ACKNOWLEDGMENTS
The authors would like to thank Andrew Wallo III, W. Alexander Williams,
and Harold Peterson, Jr., of the U.S. Department of Energy for
providing guidance, encouragement, discussion, and comments during the
preparation of this report. We would also like to thank the following people
for reviewing the draft report: Donald L. Mackenzie and Gary Hartman
of the U.S. Department of Energy; Richard Swaja of Oak Ridge
National Laboratory; John Russell of Booz-Allen & Hamilton, Inc.;
YuChien Yuan of Square Y Consultants; and Shih-Yew Chen, Cheong-Yip R. Yuen,
and Stephen C.L. Yin of Argonne National Laboratory. Finally, we thank
Patricia Hollopeter for editorial assistance and the Information and
Publishing Division Document Processing Center for document preparation.
The following is a list of acronyms, initialisms, and abbreviations (including units of measure) used in this document.
ACRONYMS, INITIALISMS, AND ABBREVIATIONS
UNITS OF MEASURE
ABSTRACT
A pathway analysis computer code called RESRAD has been developed for implementing
U.S. Department of Energy Residual Radioactive Material Guidelines. Hydrogeological,
meteorological, geochemical, geometrical (size, area, depth), and material-related
(soil, concrete) parameters are used in the RESRAD code. This handbook
discusses parameter definitions, typical ranges, variations, measurement
methodologies, and input screen locations. Although this handbook was developed
primarily to support the application of RESRAD, the discussions and values
are valid for other model applications.
1. Loureiro is associated with Escola de Engenharia da UFMG, Belo Horizonte, Brazil, and Chia with the Department of Geology, Taiwan University, Taiwan, Republic of China.
2. Breakthrough time is the amount of time it takes contaminants to be transported through the unsaturated zone and reach the water table.
3. Rise time is the time for the contaminants to reach the maximum concentration in well water.
4. In the RESRAD code, radium-224 is considered an associated radionuclide because its half-life is less than one-half year. Therefore, its principal parent radionuclide, thorium-228, is used as the source for radon-220.