Iowa Admin. Code r. 641-40.17 - Determination of external dose from airborne radioactive material
(1) Licensees
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.
(2) 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 .
Notes
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