CT scanners do not detect details smaller than about 0.5 mm. Is this limitation due to the wavelength of x rays? Explain.
Step 1 of 3
Since x-ray photons are very energetic rays due to which it has a relatively very short wavelengths which can be calculated as,
Here, is the wavelength of x-rays, h is the Planck’s constant,c is the speed of photon and E is the energy of X-rays.
As small as the details that to be detected more and more energy of the rays is required and the fact that x-rays get absorbed throughout our bodies’ cells and that energy can be used to alter and damage the cells. Therefore high energy rays is not used by the CT scanner.
So, the details smaller than about 0.5 mm is not detected by the CT scanner.
Textbook: College Physics
Author: Paul Peter Urone, Roger Hinrichs
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