Figure: Close-in radiation contours for shot
Coulomb B.
Nuclear test code-named Coulomb B was detonated on September
6, 1957. The total yield was 0.3 kilotons. Source: DASA 1251 "Local Fallout
from Nuclear Test Detonations. U.S. Army Nuclear Defense Laboratory, Defense
Nuclear Agency (Now Defense Threat Nuclear Agency.) p. 185.