On the IFEL experiment at the UCLA Neptune Lab

Author

Musumeci, P. ; Pellegrini, C. ; Rosenzweig, J.B. ; Varfolomeev, A. ; Tolmachev, S. ; Yarovoi, T.

Author_Institution

Dept. of Phys., California Univ., Los Angeles, CA, USA

Volume

5

fYear

2001

fDate

2001

Firstpage

4008

Abstract

We present an inverse free electron laser accelerator proposed for construction at the UCLA Neptune Lab. This experiment will use a 1TW CO ₂ laser to accelerate through two strongly tapered undulators an electron beam from 16 MeV up to 55 MeV. The scheme proposed is the diffraction dominated IFEL interaction. The Raleigh range of the laser beam is about 2 cm, much shorter than the interaction length (the undulator length is 50 cm). In this regime adiabatic capture is possible in the first part of the undulator. In the focus region, we propose a solution to the problem of the dephasing between electrons and photons due to the Guoy phase shift. Ponderomotive effects and implications for tolerances are also studied

Keywords

free electron lasers; gas lasers; particle beam dynamics; wigglers; 1 TW; 16 to 55 MeV; 50 cm; CO₂; CO₂ laser; Guoy phase shift; IFEL; UCLA Neptune Lab; dephasing; inverse free electron laser accelerator; ponderomotive effects; tolerances; undulators; Acceleration; Electron beams; Free electron lasers; Laboratories; Laser beams; Magnetic fields; Particle accelerators; Particle beams; Structural beams; Undulators;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

Conference_Location

Chicago, IL

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.988327

Filename

988327