Radiation Physics-Unit 11 review

Front

What is secondary radiation?

Back

Secondary radiation is produced when an outer shell electron fills an inner shell vacancy.

Front

What is the difference between characteristic x-ray production and photoelectric absorption?

Back

Characteristic x-ray production involves the removal of an inner shell electron, while photoelectric absorption can involve the removal of an outer shell electron.

Front

At what energy level does pair production occur?

Back

Pair production occurs at 1.02 MeV.

Front

What type of scatter occurs when an incident x-ray removes an outer-shell electron?

Back

Compton scatter occurs when an incident x-ray removes an outer-shell electron.

Front

True or False: Compton scatter occurs when there is a removal of an inner shell electron.

Back

False.

Front

What happens during the photoelectric effect?

Back

During the photoelectric effect, an incident photon is completely absorbed, resulting in the ejection of an inner shell electron.

Front

Define Compton scattering.

Back

Compton scattering is the process where an x-ray photon collides with a loosely bound outer shell electron, resulting in the ejection of the electron and a change in the direction and energy of the photon.

Front

What is the significance of the 1.02 MeV threshold in radiation physics?

Back

The 1.02 MeV threshold is significant because it is the minimum energy required for pair production to occur.

Front

Explain the concept of characteristic radiation.

Back

Characteristic radiation is produced when an electron from an outer shell falls into a vacancy created by the ejection of an inner shell electron, emitting a photon with a specific energy characteristic of the element.

Front

What is the role of inner shell electrons in x-ray production?

Back

Inner shell electrons play a crucial role in x-ray production as their removal leads to the emission of characteristic x-rays when outer shell electrons fill the vacancies.