410801
UASG 81-20
Castle-Bravo Air Concentration and Deposition
Patterns from a 3-D Particlein-Cell Cace
by
Kendall R. Peterson
May 18, 1931
ABSTRACT
The MATHEW-ADPIC code suite has been extensively modified to give the
total external dose from the detonation of the Castle-Bravo nuclear test at Bikini
Atoll until evacuation of the inhabitants of neardy atolls. The advantages of this
code suite is that it uses all the observed winds (in a mass-conservation sense) at and
after the detonation to provide dose rates and doses due to passage of the debris
clouc anc to the time-iritegrated deposition up to evacuation
time.
Previous
assessments have given the fallout pattern (deposition only) at time H+l hours.
The present code formulation gives excellent agreement with the estimated
total external dose (based on measurements) to people on Rongelap and Ailinginae
atolls.
BEST COPY AVAILABLE
“work Deriormed under the auspices of the U. S. Department of Energy under
Contract No. W-7405-ENG-48.