Performance of the photoinjector accelerator for the Los Alamos free-electron laser

Author

O´Shea, P.G. ; Bender, S.C. ; Carlsten, B.E. ; Early, J.W. ; Feldman, D.W. ; Feldman, R.B. ; Johnson, W.J.D. ; Lumpkin, A.H. ; Sheffield, R.L. ; Springer, R.W. ; Stein, W.E. ; Young, L.M.

Author_Institution

Los Alamos Nat. Lab., NM, USA

fYear

1991

fDate

6-9 May 1991

Firstpage

2754

Abstract

The Los Alamos free-electron laser (FEL) facility has been modified by the replacement of the thermionic electron gun and bunchers with a 1300-MHz RF photoinjector. Two more accelerator tanks have been added to increase the beam energy to 40 MeV. Preliminary studies at 15 MeV have demonstrated excellent beam quality with a normalized emittance of 40 pi mm-mrad. The beam quality is sufficient to allow harmonic lasing in the visible. FEL experiments have been begun at a wavelength near 3 mu m. A report is presented of the performance of the photoinjector accelerator.<>

Keywords

electron accelerators; free electron lasers; linear accelerators; wigglers; 1.3 GHz; 15 MeV; 3 micron; 40 MeV; FEL experiments; Los Alamos free-electron laser; RF photoinjector; accelerator tanks; beam quality; harmonic lasing; photoinjector accelerator; Acceleration; Cathodes; Electron optics; Free electron lasers; Laser beams; Optical amplifiers; Optical resonators; Oscillators; Radio frequency; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-7803-0135-8

Type

conf

DOI

10.1109/PAC.1991.165266

Filename

165266