PRIVACY ACT MATERIAL REMOVED (SUPERSEDES MEMORANDUM OF 14 MARCH 1986) 410407 MEMORANDUM 15 April 1936 TO: File FROM: C. Thomas SUBJECT: Calculated Radiation Dose for Ri wd - Operations IVY and CASTLE PURPOSE The purpose of this memorandum is to assess the radiation exposure potential f° during November 1952, while a participant at Operation IVY. Although did not directly participate in Operation CASTLE, conducted at Bikini and Enewetak Atolls during the spring of 1954, he was stationed on Kwajalein during this test series; hence, his potential for radiation exposure resulting from the CASTLE tests is also addressed. OPERATION IVY During the month of November 1952, participated in the two atmospheric nuclear tests conducted at Enewetak Atoll in conjunction with Operation IVY. During this time period, was a Yeoman 3rd Class (YN3) assigned to the Gunnery Department aboard the USS RENDOVA (CVE-114). Specific shot data are detailed in Table lL. Table 1. Operation IVY Shot Data Shot Date (Time) Yield MIKE 1 Nov 52 (0715) 10.4 MT KING 16 Nov 52 (1130) 500 KT Type Detonation Surface Air (1,480 ft) Source: Reference | Dose reconstructions for Navy units participating at Operation IVY have been performed (Reference 2), activities while at Enewetak appear to deviate somewhat from the typical crew scenarios used in that analysis; therefore, the dose presented in Reference 2 for the crew of the USS RENDOVA is adjusted to account for his specific activities. PRIVACY ACT MATERIAL REMOVED