Hofmann, Sigurd

Hofmann, Sigurd. On Beyond Uranium Journey to the End of the Periodic Table. London Taylor and Francis, 2002. 

Shortly after element 110 was discovered in 1994, the team led by Peter Armbruster and Sigurd Hofmann at the Institute for Heavy Ion Research at Darmstadt, Germany, discovered element 111 using their SHIP detection apparatus. One might speculate that the ancient alchemists would be impressed by the production of element 111 by the transmutation of two... 

Dartnstadtium (Ununnilium) Ds or Uun 1994-95 (Berkeley, California) (Darmstadt, Germany) Dubna, Russia Darleane Fioffman (American) Peter Armbruster, Sigurd Hofmann (both German) Russian Team JINR 350... 

The Heavy Ion Research team in Darmstadt, under the leadership of Sigurd Hofmann, produces daimstadrium ( 110) and roent-genium ( 111). 

Named after Lise Meitner, element 109 was first prepared in 1982 by the team of Gottfried Miinzenberg, Peter Armbruster, Fritz Peter HeBberger, Sigurd Hofmann, Klaus Poppensieker, Willibrord Reisdorf, K. Schneider, Karl-Heinz Schmidt, Christoph-Clemens Sahm, and Detlef Vermeulen at the Gesellschaft fur Schwerionenforschung in Darmstadt, Germany. They bombarded bismuth with iron nuclei. After a week of bombardment, they produced one atom of element 109. The name meitnerium was accepted by IUPAC in 1997. 

Peter Armbruster, Sigurd Hofmann and their colleagues at the Gesellschaft fiir Schwerionenforschung in Darmstadt, Germany, discover the element ununbium. This is a temporary name. 

Ununbium 1996 Peter Armbruster, Sigurd Hofmann and colleagues at the GSI (Germany)... 

The element 110 was created in November 1994 at the Heavy Ion Research Laboratory, Darmstadt, by a team led by Sigurd Hofmann [52.20]. They used a Ni beam for bombardment of a 20Sp]j by nuclear fusion of lead and nickel in a heavy ion ac-... 

In 1994 an international research team led by Peter Armbruster and Sigurd Hofmann at the Institute for Heavy Ion Research, Darmstadt Germany, bombarded bismuth-209 atoms with nickel-64 ions. In an 18-day experiment three atoms were unambiguously identified as an isotope of element 111 with mass number 272. No name has yet been suggested for the element which is therefore called unununium, meaning element 111. 

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