Boris Batterman, left, who retired recently as director of the Cornell High Energy Synchrotron Source (CHESS) after 19 years in that post, is congratulated by Gopal Shenoy of the Argonne National Lab, at an appreciation reception in Batterman's honor outside of Wilson Lab on Aug. 26. Shenoy was one of several noted participants at a symposium in Clark Hall earlier in the day, also in recognition of Batterman, the Walter S. Carpenter Jr. Professor of Engineering and professor of applied and engineering physics. Robert Barker/University Photography