page4set5withLOPRIGHALGSEONLY Order 801. Item coal tar epoxy gas seal plugs, operations. KEYWORD (8S) CONTAINMENT ; HARDTACK; NEVADA TEST SITE and post-BANEBERRY i HARDTACK-PHASE II; LANL; 8 150. 110. REPORT NUMBER 72. 710. PERSONAL AUTHOR/AFFIL Robison, W.L. 750. PUBL.ANNOUNCEMENT UCRL-ID--104916 PRIMARY TITLE (M) Estimates of the radiological dose to people living on Bikini Island for two weeks while diving in and around the sunken ships in Bikini Lagoon CORPORATE SOURCE Lawrence Livermore National Lab., States) CA (United EDB-92:082046;NTS-92:017705; INS-92:014913; ERA-17:019563 DATE (YYMMDD) 900900 371. PUB. 34. CLASSIF. LEVEL TEXT Unclassified 950. ABSTRACT Bikini Island and Bikini Lagoon were contaminated by fallout from nuclear weapons tests conducted at the atoll by the United States from 1946 to 1958. The second test, Baker, of the Crossroads series was an underwater detonation in 1946 that sank several ships in the lagoon, including the USS Saratoga and the Japanese battleship Nagato. The ships received high-intensity gamma-ray and neutron bombardment from the Baker test, which induced radioactivity in the metal structures. Some of the tests conducted after the Baker shot (there were 21 tests in all) injected contaminated carbonate particles into the air, some of which were deposited across the lagoon surface. Most of this contaminated soil then settled onto the ships’ decks and other structures and on the lagoon bottom. These sunken ships provide an interesting location for divers. Recreational diving and swimming in and around the ships raises the question of the potential radiological dose from the radionuclides 801. KEYWORD (S) present in or on the ships and in the lagoon sediments. The purpose of this paper, therefore, is to present an analysis of the potential radiological dose to persons who would dive near the sunken ships and live on Bikini Island for a short period of time. BIKINI/FALLOUT; SHIPS/underwater ;SHIPS/radiation hazards ;FALLOUT/sampling ;BIKINI; SHIPS; UNDERWATER; RADIATION DOSES;COBALT 60;CESIUM 137; AMERICIUM 241; BISMUTH 207;EUROPIUM 155;SEDIMENTS; ATOMIC EXPLOSIONS; SAMPLING; Item 9 150. REPORT NUMBER 5003318 PB--92-106244/XAB OFFICIAL USE ONLY