Title :
First lasing of the Israeli tandem electrostatic accelerator free electron laser
Author :
Sokolowski, J.S. ; Abramovich, A. ; Arensburg, A. ; Chairman, D. ; Draznin, M. ; Eichenbaum, A.L. ; Gover, A. ; Kleinman, H. ; Pinhasi, Y. ; Yakover, Y.M. ; Rosenberg, A. ; Shiloh, J. ; Cohen, M. ; Levin, L.A. ; Shahal, O.
Author_Institution :
Dept. of Phys. Electron., Tel Aviv Univ., Israel
Abstract :
First lasing at 3 mm wavelength was achieved on December 4, 1996 in our FEL employing a modified EN-Tandem electrostatic accelerator as the source of energetic free electrons. A Pierce-type electron gun capable of providing a 2A beam was installed at the entrance to the accelerator and operated at 1.4 A level, while the wiggler (λw=4.4 cm, Nw=26) was located in the center of the accelerator, inside the positive HV terminal. The electron gun voltage was Vgun=-43 kV and the terminal operating voltage Vterm=1.4 MV. The resonator, consisting of a two parallel curved plates waveguide terminated by wave splitters at its both ends, was mounted inside the wiggler. Radiation pulses at 100.5 GHz of 2 μsec duration and 1200 W of power were obtained at intervals of 15 sec
Keywords :
electron accelerators; electron beam focusing; free electron lasers; particle beam diagnostics; particle beam injection; tandem accelerators; 1.4 MV; 100.5 GHz; 1200 W; 2 mus; 3 mm; 43 kV; FEL; Pierce-type electron gun; beam acceleration; diagnostics; electron gun voltage; focusing; injection; resonator; tandem electrostatic accelerator free electron laser; terminal operating voltage; wave splitters; Cameras; Cathodes; Coils; Electron accelerators; Electron beams; Electrostatics; Free electron lasers; Particle beams; Undulators; Voltage;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.749877
