cee te enn After Shot 1 the concentration of the Yersene in the aqueous phase was changed to 1.75 per cent. The concentration of the reservoir solution was also changed to 10.7 per cent Aerosol OT and 4.7 per cent Yersene, : : . A hand-controlled gate valve was located 9 1/h in. above the bottom of the cone so that the aqueous phase could be easily drawn off. A quick-opening valve was located at the apex of the cone so that the solid material could be drawn off with the organic phase, An evaluation of the collector operation is given in Appendix De 34262 Intermittent Fallout Collector This instrument consists of a series of 2h trays which are exposed in turn to the fallout for any arbitrary period of time from 1 to 30 ming It was used in this project for the investigation of variations ‘in radiochemical composition with time, A complete description can be found in the report of Project 2,5b. 10/ 30203 Laboratory Trailer Analytical work at the test site was carried out primarily in the laboratory trailer, Radiac Sec AN/HMNQ-1, obtained from the Signal Corps, which was set up on Parry Island, Eniwetok Atoll. A descrip- tion is given in TM-11-5537. - 36204 Station Layout Two-phase collectors were located as shown in Table 3.1, TASLE 3.1 - Station Locations Islands Distance from Ground Zero (ft) Bikini Ato How . Nan t =i , photit . * 97,730 stot 3 122,230 69,280 Yoke Bravo 5h470 47,740 43,190 59,520 Oboe 83,660 Victor 62, 500 Fox 50,600 Tare Eniwetok Atoll Shot 6 - 28,130 77,800 ; Mack 47,700 Janet 16,400 Project 6.5 Barge 35,000 Mary 28. &00 19 SECRET - RESTRICTED DATA