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 :NBS and FCC personnel involved were not in the Bikini area. This Electronics Group was the same as that in the Ship Material and Inspection Division under the DSM. The highest recorded exposure in the Electronics Group was 0.6 R.


 * Since the experiments measured interference with electromagnetic waves at or after detonation time there was no urgency to recover equipment in radioactive areas such as the Bikini Islands and target ships.


 * Project Report: Reference C.9.209, Enclosure C.

Program V -- Radiological Safety


 * Agency: Radiological Safety Group


 * Operations: There were 12 projects in this program (see Appendix C). The first eight involved radsafe monitors who measured radioactivity in the air, water, and on ships to obtain data on radiation in order to protect personnel. The eight monitor groups were: destroyer, seaplane, boat, boarding party, fixed base, gunboat, Bikini Lagoon channels, and airborne. Monitoring instruments used were: 275 Victoreen Geiger counters (Model No. 263), 150 Victoreen ionization chambers (Model No. 247), 12 alpha meters, and an unknown quantity of self-reading dosimeters. All monitors also wore film badges whenever there was a probability of encountering radioactivity. Film badges were normally exchanged daily. All monitor groups had Geiger counters and ionization chambers except the Bikini Lagoon Channel Group which used battery-operated, deep-channel counters with submersible probes. Project 9 (Photometric Film Badges) measured radiation at various locations in the target array and recorded radiation received by all who wore film badges. They used 5,000 sulfur and calcium triphosphate capsules in addition to a large number of film badges. Projects 10 and 11 measured gamma radiation over a period of time on several target ships. Project 12 personnel measured total gamma intensity on several target ships.


 * Staffing: As shown in Table 6, 436 personnel of the Radsafe Group have been identified (Reference B.0.19). Of these 316 were badged at least one time (see Table 21 for badging summary). Personnel in all 12 projects on the Radsafe Program had a high potential for exposure because of their assigned duties. Monitors who reboarded ships with boarding parties (Project 4) after Test BAKER accumulated the highest exposures. The highest individual accumulated recorded exposures of 3.720 R. Most of those badged in Program V were military personnel performing monitoring duties


 * Project Report: Reference C.9.209, Enclosure J.

Program VI -- Radiometry


 * Agencies: Navy Bureau of Ordnance (BuOrd)
 * Army Air Forces (AAF)


 * Operations: Measurement of the bombs' radiant energy was attempted from several locations. For ABLE, instruments were installed on one ship 18 nmi

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