Darmstadtium the JINR showed signs of Ds being produced from Pu and S. Each team proposed its own name for element 110: the American team proposed "hahnium" after Otto Hahn in an attempt to resolve the situation on element 105 (which they had long been suggesting this name for), the Russian team proposed "becquerelium" after Henri Becquerel, and the German team proposed "darmstadtium" after Darmstadt, the location of their institute. The IUPAC/IUPAP Joint Working Party (JWP) recognised the GSI team as discoverers in their 2001 report, giving them the right to suggest a name for the element. Using Mendeleev's nomenclature for
Otto Hahn (ship) Hahn, the German chemist and Nobel prize winner, who discovered the nuclear fission of uranium in 1938. The first captain of the "Otto Hahn" was Heinrich Lehmann-Willenbrock, a German U-boat ace of World War II. In 1968, the ship's 38-megawatt nuclear reactor was taken critical and sea trials began. In October of that year, NS "Otto Hahn" was certified for commercial freight transport and research. Configured to carry passengers and ore, "Otto Hahn" made her first port call in Safi, Morocco, loading a cargo of phosphate ores, in 1970. In 1972, after four years of operation, her reactor was refuelled.