Code of Maine Rules
10 - DEPARTMENT OF HEALTH AND HUMAN SERVICES
144 - DEPARTMENT OF HEALTH AND HUMAN SERVICES - GENERAL
Chapter 220 - Rules Relating to Radiation Protection
Part D - STANDARDS FOR PROTECTION AGAINST RADIATION
Subpart C - OCCUPATIONAL DOSE LIMITS
Section 144-220-D-C-1203 - Determination of external dose from airborne radioactive material
Current through 2024-38, September 18, 2024
A. Licensees or registrants shall, when determining the dose from airborne radioactive material, include the contribution to the deep-dose-equivalent, lens-dose equivalent, and shallow-dose equivalent from external exposure to the radioactive cloud. See Appendix B, footnotes 1 and 2.
B. Airborne radioactivity measurements and DAC values shall not be used as the primary means to assess the deep-dose equivalent when the airborne radioactive material includes radionuclides other than noble gases or if the cloud of airborne radioactive material is not relatively uniform. The determination of the deep-dose equivalent to an individual shall be based upon measurements using instruments or individual monitoring devices.
