YSERA a, —~- RETYPED COPY ~HEADQUARTERS, Joint vad Force Washington 25, D.C. SEVEN 10 November 1953 Appendix II to Annex N Radiological safety, CUTF SEVEN Operation Plan No. 3-53 RADIOLOGICAL SAFETY OFFICE AND CENTER 1. A JTF SEVEN radiological safety office (RadSafe Office) a daTG 7.l radiological safety center (RadSafe Center) will be estab ished for each shot. The RadSafe Office, manned by personnel of th Technical Branch of the task force Operations Division (J~-3), will erate as the task force agency responsible for the dissemination o task force radiological directives, the presentation of radiological hot briefing material and the maintenance of displays of radiologi 1 information having an impact on the overall task force mission. Center will be established by CTG 7.1 and will serve as o headquarters for the radiological safety activities of TG tinent data collected at the RadSafe Center will be forwar RadSafe Office at the task force command post. 2. Detailed Duties a. Radsafe Office (1) The RadSafe Office, in coordination with CTG 7.4 wh will deituation velop the air RADEX plot, will assemble the overall RADEX and disseminate the air and surface RADEX prior to shot ti cast) and will originate messages from time to time after announcing R (Reentry) Hour, radiological clearances of pr closed areas, radiological directives to task groups, advi commands external to the task force and revisions of the a face RADEX as required. (2) The RadSafe Office will be responsible for the preparation of RadSafe forecast information for the shot briefings. (3) The RadSafe Office will maintain displays of radioldgical in- formation pertinent to the test area and having an impact tside this area to include radiation levels on atoll islands and lagoohh, RADEX information, cloud trajectories and their relation to occupfed atolls and air and surface routes contiguous to the danger area, Ship movements in the danger area, results of water sampling and such other items of special radiological consideration as may be requifed by the operation or the scientific projects. (4) Physical Locations of the RadSafe Office a. For BIKINI ATOLL shots: Command ship 460