Now showing items 61-80 of 144

    • Experimental study of millimeter wave radiation from a rotating electron beam in a rippled magnetic field 

      Destler, William; Aghamir, F.; Boyd, D.; Bekeli, G.; Shefer, R.; Yin, Y. (American Institute of Physics, 1985-06)
      The generation of millimeter wave radiation from the interaction of a rotating electron beam (2 MeV, I kA, 5 nsec) with an azimuthally periodic wiggler magnetic field has been studied experimentally. Calculations of the ...
    • Intense relativistic electron beam propagation in evacuated drift tubes 

      O'Shea, P.; Welsh, D.; Destler, William; Striffler, D. (American Institute of Physics, 1984-06)
      The propagation ofa magnetically confined intense relativistic electron beam (IREB) (I MeV, 27 kA, 20 ns FWHM) in vacuum drift tubes has been studied experimentally and theoretically. Experimental results for current ...
    • Study of collective ion acceleration in vacuum 

      Destler, William; Uhm, H.; Kim, H.; Reiser, M. (American Institute of Physics, 1979-05)
      Theoretical and experimental studies of the collective acceleration of ions by a linear electron beam in an evacuated drift tube are presented. A one-dimensional theoretical model of the collective acceleration process ...
    • Studies of the helix controlled beam front accelerator concept 

      Destler, William; O'Shea, P.G.; Reiser, M.; Striffler, C.D.; Welsh, D.; Fleischmann, H.H. (IEEE - Transactions on Nuclear Science, 1983-08)
      Helix controlled collective ion acceleration involves the use of a helical slow wave structure to control the propagation velocity of an intense relativistic electron beam front, in which ions could be trapped and accelerated ...
    • High power microwave generation from rotating e-layers in magnetron-type conducting boundary systems 

      Striffler, C.D.; Destler, William; Kulkarni, R.; Weiler, R.L. (IEEE - Transactions on Nuclear Science, 1983-08)
      Studies of the production of microwave and millimeter wave radiation at high harmonics of the relativistic electron cyclotron frequency by the interaction of a rotating E-layer with a multiresonator magnetron boundary ...
    • Collective acceleration of heavy ions 

      Destler, William; Floyd, L.; Reiser, M. (American Physical Society, 1980-01-14)
      Results of experiments on the collective acceleration of H, He, N, Ne, Ar, and Kr ions with an intense relativistic electron beam (1.5 MeV, 30 kA, 30 ns) are reported. Using time-of-flight diagnostics, we found that the ...
    • Collective acceleration of light and heavy ions 

      Destler, William; Floyd, L.; Cremer, J.; Parsons, C.; Reiser, M.; Rudmin, J. (Institute of Electrical and Electronics Engineers, 1981-06)
      The collective acceleration of ions (H, D, He, C, N, Ne, Al, Ar, Fe, Cu, Xe) from a well localized plasma immediately downstream of a relativistic electron beam diode is experimentally investigated. The ions are produced ...
    • Collective acceleration of laser produced ions 

      Cremer, J.; Destler, William (Institute of Electrical and Electronics Engineers, 1983-08)
      Experimental studies of the collective acceleration of laser produced ions have been conducted. An intense relativistic electron beam (1 MeV, 30 kA, 30 ns) is emitted from a 4 mm diameter tungsten cathode and passes ...
    • Collective acceleration of laser-produced ions 

      Cremer, J.T.; Destler, William (IEEE - Transactions on Nuclear Science, 1983-08)
      Experimental studies of the collective acceleration of laser produced ions have been conducted. An intense relativistic electron beam (1 MeV, 30 kA, 30 ns) is emitted from a 4 mm diameter tungsten cathode and passes through ...
    • High power microwave generation from a large orbit gyrotron* 

      Lawson, W.; Destler, William; Striffler, C.D. (IEEE - Transactions on Nuclear Science, 1985-10)
      A study of the production of high power microwave radiation from a large orbit gyrotron in azimuthally periodic boundary systems has been conducted. Linear growth rates have been calculated for the 2¿ modes of magnetron-like ...
    • A High-power backward-wave oscillator driven by a relativistic electron beam 

