Technical Manual and User’s Guide for MILDOS, Version 4.1 (NUREG/CR-7258, ANL/EVS-18/5)

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Publication Information

Manuscript Completed: October 2018
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


The MILDOS computer code is used to estimate the radiological impacts of airborne emissions from uranium mining and milling facilities. The code allows users to consider both conventional uranium ore operations and operations associated with in situ recovery (ISR) facilities. The code is used by license applicants and U.S. Nuclear Regulatory Commission staff to perform routine radiological impact and compliance evaluations for various uranium recovery operations. As part of a major code update, the following improvements and additions were made to the code: (a) revised ISR models, (b) support for ores containing thorium-232 (Th-232) and its daughter radionuclides in addition to the currently supported uranium-238 (U-238) and its daughter radionuclides, (c) a revised area source model, (d) the capability to perform sensitivity analysis on specific input parameters, (e) the capability to use current meteorological data provided by the National Centers for Environmental Information, and (f) an interactive results module.

Page Last Reviewed/Updated Wednesday, March 24, 2021