Title :
Superconducting RF gun cavities for large bunch charges
Author :
Volkov, V. ; Floettmann, K. ; Janssen, D.
Author_Institution :
BINP SB RAS, Novosibirsk
Abstract :
The first electron beam of an RF gun with a 3.5 cell superconducting cavity is expected in July 2007 in FZD. This cavity has been designed for small bunch charges. In this paper we present the design of a similar cavity and of 1.5 cell gun cavities for large bunch charges. For a charge of 2.5 nC, which is the design value of the BESSY-FEL, and a bunch length of 21 ps a projected transverse emittance less then 1 pimu has been obtained (without thermal emittance).
Keywords :
accelerator RF systems; accelerator cavities; electron accelerators; electron beams; electron guns; linear accelerators; particle beam bunching; particle beam focusing; superconducting cavity resonators; BESSY-FEL; FZD; RF focusing; bunch charges; electron beam; linac; superconducting RF gun cavities; transverse emittance; Acceleration; Cathodes; Electron beams; Focusing; Guns; Lenses; Optical distortion; Optical pulses; Radio frequency; Surface emitting lasers;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4439973
