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Jefferson Lab's Center for Injectors and Sources

CIS members are (l to r) Matt Poelker (Group Leader), Joe Grames, Bubba Bullard, Marcy Stutzman, Scott Windham, Shukui Zhang, Carlos Hernandez-Garcia, Phil Adderley, Riad Suleiman.

Mission: To design, build and maintain high performance particle beam sources for injectors and accelerators. Our core responsibility is the operation of the polarized electron source for the 12 GeV Continuous Electron Beam Accelerator Facility (CEBAF). Additionally, we operate sources and injectors for the 170 MeV Low Energy Research Facility (LERF), the 10 MeV Upgrade Injector Test Facility (UITF), and the 500 keV Gun Test Stand (GTS). Our research interests aim at the production of spin polarized electron and positron beams, magnetized beams and beams with orbital angular momentum. Our work specializes in extreme high vacuum chambers and diagnostics, very high voltage power supplies and electrodes, high power and radio-frequency lasers, robust and efficient photocathodes, and precision polarimetry.