Speaker
Louise Cowie
(ASTeC, STFC Daresbury Laboratory)
Description
The RUEDI RF photoinjector will have a 2.4 cell S-band gun producing electrons at 4 MeV. The gun is designed to operate at 1 kHz repetition rate. This will be achieved by a combination of RF over-coupling to reduce the pulse length, and an advanced water cooling system based on that of the CLARA 400 Hz photoinjector. The shorter pulse length is also intended to limit the dark current, along with operation at 70 MV/m, and the flat back plate cathode. The cell lengths are optimised to improve jitter cancellation performance, as well as to limit surface electric fields on the irises. The cavity is dual side-coupled into the middle cell with a racetrack coupling cell to reduce the quadrupole component, and has an RF probe on the final cell.
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Author
Louise Cowie
(ASTeC, STFC Daresbury Laboratory)
Co-authors
Anthony Gilfellon
(Cockcroft Institute)
Benjamin Hounsell
(Science and Technology Facilities Council)
Dr
Boris Militsyn
(Science and Technology Facilities Council)
Graeme Burt
(Lancaster University)
Julian McKenzie
(Science and Technology Facilities Council)
Suzanna Percival
(Science and Technology Facilities Council)