ee ¢ a ae ee Joint Task Force SEVEN ltr Operation Plan ~ CTG 7.3 No. 1-53 . Task . Group 7.3 Eniwetok Atoll, M.I. 8 April 1954, 1800M Appendix IV to Annex G Radioactive Fallout Reports 1. For one week following each shot each ship shall report radioactive fallout encountered as follows: a. A report shall be made of fallout readings (gamma only) of 1 mr per hour or higher. b. Only the value of gamma radiation shall be reported. J c. Reports will be coded as follows: 'Rabbit" followed by a number to indicate average topside activity, the number indicating mr per hour (gamma only); "Catfollowed by a number to indicate maximum activity found on the ship, the number indicating mr per hour (gamma only). Thus a message "Rabbit- _ ‘ 2 Cat 7" indicates the average topside activity is 2 mr per hour (gamma only), and the maximum activity found on the ship is 7 mr per hour (gamma only). Fractional numbers will be reported as the nearest whole number. © Thus if the average topside activity is 3.& mr per hour (gamma only) and the maximm activity found on the ship is 8.4 mr per hour (gamma enly) the message to be sent is "Rabbit 4, Cat 8", . d. New reports shall be made when the average topside activity increases to more than twice that last previously reported or decreases to less than half that last previously reported. , ; -e. Reports shall be sent by radio or light to CTC 7.3, to the USS BAIROKO, and to the USS ESTES. These reports shall be delivered to the RadSafe Center on the BATROKO end to the RadSafe Office on the ESTES, f. Reports shall be sent on TG 7.3 UHF Admin or CW Common or on TG 7.1 Pogo or Admin Nets, as appropriate. ; , g. One week after each shot every ship shall send to CTG 7.3 a complete letter report on radioactive contamination experienced since the shot occurred. As applicablej~each letter shall include a table with estimated average intensity topside. in.milliroentgens per hour and approximate position of ship in latitude and longitud@at.fallowing times:. Hourly on the hour from How hour to 2000M Dog "> .. day; every:four;hours from 2000M Dog day. to O40OM Dog plus two day; daily at “> Q800M Dog plus: two - Foe 735 . G-IV-1 a CHANGE #4,