tye dei i PaatEee dete Tap meth ar A fallout-recording device had been left by a representati of the fealth and Safety Laboratory (HASL) of the AEC, New York Operatfions Office, WO was concerned with recording offsite fallout. The device orated to record the low levels of radiation expected at offsi s calilocations. s°S maximum reading was 0.100 R/hr and the HASL representative fhad warned the Rongerik personnel to contact him if the meter reading went] "off-scale" (i.e., Blevice). if the radiation exceeded the measuring capacity of the Such a message was sent at 1515, munications Service was received at the Airways anf Air Com- (AACS) Center at Enewetak at 1543, and delifbered to the Army Communications Center at Enewetak at 1547 for retransmlttal to Hq JTF 7. Records do not show if this message was retransmitted of not but, at any rate, the command levels were unaware of the extent of the fallout tn Re i Let at Rongerik (Reference 83). The personnel at Rongerik continued normal activities during mainder of the day. the re- Most changed from the usual tropical short]sleeves and shorts to long sleeves and long pants. to a depth of 1/4 to 1/2 inch The fallout materia (0.6 to 1.2 cm) deep in places an visible layer on tables in the mess hall and barracks (Referenc gathered left a 68). SG Sei et Those at Rongerik made some simple scientific observations fallout. They observed it under a microscope, and they also no made a cathode ray tube glow (Reference 68). Meanwhile, at those fleet units arrayed in a sector bounded and 155° bearings from ground zero at ranges from 20 to 70 nmi km), a second fallout began about 1300 and continued into the e reached maximum at 1800 and had ceased by 2400. This fallout a be composed of much smaller particles that had taken considerab longer to fall from the great heights to which they had been carried thin the large particles from the morning fallout. turned on. Again washdown syste were A TG 7.1 radsafe representative on the Bairoko advispd that all nonessential personnel remain below decks to minimize the popsibility of inhaling the small particles (Reference 79). 217