Radiation safety exposure factors Flashcards
PUBLIC EXPOSURES
Annual (Infrequent)
5 mSv .5 rem
PUBLIC EXPOSURES
lens of eye
15 msv 1.5 rem
PUBLIC EXPOSURES skin hands feet
50 mSv 5 rem
EMBRYO/FETUS EXPOSURES
total dose
5 msv .5 rem
EMBRYO/FETUS exposure
Monthly E fective Dose
.5 mSv , .05 rem
NRC regulations restricted controlled area
dose equivalent limit of <
<.1 rem/week
Unrestricted/uncontrolled area of <
0.01 rem a week
radiation area should be posted when
> .005 rem (5mrem) (0.05 mSv) in one hour at 30 cm from a radiation source
A high radiation area should be posted when
dose of > .1 rem (1 mSv) in one hour at 30 cm from a radiation source
OCCUPATIONAL EXPOSURES Annual - msv , rem
50 msv , 5 rem
OCCUPATIONAL EXPOSURES cumulative (formula)
10 mSv x age , 1 rem x age
OCCUPATIONAL EXPOSURES cumulative (formula)
10 mSv x age , 1 rem x age
OCCUPATIONAL EXPOSURES
lens of eye msv , rem
150 mSv , 15 rem
OCCUPATIONAL EXPOSURES
lens of eye msv , rem
150 mSv , 15 rem
OCCUPATIONAL EXPOSURES
skin, hands , feet msv rem
500 msv 50 rem