A large aperture final focus system for TESLA

Author

Napoly, Olivier

Author_Institution

DAPNIA-SEA, Gif-sur-Yvette, France

fYear

1993

fDate

17-20 May 1993

Firstpage

632

Abstract

An alternative set of beam parameters at the IP is presented for TESLA. Thanks to a larger aspect ratio, it allows a substantial reduction of the beamstrahlung effect. The optics of a final focus system based on the standard sextupole correction of the chromatic aberrations is described. The particularity of this system is, along with the 3 m long last drift space, the large aperture of the last quadrupoles is possibly superconducting, which permits the clearance of the disrupted beams and beamstrahlung photons. Due to the large bunch separation in TESLA, head-on collisions are therefore possible with this system. Its energy acceptance and misalignment tolerances are analyzed

Keywords

aberrations; beam handling equipment; beam handling techniques; electron accelerators; electron optics; focusing; linear accelerators; TESLA; aspect ratio; beam parameters; beamstrahlung effect; bunch separation; chromatic aberrations; disrupted beams; electron optics; energy acceptance; head-on collisions; interaction point; large aperture final focus system; last drift space; last quadrupoles; misalignment tolerances; sextupole correction; superconducting accelerator; Apertures; Energy loss; Energy resolution; Linear particle accelerator; Particle beams; Stimulated emission; Synchrotron radiation;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1993., Proceedings of the 1993

Conference_Location

Washington, DC

Print_ISBN

0-7803-1203-1

Type

conf

DOI

10.1109/PAC.1993.308832

Filename

308832