Browsing Office of the President (RIT) by Author "Levush, B."
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Can plasma microwave devices revitalize and broaden the scientific and technological base of microwave sources?
Carmel, Y.; Antonsen, T. Jr; Levush, B.; Nusinovich, G.; Destler, William; Granatstein, V. (1994-06) -
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 development of a millimeter wave free electron laser
Radack, D.; Bidwell, S.; Antonsen, T. Jr; Carmel, Y.; Destler, William; Granatstein, V.; Latham, P.; Levush, B.; Mayergoyz, I.; Rodgers, J.; Zhang, Z. (SPIE, 1990-12)A 1 MW (cw), millimeter wave FEL (X, « 0.5 mm) is currently under development with an application for heating fusion plasmas. Two salient features of the FEL are the use of a short-period wiggler £w < 10 mm) electromagnet and ... -
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 ... -
Low-voltage, megawatt free-electron lasers at a frequency near 300 GHz
Booske, J.; Granatstein, V.; Antonsen, T. Jr; Destler, William; Levush, B.; Mayergoyz, I.; Radack, D.; Rodgers, J.; Rosenbury, E.; Segalov, Z.; Serbeto, A. (SPIE, 1988-01)Design procedures and beam transport feasibility experiments Il.re discussed for a novel, millimeter-wave free electron laser (FEL) concept employing short period magnetic undulators and a sheet electron beam. The ... -
Millimeter wave free electron laser amplifiers: Experiments and designs
Bidwell, S.; Zhang, Z.; Antonsen, T. Jr; Bensen, D.; Destler, William; Freund, H.; Granatstein, V.; Latham, P.; Levush, B.; Radack, D.; Rodgers, J. (1991-08)Free electron laser amplifiers are investigated as sources of high average-power (1 MW) millimeter to submillimeter wave radiation (200-600 GHz) for application to electron cyclotron resonance heating of magnetically ... -
Progress in high power millimeter-wave FELs with short period wigglers and sheet electron beams
Booske, J.; Radack, D.; Antonsen, T. Jr; Bidwell, S.; Destler, William; Granatstein, V.; Latham, P.; Levush, B.; Mayergoyz, L.; Serbeto, A.; Zhang, Z. (Institute of Electrical and Electronics Engineers, 1989-05) -
Relativistic backward wave oscillators: Theory and experiment
Levush, B.; Antonsen, T. Jr; Bromborsky, A.; Lou, W.; Abe, D.; Miller, S.; Carmel, Y.; Rodgers, J.; Granatstein, V.; Destler, William (IEEE, 1991)Microwave sources based on backward-wave oscillators with relativistic electron beams are capable of producing high power coherent radiation in the cm and mm wavelength regime. Although there have been a number of ... -
Relativistic plasma microwave electronics: Studies of high-power plasma-filled backward-wave oscillators
Carmel, Y.; Lou, W.; Antonsen, T. Jr; Rodgers, J.; Levush, B.; Destler, William (American Institute of Physics, 1992-07)The area of relativistic plasma microwave electronics has only recently generated renewed interest. New experimental data are presented demonstrating that the presence of a low-density background plasma in a relativistic ... -
A Short-period wiggler millimeter-wave free electron laser for plasma heating and space-borne radar
Booske, J.; Antonsen, T. Jr; Bengtson, D.; Bluem, H.; Destler, William; Finn, J.; Granatstein, V.; Latham, P.; Levush, B.; Mayergoyz, I.; Radack, D.; Rosenbury, E.; Serbeto, A. (1987-12)We will report on the status of a new mm-wave FEL research program based on short-period electromagnet wigglers and a low voltage (500 kV) sheet electron beam. Recent results of measurements and theoretical modeling ... -
Short-period-wiggler free electron lasers with sheet electron beams
Booske, J.; Antonsen, T. Jr; Bengston, D.; Destler, William; Granatstein, V.; Latham, P.; Levush, B.; Mayergoyz, I.; Radack, D.; Rosenbury, E. (Institute of Electrical and Electronics Engineers, 1988-06) -
Studies of relativistic backward wave oscillators: Comparison bewteen theory and experiment
Levush, B.; Antonsen, T. Jr; Bromborsky, A.; Lou, W.; Abe, D.; Miller, S.; Carmel, Y.; Rodgers, J.; Granatstein, V.; Destler, William (SPIE, 1992)Microwave sources based on backward-wave oscillators driven by relativistic electron beams are capable of producing high power coherent radiation in the cm and mm wavelength regime. Although there have been a number of ... -
Theoretical and experimental investigations of the cyclotron interaction effect on relativistic backward wave oscillator operation
Levush, B.; Vlasov, A.; Nusinovich, G.; Bromborsky, A.; Antonsen, T. Jr; Miller, S.; Abe, D.; Lou, W.; Carmel, Y.; Destler, William; Granatstein, V. (SPIE, 1993)Microwave sources based on backward-wave oscillators (BWOs) driven by relativistic electron beams are capable of producing high power coherent radiation in the cm and mm wavelength region. When the axial magnetic field is ...