Updating the periodic table. Ghiorso inscribes "Lw" in space 103; co-discoverers (left to right) Robert Latimer, Torbjorn Sikkeland, and Almon Larsh look on, April 1961. The first important work on element 103 was carried out at Berkeley by the nuclear-physics team of Albert Ghiorso, Torbjorn Sikkeland, Almon Larsh, Robert M. Latimer, and their co-workers on February 14, 1961. The first atoms of lawrencium were reportedly produced by bombarding a three-milligram target consisting of three isotopes of the element californium with boron-10 and boron-11 nuclei from the Heavy Ion Linear Accelerator (HILAC).