Author: Einat, M.
Paper Title Page
TUP064 Narrow Linewidth, Chirp-Control and Radiation Extraction Optimization in an Electrostatic Accelerator FEL Oscillator 509
 
  • H. S. Marks, A. Gover, H. Kleinman, J. Wolowelsky
    University of Tel-Aviv, Faculty of Engineering, Tel-Aviv, Israel
  • D. Borodin, M. Einat, M. Kanter, Y. Lasser, Yu. Lurie
    Ariel University Center of Samaria, Faculty of Engineering, Ariel, Israel
 
  In re­cent years the elec­tro­sta­tic ac­cel­er­a­tor FEL based in Ariel has un­der­gone many up­grades. By vary­ing the ac­cel­er­at­ing po­ten­tial the res­onator al­lows las­ing be­tween 95-110 GHz. It is now pos­si­ble to re­motely con­trol the out­put re­flec­tiv­ity of the res­onator and thereby vary both the power built up in the res­onator and that emit­ted. This has al­lowed fine con­trol over the power for dif­fer­ent user ex­per­i­ments. A volt­age ramp­ing de­vice has been in­stalled at the res­onator/wig­gler to cor­rect drops in volt­age which occur due to elec­trons strik­ing the walls of the beam line. This has al­lowed sta­ble pulses of just over 50 μs with a chirp rate of ~80 kHz/μs.