e-/e+ Accelerating structure with cyclic variation of azimuth asymmetry

Author

Krasnykh, Anatoly

Author_Institution

Stanford Linear Accel. Center, Menlo Park

fYear

2007

fDate

25-29 June 2007

Firstpage

3633

Lastpage

3635

Abstract

A classical electron/positron accelerating structure is a disk-loaded cylindrical waveguide. The accelerator structure here has azimuth symmetry. The proposed structure [1] contains a disk-loaded cylindrical waveguide where there is a periodical change of RF-field vs. azimuth. The modulation deforms the rf-field in such a manner that the accelerated particles undergo transverse focusing forces. The new class of accelerator structures covers the initial part of e+/e- linacs where a bunch is not rigid and additional transverse focusing fields are necessary. We discuss a bunch formation with a high transverse aspect ratio in the proposed structure and particularly in the photoinjector part of a linac.

Keywords

accelerator RF systems; circular waveguides; linear accelerators; particle beam bunching; particle beam injection; RF-field; azimuth symmetry; bunch formation; classical electron-positron accelerating structure; disk-loaded cylindrical waveguide; electron-positron linacs; photoinjector; transverse focusing forces; Acceleration; Azimuth; Electron beams; Ion accelerators; Iris; Linear accelerators; Optical surface waves; Particle accelerators; Positrons; Proton accelerators;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2007. PAC. IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

978-1-4244-0916-7

Type

conf

DOI

10.1109/PAC.2007.4440516

Filename

4440516