ch 15: imaging personnel Flashcards
Annual EfD Non-occupational for frequent exposures
1 mSv (frequent exposures)
Annual EfD Non-occupational for infrequent exposures
5 mSv (infrequent exposure)
lead equivalent minimum for lead aprons/gloves
100 kVp - 0.25 mm lead minimum
0.5 mm lead most common
lead equivalent minimum for lead thyroid shield
0.5 mm lead equivalent minimum
lead equivalent minimum for protective eyeglasses
0.35 mm lead equivalent minimum
between time, distance, and shielding, which is most effective?
distance
control booth barrier parameters
Permanently secured
At least 2.1 m from floor
Window 1.5 mm lead equivalent
overhead clear lead acrylic requirements
0.5 mm lead equivalent
Portable exam cord length and degree to stand from patient
2 meter cord on exposure switch
Stand 90 degrees to the patient
who occupies controlled vs. uncontrolled spaces?
Controlled: radiation workers occupy
Uncontrolled: anyone
if the peak energy of the beam is 120 kVp, the primary protective barrier must:
-contain 1.6 mm lead
-extend 2.1m up from the floor
control booth barriers must:
- be permanently secured
-extend at least 2.1 m from floor - window 1.5 mm lead equivalent
clear lead acrylic barrier can:
30% lead by weight
0.3 - 2 mm lead equivalent
2.1 m from floor
what lead equivalent is required for lead aprons in fluoro procedures?
0.5mm lead equivalent
what lead equivalent is required for gloves gloves in fluoro procedures?
0.25 mm lead equivalent
