Two x-ray images of the hand are shown. One corresponds to an x-ray beam with an effective energy of a) 140 keV and the other to an effective energy of b) 50 keV. Identify which is which, and the reasons for the differences in the image contrast and signal intensity. a.None of the above. b.The attenuation coefficient does not gives rise to contrast in x-ray imaging and is not energy dependent. At 50 keV the attenuation coefficient is about the same between tissues and bone showing no contrast, whereas at 140 keV there is a greater difference between tissues showing greater contrast. c.The attenuation coefficient gives rise to contrast in x-ray imaging and is energy dependent. At 140 keV the attenuation coefficient is about the same between tissues and bone showing no contrast, whereas at 50 keV there is a greater difference between tissues showing greater contrast. d. The attenuation coefficient gives rise to contrast in x-ray imaging and is energy dependent. At 50 keV the attenuation coefficient is about the same between tissues and bone showing no contrast, whereas at 140 keV there is a greater difference between tissues showing greater contrast
Two x-ray images of the hand are shown. One corresponds to an x-ray beam with an effective energy of a) 140 keV and the other to an effective energy of b) 50 keV. Identify which is which, and the reasons for the differences in the image contrast and signal intensity.
a.None of the above.
b.The attenuation coefficient does not gives rise to contrast in x-ray imaging and is not energy dependent. At 50 keV the attenuation coefficient is about the same between tissues and bone showing no contrast, whereas at 140 keV there is a greater difference between tissues showing greater contrast.
c.The attenuation coefficient gives rise to contrast in x-ray imaging and is energy dependent. At 140 keV the attenuation coefficient is about the same between tissues and bone showing no contrast, whereas at 50 keV there is a greater difference between tissues showing greater contrast.
d. The attenuation coefficient gives rise to contrast in x-ray imaging and is energy dependent. At 50 keV the attenuation coefficient is about the same between tissues and bone showing no contrast, whereas at 140 keV there is a greater difference between tissues showing greater contrast
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
