Radiotherapy Flashcards
1
Q
What are photons
A
Wave like packets of energy that deposit energy when they meet matter
2
Q
What are gamma rays emitted by
A
Radioactive decay
3
Q
What are x rays formed by
A
Interaction of electrons with a nucleus
4
Q
What is Gy
A
The deposit of one joule of radiation energy in 1kg of matter of tissue