Project 2.2 -— Gamma Rate versus Time Agency: Signal Corps Engineering Laboratories (SCEL) Operations: Scintillation detectors were used to measure initial and residual gamma rates as a function of time and distance. The finstru- ment stations were self-contained and required only timing signals to turn them on at predetermined times. Instrumentation was instmlled on 14 islands along the northern, southern, and southwestern perimeters of Bikini Atoll and on Bokoluo at Enewetak. Shots: BRAVO, ROMEO, KOON, UNION (Bikini); NECTAR (Enewetak). Radiation Exposure Potential: Staffing: High during instrument recovery, Two civilians associated with this project, both frm SCEL, received 4.040 and 6.280 R. Project Report: Reference 51. Project 2.3 -- Neutron Flux Measurements Agencies: Naval Research Laboratory (NRL) Oak Ridge National Laboratory (ORNL) Headquarters, Military District of Washington Operations: Neutron flux was measured by installing fission dktectors at sites on islands in northern Bikini Atoll, although only t tions on Bokbata and the reef were used. sta- Recovery was delayedljon both shots, occurring on D+5 for BRAVO and D+3 for ROMEO. Some s les were counted in the field in two trailers set up on Parry; othkrs were flown to NRL. Shots: BRAVO, ROMEO (Bikini). Radiation Exposure Potential: covery operations. Some exposure potential to thosp The project report states that no serious in re- Biffi- culties were encountered despite the rather high residual radiktion. In addition, there may have been some potential for personnel trailers on Parry. 178 [in the