RTBC Fundamentals Of Digital Radiography Practice Test

Doubling the matrix size with a fixed field of view will:

Double Pixel Size Halve Pixel Size Leave Pixel Size Unchanged Quadruple Pixel Size

Correct Answer:

Halve Pixel Size

Explanation:

When the field of view is fixed and you increase the matrix size, you’re dividing the same image area into more pixels. Doubling the matrix size means twice as many pixels across each dimension, so each pixel covers a smaller area. This makes the pixel size half as large. The field of view hasn’t changed, so only the sampling density changes, not the overall image size.

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