foe & 2 beats anchoh x9 co oferating 1m The Lagoay and are further posit. .w@ to check the lagoon flushing and eireulation mechaniam, Lagoon samples will be turned over to the radio-ehemistry labdoratery of the Radeafe CENTER fer analysis. §. At about this time, TU 7 will publish an emergeney Radsafe Plan to go into affect in the event of & lowecrder detonation, op the extremes condition of a detonation of the high expleaive only, Thia plan is primarily a defense against the Alpha contamination resulting from the wide spread — of the unfissioned material and of other Alpha emitters used in conjunction with certain shots. BATS i. Semple return plan details will be completed and personnel and equipment checked for readiness. records on the status of contamination task force shipe. @ will be complsted to maintain (early and secondary fall-@Qit) on The radiation reperts system fram multi-engine aircraft will be checked for readiness and adequate information placed in the hands of 7 7.3 and TG 7.4 persomel, DAYS (Move aboard AGC for BIXDM Shets) 1. PEM operational personnel will be alerted to the possibility nece l. . Area GREET was that area Arpangements will be ccupleted for the reeeipt of constant altitude balloon fines, The balloons will de set to fly at about 45,000 feet (i.s., abeut, 10,000 feet below the expected tropepause hetght). Using differential ballast/helium release to contrel pressure flight altitude, the balloons should spell out the air particle trajectory (and the expected cloud trajectory) fer the flight altitude. ‘The balloons trangmit an HP elgnal capable of HF/DF fixing, Fixing for 72 houre per balleon will be done by Gu