Minnesota Administrative Rules
Agency 144 - Health Department
Chapter 4732 - IONIZING RADIATION
SHIELDING REQUIREMENTS
Part 4732.0355 - GENERAL REQUIREMENTS FOR SHIELDING AGAINST IONIZING RADIATION
Current through Register Vol. 48, No. 39, March 25, 2024
Subpart 1. Applicability.
This part applies to all regulated facilities constructed or structurally remodeled 90 days after November 5, 2007.
Subp. 2. Requirements.
The registrant must ensure that the applicable structural shielding requirements specified in parts 4732.0355 to 4732.0380 are met. Structural shielding modifications must be made if an analysis of operating conditions indicates the possibility of an individual receiving an occupational dose or a dose to the public in excess of the limits in parts 4732.0400 to 4732.0430.
Subp. 3. Shielding details.
The shielding must be constructed so that the protection is not impaired by objects passing through the barriers or embedded in the barriers. The primary and secondary barriers must meet the dose limits in parts 4732.0400 to 4732.0430. This includes, but is not limited to, areas of walls containing wall-mounted image receptors.
Subp. 4. Operator's booth design requirements.
The operator's booth, exposure control, and viewing system must meet the following specifications:
Subp. 5. Records.
The registrant must maintain all records of shielding plans and results of radiation measurements at the facility according to part 4732.0330.
Statutory Authority: MS s 144.12