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The cover to the Project 4.1 Final Report, "Study of Response of Human Beings Accidentally Exposed to Significant Fallout Radiation" Project 4.1 was the designation for a medical study and experimentation conducted by the United States of those residents of the Marshall Islands exposed to radioactive fallout from the 1 March 1954 Castle Bravo nuclear test at Bikini Atoll, which had an ...
In 2000, Hydro Nuclear Services and Westinghouse filed a memorandum to dismiss Doyle’s complaint. [48] In March 2002, the U.S. Court of Appeals Third Circuit dismissed Doyle’s request that the Administrative Review Board pay a tax enhancement for receiving back pay in a previous decision. [49]
Mushroom cloud from China's first nuclear test, Project 596. China tested its first nuclear weapon device ("596") in 1964 at the Lop Nur test site. The weapon was developed as a deterrent against both the United States and the Soviet Union. Two years later, China had a fission bomb capable of being put onto a nuclear missile.
The device was the most powerful nuclear weapon ever detonated by the United States. Bravo had just under one third the energy of the Soviet Tsar Bomba, the largest nuclear device ever tested. However, while the Soviets intended to create such a large weapon, Castle Bravo's yield was much higher than anticipated.
Trinity, part of Project Manhattan, was the first ever nuclear explosion. The nuclear weapons tests of the United States were performed from 1945 to 1992 as part of the nuclear arms race. The United States conducted around 1,054 nuclear tests by official count, including 216 atmospheric, underwater, and space tests.
The USAF inventory of nuclear warheads was checked to ensure that all warheads were accounted for. In addition, the DoD announced that a Pentagon-appointed scientific advisory panel, called the Defense Science Board, would study the mishap as part of a larger review of procedures for handling nuclear weapons.
Castle Bravo is the sixth largest nuclear explosion in history, exceeded by the Soviet tests of Tsar Bomba at approximately 50 Mt, Test 219 at 24.2 Mt, and three other (Test 147, Test 173 and Test 174) ≈20 Mt Soviet tests in 1962 at Novaya Zemlya.
The Mk-21 design project began on 26 March 1954 (just three weeks after Bravo), with production of 275 weapons beginning in late 1955. Romeo , relying on natural lithium, was rapidly turned into the Mk-17 bomb , the first deployable US thermonuclear weapon , [ 10 ] and was available to strategic forces as an Emergency Capability weapon by mid-1954.