First FRCR (CR1) Practice Questions - First FRCR Examination (Clinical Radiology) - CR1 Exam

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At the photon energies used in diagnostic radiography (around 20-120 keV), which interaction predominantly determines subject contrast in soft tissue and bone?

Compton scattering Coherent (Rayleigh) scattering Photoelectric absorption Pair production

Correct Answer:

Photoelectric absorption

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