pues the detonation. 4 hop Other photo stations included a barge, an observer ship, and surface stations on Igurin and Mui. In addition, cameras were located inside the hull of a ship to record the effects on the ship's structure of the shock resulting from the detonation. EG&G provided special lighting apparatus for this experiment. Planning for Newsreel on Johnston Island includes three ship-board photo stations, two aircraft photo installations, and six mobile and stationary ground installations. Operation of the photo stations was completely automatic. Timing signals from the Control Points activated the control equipment and the cameras. Cam timers permitted cameras to continue operating after the timing signals dropped out at # 1 second. Signals to surface photo stations were trans- mitted by wire; aircraft, shipboard, and remote surface stations were operated by radio signals. Film recovery was made as soon as possible after a detonation. EG&G maintained complete film processing facilities on Parry Island at Eniwetok. Results. . EG&G performed analysis of fireball records at the Eniwetok Proving Grounds. Analysis for other projects will be accomplished, as required, in the United States. Precision equipment was employed to measure fireball diameter, and the data obtained were reduced on an IBM 704 computer. com zo {DOE Cask RO Final Reporte containing the fireball yield calculations were issued in the field on all but the last shot. is given in Table 6. _ COPIED/DOE ge r FAME nae A list of these reporte 2/3 PAGE 96“

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