First lasing of the Israeli tandem electrostatic accelerator free electron laser

• Published in: Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167) Vol. 1; pp. 906 - 908 vol.1
• Main Authors: 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, N., Levin, L.A., Shahal, O.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 1997
• Subjects: Cameras; Cathodes; Coils; Electron accelerators; Electron beams; Electrostatics; Free electron lasers; Particle beams; Undulators; Voltage
• ISBN: 078034376X; 9780780343764
• DOI: 10.1109/PAC.1997.749877

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 (/spl lambda//sub w/=4.4 cm, N/sub w/=26) was located in the center of the accelerator, inside the positive HV terminal. The electron gun voltage was V/sub gun/=-43 kV and the terminal operating voltage V/sub term/=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 /spl mu/sec duration and 1200 W of power were obtained at intervals of 15 sec.