0021620
see
of h, use of the empirical functions from reference 5 in Eqs. 15 and
16 gives, for constant V,,,
W(t)
wo:38
2 , W
x
q
(19»)
x
= 12 to > 104
(19a)
= 1 to 12 kT
(20a)
, We 12 to > 104
(200)
r
f
(
~
fo
we
w
»
§o
ct
—
HH
~~
1 to 12 kT
G, x
U
-
k
in which Ks» K6> ko, and kp are constants.
This rather simple treatment of how the value of M.(t) may depend
on weapon yield, downwind distance, wind speed, particle fall rates,
and on the mode of fallout particle formation indicates at least the
scope of the information required in the development of a reliable
scaling function from observed data.
3.5 MEASUREMENT OF CONTOUR RATIOS AND PARAMETERS EFFECTING THE OBSERVED VALUES OF THE CONTOUR RATIOS
DOE/NV
There are two methods for determining the mass contour ratio; each
requires a radiation measurement and a fallout sample. The most direct
method is to collect samples and weigh them (with appropriate analyses
for correction to a scalable mass). The second method is to obtain
sufficient pure fallout to determine the specific activity of the fall-
out and to determine, by soil sampling in the fallout area, the activity
per unit area. The fraction of device contour ratio can be determined
from the same samples of fallout and radiation measurements; radiochemical analyses of the samples are required.
RESTRI
V/
Ps