论文信息 - A Design of a 3rd Harmonic Cavity for the TTF 2 Photoinjector

A Design of a 3rd Harmonic Cavity for the TTF 2 Photoinjector

A design of a superconducting 3.9 GHz cavity for the injector of the TTF FEL-User Facility is presented. The cavity will be located after the first TESLA module with eight 1.3 GHz cavities and before the first bunch compressor. The purpose of the cavity is to cancel nonlinear distortions in the longitudinal phase space due to the cosine-like curvature of the 1.3 GHz accelerating cavity voltage. The basic cavity rf parameters and the properties of the higher order modes calculated with several computer codes are shown.

Thomas Weiland | Jacek Sekutowicz | Wolfgang Franz Otto Müller | Rainer Wanzenberg

[1] T. Weiland,et al. Single bunch energy spread in the TESLA cryomodule , 1999 .

[2] T. Weiland. On the Numerical Solution of Maxwell''s Equations and Applications in the Field of Accelerator Physi , 1984 .

[3] T. Limberg,et al. Generation of ultrashort bunches by cancellation of nonlinear distortions in the longitudinal phase space , 2001 .

[4] T. Weiland,et al. Wake fields and impedances , 1992 .

[5] E. al.,et al. Superconducting TESLA cavities , 2000, physics/0003011.

[6] Karl L. Brown,et al. Transport: A Computer Program for Designing Charged Particle Beam Transport Systems , 1970 .

[7] J. Sekutowicz. 2D FEM Code with Third Order Approximation for RF Cavity Computation , 1994 .