      Kehs, Alan; Bromborsky, Alan; Ruth, B.G.; Graybill, S.E.; Destler, William; Carmel, Y.C.; Wang, M.C. (IEEE - Transactions on plasma science, 1985-12)
      A high-power backward-wave oscillator (BWO) has been constructed that is driven by a relativistic electron beam (REB). A typical electron beam of 2-4 kA is accelerated across a diode potential of 650-800 kV and then guided ...
    • Studies of microwave radiation from a low-energy rotating electron beam in a multiresonator magnetron cavity 

      Chojnacki, E.; Destler, William; Lawson, W.; Namkung, W. (American institute of physics - Journal of applied physics, 1987-02-15)
      Presents a study on the generation of microwave radiation at high harmonics of the cyclotron frequency. Reasons for the interest in the configuration process; Theory of beam dynamics; Results of the experiments.
    • Experimental study of propagation of intense relativistic electron beams in nonconducting vacuum drift tubes after passage through a localized plasma source 

      Destler, William; O'Shea, P.G.; Segalov, Z. (American institute of physics - Journal of applied physics, 1987-04-01)
      Presents a study which examined the propagation of intense relativistic electron beams into evacuated nonconducting drift tubes after passage through a localized plasma source. Details of the time-integrated photographs ...
    • Second generation, high-power, fundamental mode large-orbit gyrotron experiments 

      Irwin, K.; Destler, William; Lawson, W.; Rodgers, J.; Scannell, E.; Spang, S. (American Institute of Physics, 1991-01-15)
      Experimental studies of a large-orbit gyrotron device operating at the fundamental of the cyclotron frequency have been conducted. Based on results of initial investigations at the University of Maryland a linear beam ...
    • A High-voltage triggered pseudospark discharge experiment 

      Ramaswamy, K.; Destler, William; Rodgers, J. (American Institute of Physics, 1996-11-01)
      The design and execution of a pulsed high-voltage (350–400 keV) triggered pseudospark discharge experiment is reported. Experimental studies were carried out to obtain an optimal design for stable and reliable pseudospark ...
    • Microwave generation in a high voltage triggered pseudospark discharge experiment 

      Ramaswamy, K.; Destler, William; Rodgers, J. (American Institute of Physics, 1998-04-01)
      A set of five experiments to study the microwave emission accompanying the high voltage pseudospark discharge are reported. The generation of the microwaves in all cases but one is attributed to electron beam-plasma ...
    • Electromagentic properties of corrugated and smooth waveguides filled with radially inhomogeneous plasma 

      Shkvarunets, A.; Kobayashi, S.; Weaver, J.; Carmel, Y.; Rodgers, J.; Antonsen, T. Jr; Granatstein, V.; Destler, William (Institute of Electrical and Electronics Engineers, 1996)
      No abstract found.
    • Design of a low-voltage, axially modulated, cusp-injected, third harmonic, x-band gyrotron amplifier experiment 

      Liu, Arnold; Lawson, Wes; Fernandez, Anna; Rodgers, John; Destler, William (Institute of Electrical and Electronics Engineers, 1997-11)
      We present the design of a prebunched, third harmonic small-orbit gyrotron experiment that utilizes a 45 kV, 8 A beam to produce over 185 kW of amplified power at 9.9 GHz in a 1.23 kG magnetic field. We detail the design ...
    • Experimental studies of overmoded relativistic backward-wave oscillators 

      Abe, David; Carmel, Yuval; Miller, Susanne; Bromborsky, Alan; Levush, Baruch; Antonsen, Thomas Jr; Destler, William (Institute of Electrical and Electronics Engineers, 1998-06)
      Internal field-emission breakdown in the electrodynamic structures of high-power microwave (HPM) devices can seriously limit the device’s output power and pulse duration. Increasing the diameter of the electrodynamic ...
    • High power high brightness electron beam generation in a pulse-line driven pseudospark discharge 

      Destler, William; Segalov, Z.; Rodgers, J.; Ramaswamy, K.; Reiser, M. (IEEE, 1993-05-17)
      High brightness (~3×1010 A/m2rad2 ), high power density (~1010 W/cm2) electron beams have been generated by the mating of a hollow-cathode discharge device operating in the pseudospark regime to the output of a high power ...