1
CALCULATION OF THE CONCENTRATION OF ANY RADIONUCLIDE
DEPOSITED ON THE GROUND BY OFFSITE FALLOUT FROM A
NUCLEAR DETONATION
Harry G. Hicks
Division of Nuclear Chemistry
Lawrence Livermore National Laboratory, Livermore, Ca, 94550
ABSTRACT
A method is described to calculate the dry deposition on the
around of any radionuclide in offsite fallout from a nuclear weapons
test.
The method depends upon the calculation of a source term
(microcuries per square meter of fission and activation products), the
use of concentration-to-exposure-rate conversion factors, and
normalization to a measured external exposure rate.
Fractionation is
treated explicitly by elimination of a fraction of the refractory
elements from the source term.
available measurements.
Calculations are in agreement with