Bureau of Services for Blind Persons
Michigan Career & Technical Institute
Michigan High-Speed Internet Office
Michigan Rehabilitation Services
Workers' Disability Compensation Agency
Black Leadership Advisory Council
Michigan Community Service Commission
Executive Order 2020-107 established Michigan Workforce Development Board
MiSTEM convenes a statewide network of leaders in education, business and local communities to empower the next generation of innovators.
Unemployment Insurance Appeals Commission
formerly MI Compensation Appellate Commission
Search is currently unavailable. Please try again later.
The web Browser you are currently using is unsupported, and some features of this site may not work as intended. Please update to a modern browser such as Chrome, Firefox or Edge to experience all features Michigan.gov has to offer.
| 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