2 days before Flashcards
1
Q
Which photon interaction with matter is most likely to occur with diagnostic
imaging?
A
PE
2
Q
Which photon interaction with matter is most likely to occur with radiation
therapy delivery via linear accelerators?
A
compton
3
Q
Which photon interaction with matter is most likely to occur with radiation
therapy delivery via orthovoltage ?
A
PE
4
Q
What interaction is responsible for neutron contamination in radiation therapy?
A
photodisintegration
5
Q
prostate nodes in order
A
periprostatic
obturator
external iliac
hypogastric
common iliac
periaortic
6
Q
TD 5/5 bladder
A
65 Gy
7
Q
Linear Energy Transfer (LET) is measured in units of:
A
keV/μm
8
Q
Alpha-beta ratio for early effects
A
10 GY
9
Q
Alpha-beta ratio for late effects
A
3 Gy
10
Q
A
