What is the function of the filter placed in the useful X-ray beam?

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Multiple Choice

What is the function of the filter placed in the useful X-ray beam?

Explanation:
Filters act to absorb the softer, low-energy photons in the useful X-ray beam. By removing these less penetrating photons, the beam becomes "harder" (higher average energy), which reduces patient skin dose and improves image quality and exposure efficiency. It doesn’t focus the beam, nor does it cool the tube, and it doesn’t eliminate all radiation—the higher-energy photons still pass through.

Filters act to absorb the softer, low-energy photons in the useful X-ray beam. By removing these less penetrating photons, the beam becomes "harder" (higher average energy), which reduces patient skin dose and improves image quality and exposure efficiency. It doesn’t focus the beam, nor does it cool the tube, and it doesn’t eliminate all radiation—the higher-energy photons still pass through.

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