aeeret 2.3.3 a. 2-36 Program 24, Phonex. Objectives. To measure the number and energy distribution of the neutra leaving the surfaces of devices associated with the Maple and Hickory events. b. Technique. The neutrons were detected by observing proton tracks left in nuclear track emulsions by protons ejected from a thin poly- ethliene radiator. The number of neutrons was determined from the density of proton tracks in the emulsion coupled with the known geometry of the experiment. The energies of the neutrons were determined from the ranges of the protons in the emulsion. , In order to protect the emulsions from blast and radiation, the cameras were placed in heavily shielded collimators. For the Maple event, three such collimators were placed on Fox at distances of 500, 700, and 900 yards from the device. For the Hickory event two collimators were placed on Tare at distances of 240 and 400 yards. c. Results. The emulsionswere successfully recovered from all stations and will be processed and scanned at Livermore. The data will not be available for a period of several months. 2.3.4 Program A, Weapons Assembly. The function of Program A was the field assembly of the large weapon devices, In the field each assembly team was headed by a Project Physicist and a Project Engineer thoroughly familiar with the sneerys design, fabrications, and assembly of their device. UPe0/ogg , gaerem™ » PAGE 57%?