The predominant type of interaction that takes place between the x-ray photon and the high-atomic-number phosphor of the intensifying screen is
A)photoelectric.
B)Compton.
C)pair production.
D)Bremsstrahlung.

Question

Quizplus · Accepted Answer

The high-atomic-number phosphor of the intensifying screen is chosen specifically because it has a high probability of absorbing and then emitting the energy of an X-ray photon through the photoelectric effect. This absorption of energy results in the production of secondary light photons that are detected by the photomultiplier tube and used to generate the image. Additionally, Compton scattering and the other types of interactions listed occur to a much lesser extent with the phosphor, making the photoelectric effect the predominant mode of interaction.

The Predominant Type of Interaction That Takes Place Between the X-Ray