Browsing Office of the President (RIT) by Author "Antonsen, T."

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    • Experimental and numerical studies of sheet electron beam propagation through a planar wiggler magnet 

      Zhang, Ze-Xiang; Granatstein, Victor; Destler, William; Bidwell, Steven; Rodgers, J.; Cheng, S.; Antonsen, T.; Levush, B.; Radack, D. (IEEE, 1993-12)
      Detailed experimental studies on sheet relativistic electron beam propagation through a long planar wiggler are reported and compared with numerical simulations. The planar wiggler has 56 periods with a period of 9.6 ...

    • Experimental realization of millimeter-wave amplification by a sheet beam free electron laser 

      Zhang, Ze-Xiang; Destler, William; Granatstein, V.; Antonsen, T.; Levush, B.; Rodgers, J.; Cheng, S. (American Institute of Physics, 1994-03-14)
      We report an observation of millimeter-wave (94 GHz) amplification in a sheet beam, short period, planar wiggler: free electron laser amplifier. The observed gain is about 5 dB for a 530 keV, 4 A beam through a 54 cm ...

    • Free electron laser with small period wiggler and sheet electron beam: A Study of the feasibility of operation at 300 GHz with 1 MW CW output power 

      Booske, J.; Granatstein, Victor; Antonsen, T.; Destler, William; Finn, J.; Latham, P.; Levush, B.; Mayergoyz, I.; Radack, D.; Rodgers, J. (1989)
      The use of a small period wiggler (Cw < 1 cm) together with a sheet electron beam has been proposed as a low cost source of power for electron cyclotron resonance heating (ECRH) in magnetic fusion plasmas. Other potential ...

    • High-average-power CW FELs for application to plasma heating designs and experiments 

      Booske, J.; Granatstein, V.; Radack, D.; Antonsen, T.; Bidwell, S.; Carmel, Y.; Destler, William; Latham, O.; Levush, B.; Mayergoyz, I.; Zhang, Z. (IEEE, 1990)
      A short-period-wiggler (period - 1 cm), sheet-beam FEL has been proposed as a low-cost source of high-average-power (1 MW) millimeter-wave radiation for plasma heating and space-based radar applications. Recent calculations ...

    • Periodic magnetic focusing of sheet electron beams 

      Booske, J.; Basten, M.; Kumbasar, A.; Antonsen, T.; Bidwell, S.; Carmel, Y.; Destler, William; Granatstein, V.; Radack, D. (American Institute of Physics, 1994-05)
      Sheet electron beams focused by periodically cusped magnetic (PCM ) fields are stable against low-frequency velocity-shear instabilities (such as the diocotron mode). This is in contrast to the more familiar unstable ...

    • Propagation of wiggler focused relativistic sheet electron beams 

      Booske, J.; Destler, William; Segalov, Z.; Radack, D.; Rosenbury, E.; Rodgers, J.; Antonsen, T.; Granatstein, V.; Mayergoyz, I. (American Institute of Physics, 1988-02-09)
      A recent design concept for millimeter-wave free-electron lasers [J. Appl, Phys, 60, 521 ( 1986)] would require the stable propagation of a sheet electron beam through a narrow waveguide channel. Experimental results ...