classical scattering

Question 1

what are four types of photon interactions?

Answer 1

none

change direction, no energy loss (elastic) - classical scatter

change of direction, lose energy (inelastic) - compton

absorbed - photoelectric, pair production, photonuclear disintegration

Question 2

5 types of interaction from lowest beam energy to highest

Answer 2

classicaly
photoelectric (proportional to z3)
compton
pair production
photonuclear disintegration

Question 3

what is classical scattering?

Answer 3

• photon comes and interacts with electron
• photon absorbed by electron but not enough energy in that photon to completely ionise the electron as it has less energy than the binding energy
• there is a change in direction
• there is no loss of energy or ionisation
• because these are low energy electrons there are off little importance
• photon comes in, gets absorbed and re-emitted in a different direction with no loss of energy

Question 4

facts of classical scattering

Answer 4

lowe energy electrons of about 10KEV interact in this manner

occurs with x rays in simulator