Radiation Safety Flashcards
1
Q
how much radiation does the average person receive per year?
A
3.6 mSv
2
Q
what is the maximum permissible dose for occupationally exposed of radiation?
A
50 mSv/year
3
Q
true/false: there is a threshold dose of ionizing radiation below which no harm occurs
A
false
4
Q
what is the main source of radiation for the occupationally exposed?
A
scatter radiation from the patient
5
Q
what does the inverse square law say?
A
as distance from the source of radiation is increased, intensity (dose) will decrease
6
Q
what type of radiation are lead aprons for?
A
scatter radiation
7
Q
what does ALARA mean?
A
as low as reasonably achievable
