(a)[2]
State how the intensity of the X-ray beam and its hardness are controlled in a modern X-ray tube. Intensity: Hardness:
(b(i))[2]
A parallel beam of X-rays with intensity $I_0$ falls normally on the model. Calculate, in terms of $I_0$, the intensity $I_s$ that emerges after passing through soft tissue only.
(b(ii))[2]
Calculate, in terms of $I_0$, the transmitted intensity $I_c$ after passage through soft tissue and bone.
(c)[1]
Using your answers in (b), suggest, with a reason, whether the X-ray image would have good contrast.
(a(i))[2]
Calculate, in terms of $I_0$, the intensity $I_S$ transmitted through soft tissue only.
(a(ii))[2]
Calculate, in terms of $I_0$, the intensity $I_C$ transmitted through soft tissue and bone.