Sung-Woo Lee RF Engineer Contact lees1@ornl.gov All Publications Design and fabrication of the waveguide Iris couplers for the Spallation Neutron Source drift tube linac... High Power Radiofrequency Operation of the Radiofrequency Quadrupoles in the Spallation Neutron Source Design Enhancements for the SNS RFQ Coaxial Coupler... SNS Warm Linac Circulator Breakdown Considerations for the PPU Project... Multipacting Analysis of Warm Linac RF Vacuum Windows... The Spallation Neutron Source Normal Conducting Linac RF System Design for the Proton Power Upgrade Project... Final Design Report Proton Power Upgrade Project... Design and performance of a superconducting neutron resonance spin flipper... RF AND THERMO-MECHANICAL CONSIDERATIONS IN DESIGNING THE WAVEGUIDE IRIS COUPLER FOR THE DRIFT TUBE LINAC IN THE ORNL SPALLATI... New controller for high voltage converter modulator at spallation neutron source... Consideration on Determination of Coupling Factors of Waveguide Iris Couplers... In-situ plasma processing to increase the accelerating gradients of SRF cavities... In-situ plasma processing to increase the accelerating gradients of superconducting radio-frequency cavities INITIAL COMMISSIONING EXPERIENCE WITH THE SPALLATION NEUTRON SOURCE VERTICAL TEST AREA RF SYSTEM... RF Distribution System for High Power Test of the SNS Cryomodule... HIGH POWER RF DISTRIBUTION AND CONTROL FOR MULTI-CAVITY CRYOMODULE TESTING... COMPUTER SIMULATIONS OF WAVEGUIDE WINDOW AND COUPLER IRIS FOR PRECISION MATCHING... STATUS OF THE OAK RIDGE SPALLATION NEUTRON SOURCE (SNS) RF SYSTEMS *... Spallation Neutron Source LLRF Temperature Dependence and Solution... SPALLATION NEUTRON SOURCE HIGH-POWER PROTECTION MODULE TEST STAND... Computer simulations for rf design of a Spallation Neutron Source external antenna H− ion source... rf improvements for Spallation Neutron Source H-ion source... Key Links Curriculum Vitae ORCID Organizations Neutron Sciences Directorate