Questions: A technician notes that the image on the film doesn't extend as far as it should on both sides of the film even though it was collimated correctly. What could be causing this artifact? a. wrong film size b. grid cut off c. light leak in the darkroom d. pitted anode

A technician notes that the image on the film doesn't extend as far as it should on both sides of the film even though it was collimated correctly. What could be causing this artifact? a. wrong film size b. grid cut off c. light leak in the darkroom d. pitted anode
Transcript text: A technician notes that the image on the film doesn't extend as far as it should on both sides of the film even though it was collimated correctly. What could be causing this artifact? a. wrong film size b. grid cut off c. light leak in the darkroom d. pitted anode
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Solution

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Solution Steps

Step 1: Understand the Problem

The problem involves identifying the cause of an artifact in a radiographic image where the image does not extend as far as it should on both sides of the film, despite correct collimation. Collimation refers to the alignment of the X-ray beam to the film, ensuring that the area of interest is properly imaged.

Step 2: Analyze the Options

Let's analyze each option to determine which could cause the described artifact:

  • a. Wrong film size: If the film size is incorrect, it could result in the image not extending as far as expected. However, this would typically affect the entire image rather than just the sides.

  • b. Grid cut off: Grid cut off occurs when the X-ray beam is not properly aligned with the grid, leading to parts of the image being cut off. This could cause the image to not extend fully on both sides.

  • c. Light leak in the darkroom: A light leak would generally cause fogging or exposure issues across the entire film, not just on the sides.

  • d. Pitted anode: A pitted anode can cause uneven X-ray production, but it would not specifically cause the image to not extend on both sides.

Step 3: Determine the Most Likely Cause

Based on the analysis, the most likely cause of the image not extending as far as it should on both sides is grid cut off. This is because grid cut off specifically affects the alignment of the X-ray beam with the film, leading to parts of the image being cut off.

Final Answer

The answer is \(\boxed{\text{b. grid cut off}}\).

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