Radiological Incidents Flashcards
What do we use as a standard unit to measure radiological exposure
Roentgen
REM stands for
Radiation equivalent man
RAD stands for
Radiation absorbed dose
1000 ur (micro rems) equals
1 mr (milli rems)
1000 mr (milli rems) equals
1 r (rem)
Natural background in DC
5-20 ur (micro rem)
ALARA is
As low as responsibly achievable
Basic principles of ALARA
Time, distance, shielding
Max dose limits all activities
5 r (rem)
Max dose limits protecting major property
10 r (rem)
Max dose limit protecting large populations
25 r (rem)
Dose limits for protecting large populations, only by volunteers
> 25 r (rem)
Absolute turn back
200 r (rem)
Approach an incident uphill, upwind _____ ft from or at the edge of debris
300
Personnel NOT equipped with rad dosimeters may conduct life saving operations for _____ minutes
15
Personnel with rad dosimeter may conduct life saving operations with ______
Max dose limits
Establish the control line ____ times the back ground readings or _____
2 times or 50ur/hr
Cold zone
2mr
Warm zone
2mr-1r
Hot zone
Over 1 r
When wearing external dosimeters they should be read every______ minutes
15
Initial fire department personnel NOT equipped with radiological dosimeters may conduct life saving operations for a maximum of _______.
15 minutes
