Crossroads Baker, "Helen of Bikini"
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Test Baker, the underwater detonation of a Fat Man bomb nicknamed Helen of Bikini by an anonymous “Kilroy,” took place on July 25, 1946. Encased in a bathysphere fashioned from a submarine conning tower and suspended ninety feet below the surface of Bikini’s lagoon, Helen of Bikini was spectacular. Her energy burst through the lagoon surface at 11,000 ft. /sec pushing over two million cubic yards of radioactive seawater and sediment to a height of 4,300 feet within sixty seconds. Nine vessels were sunk and an additional five ships were physically destroyed, although still afloat. When it collapsed, the column of radioactive sediment and seawater spread over the surviving ships permanently contaminating them. Helen of Bikini destroyed the entire fleet of target vessels.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- 89233218CNA000001
- OSTI ID:
- 1647205
- Report Number(s):
- LA-UR--20-26145
- Country of Publication:
- United States
- Language:
- English
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