Filtration's effect on the beam spectrum is best described by which statement?

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Multiple Choice

Filtration's effect on the beam spectrum is best described by which statement?

Explanation:
Filtration hardens the beam by removing the low-energy photons produced at the anode. Those soft photons contribute more to patient dose than to image formation, so eliminating them reduces dose while also shifting the remaining photons to higher energies. As a result, the spectrum becomes harder and the average energy increases. Filtration does not change the photons’ direction, and it does affect the spectrum, so the description that includes both removing low-energy photons and increasing the average energy is the most accurate.

Filtration hardens the beam by removing the low-energy photons produced at the anode. Those soft photons contribute more to patient dose than to image formation, so eliminating them reduces dose while also shifting the remaining photons to higher energies. As a result, the spectrum becomes harder and the average energy increases. Filtration does not change the photons’ direction, and it does affect the spectrum, so the description that includes both removing low-energy photons and increasing the average energy is the most accurate.

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