The Cavity BPM for the microwave measurement of the transversal position of relativistic electron bunches travelling in a vacuum beampipe

Author

Dal Forno, Massimo ; Vescovo, Roberto ; Craievich, Paolo ; De Monte, R. ; Borden, T. ; Borga, A. ; Predonzani, M. ; Ferianis, M.

Author_Institution

Dept. of Ind. Eng. & Inf. Technol., Univ. of Trieste, Trieste, Italy

fYear

2011

fDate

12-16 Sept. 2011

Firstpage

706

Lastpage

709

Abstract

The free electron laser (FEL) is a fourth-generation light source based on the interaction between electromagnetic fields and ultra-relativistic electron bunches which travel along the axis of a vacuum beampipe. The Cavity Beam Position Monitor (Cavity BPM) is a new kind of diagnostic tool for measuring the beam displacement from the beampipe axis. At the “Sincrotrone Trieste S.C.p.A.”, Italy, a seeded FEL, presently under development for the FERMI@Elettra project [1], will provide an ultra bright coherent X-ray light which will be employed for the study of chemical reactions and dynamic molecular processes. This paper presents the Cavity BPM and a new measurement system, with the first resolution assessment.

Keywords

free electron lasers; microwave measurement; particle beam bunching; particle beam diagnostics; beam displacement; beam position monitor; cavity BPM; chemical reactions; diagnostic tool; dynamic molecular processes; free electron laser; light source; microwave measurement; relativistic electron bunches; transversal position; ultrabright coherent X-ray light; vacuum beampipe; Cavity resonators; Electron beams; Magnetic resonance; Magnetic separation; Measurement by laser beam; Microwave measurements; Position measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics in Advanced Applications (ICEAA), 2011 International Conference on

Conference_Location

Torino

Print_ISBN

978-1-61284-976-8

Type

conf

DOI

10.1109/ICEAA.2011.6046429

Filename

6046429