Sikkeland, Torbjorn

Albert Ghiorso ( 1915) together with Torbjorn Sikkeland, Almon Larsh, and Robert M. Latimer obtained the element by bombarding californium 1 with boron ions. 

Three groups had roles in the discovery of nobelium. First, scientists at the Nobel Institute of Physics in Stockholm, Sweden, used a cyclotron to bombard Cu-244 with heavy carbon gC-13 (which is natural carbon-12 with one extra neutron). They reported that they produced an isotope of element 102 that had a half-life of 10 minutes. In 1958 the team at Lawrence Laboratory at Berkeley, which included Albert Ghiorso, Glenn Seaborg, John Walton, and Torbjorn Sikkeland, tried to duplicate this experiment and verify the results of the Nobel Institute but with no success. Instead, they used the Berkeley cyclotron to bombard cerium-... 

Lawrencium Lr 1961 (Berkeley, California) Almon E. Larsh, Torbjorn Sikkeland, Albert Ghiorso, and Robert Latimer (all American) 335... 

University of California at Berkeley researchers Glenn Seaborg, Albert Ghiorso, Torbjorn Sikkeland, and J. R. Walton prepare nobelium ( 102). 

Lawrencium 1961 Albert Ghiorso (U.S.), Torbjorn Sikkeland (U.S.), Almon Larsh (U.S.), and Robert Latimer (U.S.)... 

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