Project 6.6 -=- Effects of Nuclear Detonation on the Ionosphere Agencies: Signal Corps Engineering Laboratories (SCEL) 9471st TSU Operations: Island) Ionospheric recorders were set up at Enewetak (Parry and Rongerik atolls in the Marshalls and at distant locations. Following the fallout from BRAVO, operations at Rongerik were curtailed: recorders were started before each shot and left to operate unattended. Shots: All. Radiation Exposure Potential: - = : = a Although the potential for exposure ap- peared quite low, owing to the remoteness of the stations, the actual exposure turned out to be high at Rongerik because of BRAVO. Staffing: Five people were definitely associated with this project, one civilian and four military. Three of the military were the en- see Wha. 19 <mrmanemenih: listed personnel of the 947lst TSU who were on Rongerik and were exposed to the BRAVO fallout. They were assigned an exposure of 98 R in Reference 13 based upon a badge on a tent pole in their work area, but based on later research the exposures were reduced to 78 R (Reference 68). Project Report: Reference 74. Burst Detection Studies Program (Program 7) This program conducted a variety of experiments in nuclear explosion electromagnetic pulse generation, airborne low-frequency sound, and collection of nuclear weapon debris. Project 7.1 -- Electromagnetic Radiation Calibration Agencies: National Bureau of Standards (NBS) Naval Electronics Laboratory (NEL) Signal Corps Engineering Laboratories 1009th USAF Special Weapons Squadron 197 (SCEL)