Optimization of the NLC final focus system

Author

Zimmermann, E. ; Helm, R. ; Irwin, J.

Author_Institution

Linear Accel. Center, Stanford Univ., CA, USA

Volume

2

fYear

1995

fDate

1-5 May 1995

Firstpage

710

Abstract

An optimization scheme for final focus systems is discussed and applied to the NLC design. The optical functions at the defocusing sextupoles, the sextupole strength, and the length of the system must obey eight conditions that are imposed by the spot size increase due to higher-order aberrations, the effects of synchrotron radiation in the bending magnets, power supply ripple, magnet vibration tolerances, and the estimated orbit stability at the sextupoles. These eight conditions determine the minimum optimum length of the system. The NLC final focus design was shortened to this optimum

Keywords

colliding beam accelerators; electron accelerators; electron beam focusing; linear colliders; optimisation; particle beam stability; NLC; bending magnets; defocusing sextupoles; final focus system; higher-order aberrations; length; magnet vibration tolerances; minimum optimum length; optical functions; optimization; orbit stability; power supply ripple; sextupole strength; spot size; synchrotron radiation; Contracts; Design optimization; Hydrogen; Linear accelerators; Magnets; Power supplies; Stability; Synchrotron radiation; Telescopes; Vibrations;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1995., Proceedings of the 1995

Conference_Location

Dallas, TX

Print_ISBN

0-7803-2934-1

Type

conf

DOI

10.1109/PAC.1995.504766

Filename

504766