External dose factors

["Clement, Christopher" <clementc@aecl.ca>]

Radsafers:

I've come across one reference that gives a comprehensive list of
external dose factors relating specific activity in soil to the external
dose rate received from standing on the surface of the soil.  This
reference is NUREG/CR-5512 "Residual Radioactive Contamination from
Decommissioning".  The values given are for surface sources (in Sv/d per
Bq/m3) and 15 cm thick sources (in Sv/d per Bq/m3) for a long list of
radionuclides.

I understand that these factors come from Federal Guidance Report No. 12
(US EPA) "Dose Coefficients for External Exposure to Radionuclides
Distributed in Air, Water and Soil" by Eckerman and Ryman 1992.

I have two questions:

1.How can I get a copy of this Federal Guidance Report No. 12? (sorry,
I'm Canadian so I don't know about these things)

2. Does anyone know of other comprehensive references with this type of
information?  I'd be particularly interested in a document from an
internationally recognized body such as the ICRP or IAEA.

Thanks for the help.

------------------------------------------------------------
Christopher H. Clement
Scientific Specialist / Radiation Protection Program Manager
Low-Level Radioactive Waste Management Office
Atomic Energy of Canada Limited
clementc@aecl.ca