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The Koon shot of Operation Castle was a test of a thermonuclear device designed at the University of California Radiation Laboratory (UCRL), now Lawrence Livermore National Laboratory. The "dry" two-stage device was known as "Morgenstern" and had a highly innovative secondary stage. It was tested on April 7, 1954.
Operation Castle was a United States series of high-yield (high-energy) nuclear tests by Joint Task Force 7 (JTF-7) at Bikini Atoll beginning in March 1954. It followed Operation Upshot–Knothole and preceded Operation Teapot .
The test was part of the Koon shot of Operation Castle. The Mk-22 failed to achieve anything like its intended yield due to premature heating of the secondary from exposure to neutrons. As the other UCRL test planned for the Castle series, the liquid-fueled "Ramrod" device had the same basic design flaw, that test was canceled
Such fizzles can have very high yields, as in the case of Castle Koon, where the secondary stage of a device with a 1 megaton design fizzled, but its primary still generated a yield of 100 kilotons, and even the fizzled secondary still contributed another 10 kilotons, for a total yield of 110 kT.
Mark 14 nuclear bomb. Castle Union was the code name given to one of the tests in the Operation Castle series of United States nuclear tests.It was the first test of the TX-14 thermonuclear weapon (initially the "emergency capability" EC-14), one of the first deployed U.S. thermonuclear bombs.
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EBird records 61 observed bird species within the reserve, including Redwings, Canada Geese, and Mute swans [12] (with one breeding pair, which nests in Island Lodge every year). The reserve ranks 91st in Manchester for number of species observed, with the same count as Castleshaw Reservoirs, Medlock Valley and Tandle Hill Country Park.
The Crom Estate (pronounced K-ROM') is a nature reserve located in the south of County Fermanagh, Northern Ireland, along the shores of Upper Lough Erne.It is one of three estates owned and managed by the National Trust in County Fermanagh, the others being Florence Court and Castle Coole mansions.