1.

The following improve contrast:a. Collimationb. A higher kVc. Reduced beam filtration (for a given kV)d. Films with higher gammae. The use of contrast media

Answer»

a. True. Collimation improves contrast by reducing scatter. 

b. False. Higher kV means there is more scatter and less difference in absorption between tissues. 

c. True. This is due to a reduction of the overall mean energy of the X-ray beam. 

d. True. 

e. True.



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