Staffing: Seven were associated with this project, three from BRL (two military, one civilian), three from the 930lst TSU (two military, one civilian), and one military from NAU. Project Report: Reference 49. Nuclear Radiation (Program 2) This program had two major objectives: (1) documentation of the ini- tial neutron and gamma radiation from large-yield nuclear detonations, and (2) documentation of fallout from large-yield surface detonations. Fall- out information from large-yield detonations was available only from the MIKE detonation of Operation IVY (1952), and this was limited to data upwind and crosswind from the burst point. An ambitious program was insti- tuted for CASTLE to study the downwind deposition of weapon debris. This planned effort and unplanned incidents following BRAVO resulted in much information about fallout from the CASTLE shots. Project 2.1 -- Gamma Radiation Dosimetry ; Agency: Signal Corps Engineering Laboratories (SCEL) } Operations: : ters from 1 to 15 nmi Films and chemical-dosimetry vials were installed in shel(1.9 to 27.8 km) from ground zero on islands and reefs of both atolls (18 islands and throughout the perimeter of Bikini and 10 along the northern section of Enewetak). Stations were activated as late as possible and information was recovered as soon as radsafe conditions permitted. Helicopters were used to the extent possible. Shots: BRAVO, ROMEO, KOON, UNION (Bikini); NECTAR (Enewetak). Radiation Exposure Potential: Exposure potential existed for those activating the stations subsequent to BRAVO and for all personnel involved in recovery. Staffing: SCEL. Three people were associated with this project, all from One was a civilian, and the others were military. Project Report: Reference 50. 177