What is the calculated pixel size when the distance between two capillary sources is 15cm and there are 45 pixels between the two activity peaks?

To determine the calculated pixel size, you can use the formula that involves the total distance between the two capillary sources divided by the number of pixels between the activity peaks.

In this case, the distance between the sources is 15 cm, and there are 45 pixels between the two activity peaks. The pixel size can be calculated as follows:

Pixel Size = Total Distance / Number of Pixels

Substituting the given values:

Pixel Size = 15 cm / 45 pixels

Calculating this gives:

Pixel Size = 0.3333 cm

When rounded to two decimal places, this value is approximately 0.33 cm, which matches the correct answer.

This approach demonstrates how the distance and pixel count relate to one another in imaging practices, particularly in nuclear medicine, where precise measurements are crucial for interpreting images accurately. Understanding this relationship can help in various applications, such as adjusting imaging parameters and enhancing the quality of diagnostic studies.