Lec 10 - Safety, Quality, Artifacts

Question 1

two approaches for object localization

Answer 1

buccal object rule (tube shift technique), clark’s rule

Question 2

slob rule

Answer 2

same - lingual

opposite - buccal

Question 3

higher linear energy transfer of a beam means blank

Answer 3

more dangerous

Question 4

alpha particles have a blank times higher LET than x rays

Answer 4

20

Question 5

lethal dose of radiation to humans

Answer 5

4.5 grays to whole body

Question 6

acute radiation syndrome like in cancer dose and will have a bunch of side effects

Answer 6

1 gray to whole body

Question 7

acute radiation is not possible with blank

Answer 7

dental x ray unit

Question 8

max permissable dose for dentist and staff

Answer 8

50 mSv / year

Question 9

max permissable dose for general public

Answer 9

5 mSv/ year

Question 10

pregnant or babies max permissable dose

Answer 10

.5 mSv / month

Question 11

background radiation from the sun average amount of exposure per year

Answer 11

3.1 mSv / year

Question 12

highest radiation exposure medical imaging

Answer 12

ct scan

Question 13

NEVER blank the lead apron

Answer 13

fold