DNA 1240H-2
Table 17-4,
Fraction of fission products, %, assigned to base surge. 48
Class of Burst
Very Shallow
Bhallow
¢g
i
10
1
D
1
=
3
Deep
1
=
10
Very Deep
For Very-Shallow and Shallow bursts, the volume for the “hollow”
base-surge geometry can be expressed
Vs = wz ((m - Ro) - Zeot a| (Ri + Ro)
(17-9a)
For Deep and Very-Deep bursts, the volume for the "solid" base
eurge geometry can be expressed
Zz
Va = 2 3Re - 3R,Zcot a + ze cot? a]
(17-96)
where (see Figure 17-10)
Zs
height of base surge
R,*
outer radius of base surge
R°
inner radius of base surge
@=
interior angle between each face of the surge and the
base, or water surface.
17-52