303 OPERATIONS 3.3.1 Procedure : : | oO The generalscheme for preparation of the two-phase collectors was as follows: I, The rainedisplacement reservoir waa filied with solution and adjusted so that addition of 1 drop of water to the funnel caused 1 drop of solution to flow into the collector, 2, The approprists volume of chlorobenserme<carbon tetrachloride mixture was added together with thebag of desiccant, and the liquid level was measured, ' 3. After insertion of the cork and closure of the cover, the other reservoir was filled, (Pig. 30k) . Recovery was made in cenjunction with the recovery operation of Project 2,5b. ‘The general scheme for the recovery of the total fall- aut gamnles vas as follows: 1. Upon arrival at. the station, the activity was recorded, 2. The cover of the two-phase collector was opened, abnormalities inside the collector were noted, and the liquid level was measured, _ 3 The valve on the side of the collector was opened, and all the aqueous phase collected in a suitable container, hk. After the aqueous phase was drawn off, the chlorobenzene phase along with the solid fallout was collected through the quicke opening valve at the bottom of the collector (Fig. 3.5). 33.2 of 4.3.2.1 Shot 2 The Shot 1 device was detonated on the reef of Bikinl Atoll near Charlie at 065 local time, 1 March 1954. Samples were recovered by helicopter on D+iy and D+S and returned to Parry Island by destroyer, Analysis was begun on D+6, Only tie How sample was suitable for parte icle size work, Samples from Victor and Fox were used for comparison _ Of aqueous and solid phases. A crater sample wag obtained from Task Unit 7. - 3432.2 Shot 2. , . The Shot 2 device was detonated on a barge in the Shot 1 crater at 0630 local tine, 27 March 1954, The two-phase collectors were not activated for this event, A ground sample from Abla and liquid from the crater were obtained from Task Unit 7. : 3.3.2.3 Shot The Shot 3 device was detonated on Tare at 0620 local time, 7 April 1954, Samples were recovered by helicopter on Del and returned to Perry Island by sea-going tug, Analysis uss begun on D¥3. Samples were obtained from Victor and Yoke, but were quite small on 20 SECRET — RESTRICTED DATA .