Equation 1.6 indicates that a ray originating in the center of the sphere would traverse
only ‘4 of the massin the shell model that it would in the homogeneous model.
sult would be an enhancementof radiation.
The re
Once the shell of material in the shock front
passes the detector, an even greater enhancementresults.
"
i“ previously stated, the nit (n, y) component of initial radiation is essentially emit-
ted within 0.2 second. Since it takes at least one second for the shock front to reach a
detector at a distance of 7,000 feet (even for devices in the order of 6 Mt), the N'4 (n
ania is “ eSny enhances. The fission-product gamn:as continue to con.
i strongly enhanced by the
iation
i radiation
Pe
is
during the first 30 seconds; therefo re, this
ributewave.
~~
17