X-ray Exposure Charts (4)

Question 1

What are X-ray Exposure Charts?

Answer 1

Graphs that show the relationship between a given material thickness, kilo-voltage and mAm.

Question 2

What are X-ray Exposure Charts used for?

Answer 2

determining the necessary exposure for the radiography of an object with a uniform shape and thickness.

Question 3

How is an X-ray Exposure chart made?

Answer 3

Series of exposures done on the same type of film at the same kilo-voltage for differing mAm’s on a sloped or stepped wedge of known material + dimensions. Films are processed, target density is chosen and located on each film at differing thicknesses on the exposed part.
- Thickness values are plotted against kilo-voltage used