| Main Title |
A basic technique and models for determining exposure rates over uranium-bearing soils / |
| Author |
Oksza-Chocimoski, George V. ;
Oksza-Chocimowski, George V.
|
| CORP Author |
Office of Radiation Programs-Las Vegas Facility, NV. |
| Publisher |
U.S. Environmental Protection Agency, Office of Radiation Programs-Las Vegas Facility ; Distributed by the National Technical Information Service, |
| Year Published |
1982 |
| Report Number |
EPA-520/6-82-014 |
| Stock Number |
PB83-147892 |
| OCLC Number |
37498822 |
| Subjects |
Radioactivity--Measurement. ;
Uranium ores. ;
Uranium mill tailings. ;
Gamma rays--Measurement.
|
| Additional Subjects |
Soils ;
Radioactivity ;
Tailings ;
Mathematical models ;
Radiation hazards ;
Radon ;
Gamma rays ;
Diffusion ;
Coverings ;
Mill tailings ;
Uranium mills ;
Radioactive waste disposal ;
Computer applications ;
Uranium 238 ;
Radiation doses
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD ARCHIVE |
EPA 520-6-82-014 |
|
Headquarters Library/Washington,DC |
08/25/2014 |
| EJBD |
EPA 520-6-82-014 |
|
Headquarters Library/Washington,DC |
08/25/2014 |
| ELBD |
EPA 520-6-82-014 |
|
AWBERC Library/Cincinnati,OH |
02/28/1998 |
| ERAD |
EPA 520/6-82-014 |
|
Region 9 Library/San Francisco,CA |
07/16/2012 |
| NTIS |
PB83-147892 |
Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. |
|
01/01/1988 |
|
| Collation |
ix, 147 p. : ill. ; 28 cm. |
| Abstract |
The application of simple computer-implemented analytical procedures to predict exposure rates over uranium-bearing soil deposits is demonstrated in this report. The method is based, conceptually, on the energy-dependent point-source buildup factor and, operationally, on two consecutive integrations. The dependence of photon fluxes on spatial variables is simplified by an analytical integration over the physical dimensions of the deposit, represented as a slab bearing homogeneously distributed nuclides of the uranium-238 decay chain, at equilibrium, and covered with a source-free overburden slab; both slabs being of variable thickness but of infinite areal extent. The resultant analytical expression describes flux as function of energy-dependent parameters, thickness of the source slab, and depth of overburden, and is equated analytically to exposure rates bearing the same dependence. Elementary computer techniques are then employed to integrate numerically the exposure rates corresponding to the specific energies of uranium-238 decay chain, for chosen thicknesses of the overburden and uranium-bearing slabs. |
| Notes |
"EPA-520/6-82-014." "August 1982." Includes bibliographical references. |
