radioactivity safety Flashcards
1
Q
what does radiation harm
A
living cells
2
Q
what are the collisions of gamma, beta and alpha radiation colliding with living cells called
A
ionisation
3
Q
what happens when the radiation collides with living cells
A
they mutate cells which divide uncontrollably to cause cancer
4
Q
what two radiation sources are most dangerous outside of the body and why
A
gamma and beta because alpha cannot pass through the skin
5
Q
what radiation source is most dangerous inside the body and why
A
alpha because beta and gamma pass straight through
