This picture was taken in 1981 at the University of Wisconsin 240 MeV Synchrotron "Tantulus." Wolfgang Eberhardt (foreground) was a postdoc in the group and is now a Professor at the Technical University of Berlin and Director of the BESSY II Synchrotron Facility in Berlin. Brian Tonner (far left) was a graduate student at the University of Pennsylvania and is now the Head of the Physics Department at the University of Central Florida.
Shown in the picture is one of three Toroidal Grating Monochromators designed and built in collaboration with IBM and the Synchrotron Radiation Center in Wisconsin. Key papers (more than 100 citations) that resulted from the work at Tantulus are:
The Orientation of CO Adsorbed on Ni(100), E.W. Plummer, C. Allyn and T. Gustafsson, Chem. Phys. Lett. 47, 127 (1977).
Partial Photoionization Cross Sections of N2 and CO using Synchrotron Radiation (E.W. Plummer, T. Gustafsson, D.E. Eastman and W. Gudat), Phys. Rev. A15, 2339 (1977).
The Effects on Photoemission of the Spatially Varying Photon Field at a Metal Surface, H.J. Levinson, E.W. Plummer and P.J. Feibelman, Phys. Rev. Lett. 43, 952 (1979).
Angle Resolved Photoemission Determination of the Band Structure and Multielectron Excitations in Ni, W. Eberhardt and E.W. Plumme), Phys. Rev. B21, 3245 (1980).
The Bonding of H to Ni, Pd and Pt Surfaces, W. Eberhardt, F. Greuter and E.W. Plummer, Phys. Rev. Lett. 46, 1085 (1981).
Three Dimensional Energy Band in Graphite and Lithium-Intercalated Graphite (Th. Fauster, F.J. Himpsel, J.E. Fischer and E.W. Plummer), Phys. Rev. Lett. 51, 430 (1983).
Experimental Band Structure of Na, E. Jensen and E.W. Plummer, Phys. Rev. Lett. 55, 1912 (1985).