Abstract
The Paul Scherrer Institute (PSI) is developing an X-ray free electron laser (XFEL) [1] which relies on photo-assisted field emission and high gradient acceleration in a low emittance electron gun (LEG). The first phase of the LEG design incorporates a sub-microsecond 500 kV pulser, a high gradient acceleration diode structure and a diagnostic electron beam line. An air core (Tesla) transformer, in critically coupled mode [2], is generating 250 ns FWHM voltage pulse to give a high gradient between the mirror finished surfaces of the cathode and anode. The emitted electron beam passes to the diagnostic beam line through a 1.5 mm hole in the anode. The measured results are compared with numeric simulations. The timing and the amplitude stability of the pulser are discussed since they are sensitive parameters for this application.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
