5 Questions
What is the main purpose of using a special filter in clinical CT?
To remove long-wavelength x rays
What is the thickness of the inherent filtration used in CT?
About 3 mm Al-equivalent
What happens to the energy distribution of the radiation beam when it passes through the filter and the object?
It creates beam hardening
Why does filtration result in the beam becoming 'harder'?
By increasing the mean energy of the beam
What is the purpose of added filtration in clinical CT?
To shape the energy distribution for uniform beam hardening
Learn about the importance of using special filters in clinical CT scans to remove long-wavelength x-rays, reduce patient dose, and increase the mean energy of the beam. Understand the concept of total filtration as the sum of inherent and added filtration.
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