Ionization of Electromagnetic Radiation (3)

Question 1

Three types of Ionization from Gamma radiation/Electromagnetic Radiation:

Answer 1

• Photoelectric Processes
• Compton Scattering
• Pair Producing

Question 2

Photoelectric Process

Answer 2

Incident photon (low-energy) strikes an electron, ejecting it while transferring all of its energy.

Question 3

Compton Scattering

Answer 3

Incident photon (medium-energy) strikes an electron, ejecting it, reducing the energy within the photon.

Question 4

Pair Production

Answer 4

• An electron and “positron” are created by destroying the incident photon.
• When the “positron” interacts with another electron it creates 2 photons of lower energy.