STELLA-II: demonstration of monoenergetic laser acceleration

Author

Kimura, W.D. ; Campbell, L.P. ; Dilley, C.E. ; Gottschalk, S.C. ; Quimby, D.C. ; Babzien, M. ; Ben-Zvi, I. ; Gallardo, J.C. ; Kusche, K.P. ; Pogorelsky, I.V. ; Skaritka, J. ; Yakimenko, V. ; Zhou, F. ; Cline, D.B. ; Steinhauer, L.C. ; Pantell, R.H.

Author_Institution

STI Optronics, Bellevue, WA, USA

Volume

3

fYear

2003

fDate

12-16 May 2003

Firstpage

1909

Abstract

Monoenergetic laser acceleration of trapped microbunches has been demonstrated for the first time. An inverse free electron laser (IFEL) is used to create microbunches, which are then accelerated by a second IFEL using a tapered undulator. An adjustable magnetic field chicane is located between the two IFELs and is used to control the phase of the microbunches with respect to the laser field in the second IFEL. The IFELs are driven by a single laser beam from a high peak power CO₂ laser. During the experiment, the trapped portion of the microbunch electrons had an energy gain of < 16% with an energy width of ∼ 0.86% (full width at half- maximum).

Keywords

collective accelerators; electron accelerators; free electron lasers; laser beam applications; particle beam bunching; wigglers; IFEL; STELLA-II; adjustable magnetic field chicane; high peak power CO₂ laser; inverse free electron laser; laser field; microbunch electrons; microbunches phase; monoenergetic laser acceleration; single laser beam; tapered undulator; trapped microbunches; Acceleration; Electron beams; Electron traps; Free electron lasers; Laboratories; Laser beams; Optical control; Particle beams; Power lasers; Undulators;

fLanguage

English

Publisher

ieee

Conference_Titel

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

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1288717

Filename

1288717