BRAVO to ubtuin the initial increasing exposure rate history evinced on figures
24 and 26.
this method yielded a fallout deposition period of 5.5 hours on
Rongelap anu 12 hours on Utirik.
This time compares well with the original ob~
servations i.:ported by the Marshallese and by U.S. Navy personnel stationed in
the area (S157).
greater detail
Figure
ries.
Initial dose equivalents on "acute doses" are developed in
in another report.
25 demonstrates the external exposure following the 1958 testing se-
Since return to Rongelap followed 3 years after the BRAVO contamination,
this series contributed in large part to the external exposure post return.
24