X-ray Interaction and Effects

The video tutorial explains the interaction of x-rays with matter, covering key processes such as coherent scattering, photoelectric effect, and Compton scattering. Each process is described in terms of its impact on x-ray behavior and its implications for dental x-ray imaging, including patient exposure and image contrast.

What is the first possible outcome when an X-ray interacts with matter?

• It causes ionization.

• It travels without interaction.

• It is absorbed completely.

• It creates a new X-ray.

What is another name for coherent scattering?

• Classical scattering

• Photoelectric effect

• Compton scattering

• Inelastic scattering

In coherent scattering, what happens to the electron when an X-ray hits it?

• It absorbs the X-ray completely.

• It emits a new X-ray.

• It is displaced from its shell.

• It vibrates momentarily.

What is the result of the photoelectric effect on the atom?

• The atom emits a neutron.

• The atom becomes positively charged.

• The atom becomes neutral.

• The atom remains unchanged.

Which electron is removed during the photoelectric effect?

• Outer shell electron

• K shell electron

• M shell electron

• L shell electron

What is released when an L shell electron fills a K shell vacancy?

• Alpha particle

• Beta particle

• Characteristic X-ray

• Gamma radiation

What is the most common interaction in dental X-ray beams?

• Coherent scattering

• Pair production

• Photoelectric effect

• Compton scattering

In Compton scattering, what happens to the X-ray photon?

• It remains unchanged.

• It creates a new electron.

• It changes direction with reduced energy.

• It is absorbed completely.

What is the charge of the atom after Compton scattering?

• Double positive

• Positive

• Negative

• Neutral

What is a consequence of Compton scattering in X-ray imaging?

• Improved image clarity

• Reduced patient exposure

• Decreased operator exposure

• Increased image fogging