Which of the following changes increases the severity of the anode heel effect?

The anode heel effect refers to the variation in x-ray intensity across the field imaging, where the radiation is stronger on the cathode side than on the anode side. This effect occurs because of the geometry of the anode and the way x-rays are produced and emitted.

Decreasing the source-to-image distance (SID) increases the severity of the anode heel effect due to a few fundamental principles. When SID is reduced, the x-rays have less distance to travel to reach the imaging receptor. As a result, the x-rays produced by the anode have a higher intensity gradient from the anode side to the cathode side. This means the discrepancy in intensity between the anode and cathode sides is magnified because the effective beam gets wider as it travels further, resulting in a more pronounced heel effect when moving closer to the source.

In other words, a lower SID causes the difference in the intensity of the x-ray beam at various points to become more notable, intensifying the anode heel effect. Higher SID, on the other hand, tends to reduce this effect because the beam has a chance to "even out" as it travels a longer distance, leading to a more uniform intensity across the receptor.

The other