Radiographic or Radiographic-Fluoroscopic Shielding Guidelines

  High Workload
(e.g., rooms in hospitals and in radiology and orthopedic offices)
Moderate Workload
(e.g., rooms in medical and chiropractic offices)
Low Workload
(e.g., rooms in podiatry and veterinary offices)
  Up to 1000 mA-min/week Up to 250 mA-min/week Up to 15 mA-min/week
  Lead
(inches)
Concrete
(inches)
Lead
(inches)
Concrete
(inches)
Lead
(inches)
Concrete
(inches)
Operator Shields 1/16 5 1/16 5 1/16 5
             
Primary Beams            
Walls and Floors 3/32 - 1/8 6 - 8  1/16 - 1/8 4 - 6 1/16 4
             
Secondary Radiation            
Walls 1/16 3 - 4 1/32 - 1/16 3 0 - 1/32 1
Doors 1/16 ------- 1/32 - 1/16 ------- 0 - 1/32 -------
Floors and Ceilings 1/32 - 1/16 2.5 - 3.5 1/32 2.5 0 - 1/32 1


Updated: September 11, 2017

 

The above concrete thicknesses are based on the use of standard-density concrete with a density of 147 pounds per cubic foot.

 

Additional shielding design guidance



Related Documents
MIOSHA-RSS-852; Application for a Radiation Shielding Plan Review PDF icon