relative to soft tissue in CT imaging?
To allow a wider dynamic range of the image
What is the purpose of using large-diameter, thick anode disks rotating at 10,000 RPM in a CT machine?
For rapid heat dissipation
Which component houses the X-ray source, detector array, and collimator assembly in a CT gantry?
'The gantry'
What is done by the operating console on a CT scan machine?
Imaging control and image manipulation.
Learn about the advantages of computed tomography, such as better contrast resolution and 3D imaging, as well as the basic scheme for data acquisition in CT scans. Understand concepts like beam geometry and components involved in data acquisition.
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