MILDOS Version 4.1 Computational Verification Report (NUREG/CR-7259, ANL/EVS-19/3)

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Publication Information

Manuscript Completed: April 2019
Date Published: November 2019

Prepared by:
B.M. Biwer, D.J. LePoire, S. Kamboj, and Y.-S. Chang

Casper Sun, NRC Project Manager

Environmental Science Division
Argonne National Laboratory
9700 South Cass Avenue
Argonne, IL 60439
Argonne is a U.S. Department of Energy laboratory managed
by UChicago Argonne, LLC

Office of Nuclear Regulatory Research
U.S. Nuclear Regulatory Commission
Washington DC 20555-0001

Availability Notice


Verification calculations were performed to provide assurance that the MILDOS computer code is performing its calculations as intended, that is, the models are properly implemented in the code. MILDOS is used to estimate the radiological impacts from airborne emissions from uranium milling facilities. It provides the capability to consider both conventional uranium ore operations and operations associated with in situ recovery facilities. The code is used by license applicants and U.S. Nuclear Regulatory Commission staff to perform routine radiological impact estimates for the licensing of various uranium recovery operations. Independent verification of the calculations was performed external to the computer code in spreadsheets using Microsoft Excel®. All major portions of the code were investigated. The verification was conducted on a step-by-step basis and used five sample test cases as templates. Calculations were performed to verify the reported radionuclide release rates, air dispersion results, environmental media concentrations, and human exposure doses.

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