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For Cole info Norris Bradbury, Whitley, Reeves fm Graves.
of fallout fm Shot Bravo.
Following is a sunmary
I plan to keep you advised of further developments and
more frequently for later shots.
Regret that my preoccupation with events sub-
seauent to Bravo shot preventec my informing you eariier.
Part 1:
Fallout
fis revered on an approximate line from Bikini to Bikar
Atclls, and was last reported approximately 2CO miles due south of the island of
CLASSIFICATION CANCELLED
WITH DELETIONS
Yawaii at 2:00 Pi, Merch 3, with an intensity of C,.03 to 0.045 mr/hr at 12-29,00C
feet.
The highest activity was evident in a relatively narrow band which passed
just north of Ailingnae, Rongelap, Rengerik, and thence near Bikar.
Part @:
Surface rad readings ater30Pr, March 2, at Rongelap were reported as
1. r/nr average by two different type survey instruments (ANPDR-39 and NWO
Scintanenter).
in survey.
Total offive instruments and two experienced monitors utilized
Consider this data reliable.
BPasec on assumption that fallout
started et Ronszelap at Hplus 6 hours and natives evacuated by H plus 51 hours,
compute averaze total dose to have been aprroximately 100 r.
<2
Natives were
evacuated by 10° AY, March 3,
Part 3:
Film badges were utilized by the USAF veather Detachment on Rongerik.
Hichest dosare received was one badge at 95 r which represented 3 people living
in a tent.
RG
Four badges representing the remainder of personnel in metal barracks
read Lae Aroeat ENERGY Contrel badres between the barracys read 62 r.
826
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