Thomas J Shea Contact SHEATJ1@ORNL.GOV All Publications Small Gas Bubble Experiment for Mitigation of Cavitation Damage and Pressure Waves in Short-pulse Mercury Spallation Targets A Hybrid Reflective/Refractive/Diffractive Achromatic Fiber-Coupled Radiation Resistant Imaging System for Use in the Spallation Neutron Source (SNS) SNS TARGET BEAM PROFILE VIEWSCREEN DESIGN AND OPERATION