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Radiation Protection

Can I use a different size survey unit than the example in MARSSIM?

Yes. The survey unit size should correspond to the model assumptions used to establish the DCGLW for the survey unit. As always, it is important to document the rationale for the assumptions and to consult with your regulator. 

For more information on the MARSSIM process, visit Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM).

Return to Frequent Questions about Radiation Regulations, Guidance and Compliance.