Berkeley in the 1940's and the 184 Inch Cyclotron

Reactions for element 110.
Now I mention element 110. In 1991 Ghiorso and co-workers, of which I was a member of the team, produced an isotope which decayed with a half life of 4 microseconds, and identified it as due to element 110, announced it at a talk given in Italy in June 1994 and published later that year. There are other workers, including those at the GSI laboratory, who have found another isotope, and actually still another group that I won't have time to mention. So there are several co-discoverers of element 110 that doesn't have a name yet.


In 1940, there was a meeting at Berkeley with Lawrence and Arthur Compton, Vannevar Bush, Jim Conant, Karl Compton, and Alfred Loomis, that led to the funding for the 184-inch cyclotron.
Meeting in the Radiation Laboratory at the University of California, Berkeley (UCB) in March 1940 to discuss the 184-inch cyclotron. Left to right: Ernest O. Lawrence, Arthur H. Compton, Vannevar Bush, James B. Conant, Karl T. Compton, and Alfred Loomis. 184-inch cyclotron facility on October 23, 1941.
Here it is in 1941 as it is being built on the move from the campus up on the hill. This had a magnet of about 4,000 tons, something like that, and produced 200 MeV deuterons. It was used for a number of discoveries, including the discovery of the pi mesons produced artificially.
Ernest O. Lawrence, Glenn T. Seaborg, and J. Robert Oppenheimer in early 1946 at the controls to the magnet of the 184-inch cyclotron, which was being converted from its wartime use to its original purpose as a cyclotron.

Here we are at the control of the 184-inch cyclotron, Lawrence, Oppenheimer, and I in 1946.

Lawrence and the staff shown with the 184-inch magnet. Lawrence Radiation Laboratory (LBL), Berkeley, California view towards south. Visible in this picture is the 184-inch cyclotron building.

Here is the whole gang, I won't try to identify them, at about the time when it began to operate. Here is the building in which it was housed.