Record high-average current from a high-brightness photoinjector

Bruce Dunham, John Barley, Adam Bartnik, Ivan Bazarov, Luca Cultrera, John Dobbins, Georg Hoffstaetter, Brent Johnson, Roger Kaplan, Siddharth Karkare, Vaclav Kostroun, Yulin Li, Matthias Liepe, Xianghong Liu, Florian Loehl, Jared Maxson, Peter Quigley, John Reilly, David Rice, Daniel SabolEric Smith, Karl Smolenski, Maury Tigner, Vadim Vesherevich, Dwight Widger, Zhi Zhao

Research output: Contribution to journalArticlepeer-review

149 Scopus citations


High-power, high-brightness electron beams are of interest for many applications, especially as drivers for free electron lasers and energy recovery linac light sources. For these particular applications, photoemission injectors are used in most cases, and the initial beam brightness from the injector sets a limit on the quality of the light generated at the end of the accelerator. At Cornell University, we have built such a high-power injector using a DC photoemission gun followed by a superconducting accelerating module. Recent results will be presented demonstrating record setting performance up to 65 mA average current with beam energies of 4-5 MeV.

Original languageEnglish (US)
Article number034105
JournalApplied Physics Letters
Issue number3
StatePublished - Jan 21 2013
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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