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.	Canadian Radiation Protection Association Annual Meeting 27-30 May 2012 Halifax, Nova Scotia
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.	International Conference on Radiation Shielding 2-7 Nov 2012 Nara, Japan

24 May 2012

Answer to Question #280 Submitted to "Ask the Experts"

Category: Radiation Basics

The following question was answered by an expert in the appropriate field:

Where can I get information (MSDS or other technical info) on the substance ¹⁴C. I know it's a beta source but are there levels of radioactivity (such as low or high levels of radiation)?

Dose equivalence factors, as well as technical references for determining annual intake parameters, are given in Limiting Values of Radionuclide Intake and Air Concentration and Dose Conversion Factors for Inhalation, Submersion and Ingestion, Federal Guidance Report No. 11, U.S. Environmental Protection Agency, EPA-520/1-88-020, September 1988.

Robert Coleman
Oak Ridge National Laboratory

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