Beam based characterization of a new 7-pole superconducting wiggler at CESR

Author

Temnykh, A. ; Crittenden, J. ; Rice, D. ; Rubin, D.

Author_Institution

Lab. of Nucl. Studies, Cornell Univ., Ithaca, NY

Volume

5

fYear

2003

fDate

12-16 May 2003

Firstpage

3425

Lastpage

3427

Abstract

The paper describes the beam based measurements of the magnetic field characteristics of the first 7-pole superconducting wiggler recently installed in CESR. The results are compared with the model prediction and with the estimates based on magnetic field measurements. It also presents results of the beam resonance mapping which was done by a 2D scan of betatron tunes while recording vertical beam size. The scan clearly exposed resonances excited by the wiggler nonlinear magnetic field components. In conclusion, the ways to optimize the wiggler magnetic field in order to reduce destructive effects on beam dynamics are discussed

Keywords

electron accelerators; particle beam dynamics; storage rings; superconducting magnets; wigglers; 7-pole superconducting wiggler; CESR; beam dynamics; beam resonance mapping; betatron tunes; magnetic field characteristics; vertical beam size; wiggler nonlinear magnetic field components; Character generation; Extraterrestrial measurements; Laboratories; Magnetic field measurement; Magnetic resonance; Magnetic variables measurement; Optical coupling; Predictive models; Superconducting filaments and wires; Undulators;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

Conference_Location

Portland, OR

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1289936

Filename

1289936