If the half-value layer of diagnostic radiographic equipment is too low, it may be corrected by
A)increasing the primary beam filtration.
B)decreasing the primary beam filtration.
C)decreasing the kVp.
D)increasing the mAs.

Question

Quizplus · Accepted Answer

The half-value layer (HVL) is the thickness of material necessary to reduce the intensity of the x-ray beam to half of its initial value. If the HVL of the diagnostic radiographic equipment is too low, it means that the primary beam contains too many low-energy photons, which may contribute to patient dose and decrease image quality. To correct this, the primary beam filtration should be increased, which means adding more material (e.g., aluminum) to the x-ray tube housing to remove the low-energy photons and harden the beam. This will increase the HVL and reduce patient dose while maintaining image quality. Decreasing primary beam filtration would decrease the HVL and have the opposite effect. Decreasing kVp or increasing mAs would change the overall exposure but would not necessarily affect the HVL specifically.

If the Half-Value Layer of Diagnostic Radiographic Equipment Is Too