Generation of powerful subnanosecond microwave pulses by intense electron bunches moving in a periodic backward wave structure in the superradiative regime

N S Ginzburg, N Y Novozhilova, I V Zotova, A S Sergeev, N Y Peskov, A D R Phelps, S M Wiggins, A W Cross, K Ronald, W He, V G Shpak, M I Yalandin, S A Shunailov, M R Ulmaskulov, V P Tarakanov

Research output: Contribution to journalArticle

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Abstract

Experimental results of the observation of coherent stimulated radiation from subnanosecond electron bunches moving through a periodic waveguide and interacting with a backward propagating wave are presented. The subnanosecond microwave pulses in Ka and W bands were generated with repetition frequencies of up to 25 Hz. The mechanism of microwave pulse generation was associated with self-bunching, and the mutual influence of different parts of the electron pulse due to slippage of the wave with respect to the electrons; this can be interpreted as superradiance. The illumination of a panel of neon bulbs resulted in a finely structured pattern corresponding to the excitation of the TM01 mode. Observation of rf breakdown of ambient air, as well as direct measurements by hot-carrier germanium detectors, leads to an estimate of the absolute peak power as high as 60 MW for the 390-ps pulses at 38 GHz. These results are compared with numerical simulations. The initial observation of 75-GHz, 10-15-MW radiation pulses with a duration of less than 150 ps is also reported. [S1063-651X(99)00709-6].

LanguageEnglish
Pages3297-3304
Number of pages8
JournalPhysical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume60
Issue number3
DOIs
Publication statusPublished - Sep 1999

Fingerprint

backward waves
Microwave
Electron
microwaves
pulses
electrons
Radiation
bulbs
Germanium
bunching
radiation
neon
Breakdown
Waveguide
Illumination
repetition
germanium
Excitation
breakdown
illumination

Keywords

  • superradiance
  • superradiant
  • BWO
  • electron beam
  • electron bunch
  • millimetre wave devices
  • millimeter sources
  • Ka-band
  • W-band

Cite this

Ginzburg, N S ; Novozhilova, N Y ; Zotova, I V ; Sergeev, A S ; Peskov, N Y ; Phelps, A D R ; Wiggins, S M ; Cross, A W ; Ronald, K ; He, W ; Shpak, V G ; Yalandin, M I ; Shunailov, S A ; Ulmaskulov, M R ; Tarakanov, V P . / Generation of powerful subnanosecond microwave pulses by intense electron bunches moving in a periodic backward wave structure in the superradiative regime. In: Physical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics . 1999 ; Vol. 60, No. 3. pp. 3297-3304.
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abstract = "Experimental results of the observation of coherent stimulated radiation from subnanosecond electron bunches moving through a periodic waveguide and interacting with a backward propagating wave are presented. The subnanosecond microwave pulses in Ka and W bands were generated with repetition frequencies of up to 25 Hz. The mechanism of microwave pulse generation was associated with self-bunching, and the mutual influence of different parts of the electron pulse due to slippage of the wave with respect to the electrons; this can be interpreted as superradiance. The illumination of a panel of neon bulbs resulted in a finely structured pattern corresponding to the excitation of the TM01 mode. Observation of rf breakdown of ambient air, as well as direct measurements by hot-carrier germanium detectors, leads to an estimate of the absolute peak power as high as 60 MW for the 390-ps pulses at 38 GHz. These results are compared with numerical simulations. The initial observation of 75-GHz, 10-15-MW radiation pulses with a duration of less than 150 ps is also reported. [S1063-651X(99)00709-6].",
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Generation of powerful subnanosecond microwave pulses by intense electron bunches moving in a periodic backward wave structure in the superradiative regime. / Ginzburg, N S ; Novozhilova, N Y ; Zotova, I V ; Sergeev, A S ; Peskov, N Y ; Phelps, A D R ; Wiggins, S M ; Cross, A W ; Ronald, K ; He, W ; Shpak, V G ; Yalandin, M I ; Shunailov, S A ; Ulmaskulov, M R ; Tarakanov, V P .

In: Physical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics , Vol. 60, No. 3, 09.1999, p. 3297-3304.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Generation of powerful subnanosecond microwave pulses by intense electron bunches moving in a periodic backward wave structure in the superradiative regime

AU - Ginzburg, N S

AU - Novozhilova, N Y

AU - Zotova, I V

AU - Sergeev, A S

AU - Peskov, N Y

AU - Phelps, A D R

AU - Wiggins, S M

AU - Cross, A W

AU - Ronald, K

AU - He, W

AU - Shpak, V G

AU - Yalandin, M I

AU - Shunailov, S A

AU - Ulmaskulov, M R

AU - Tarakanov, V P

PY - 1999/9

Y1 - 1999/9

N2 - Experimental results of the observation of coherent stimulated radiation from subnanosecond electron bunches moving through a periodic waveguide and interacting with a backward propagating wave are presented. The subnanosecond microwave pulses in Ka and W bands were generated with repetition frequencies of up to 25 Hz. The mechanism of microwave pulse generation was associated with self-bunching, and the mutual influence of different parts of the electron pulse due to slippage of the wave with respect to the electrons; this can be interpreted as superradiance. The illumination of a panel of neon bulbs resulted in a finely structured pattern corresponding to the excitation of the TM01 mode. Observation of rf breakdown of ambient air, as well as direct measurements by hot-carrier germanium detectors, leads to an estimate of the absolute peak power as high as 60 MW for the 390-ps pulses at 38 GHz. These results are compared with numerical simulations. The initial observation of 75-GHz, 10-15-MW radiation pulses with a duration of less than 150 ps is also reported. [S1063-651X(99)00709-6].

AB - Experimental results of the observation of coherent stimulated radiation from subnanosecond electron bunches moving through a periodic waveguide and interacting with a backward propagating wave are presented. The subnanosecond microwave pulses in Ka and W bands were generated with repetition frequencies of up to 25 Hz. The mechanism of microwave pulse generation was associated with self-bunching, and the mutual influence of different parts of the electron pulse due to slippage of the wave with respect to the electrons; this can be interpreted as superradiance. The illumination of a panel of neon bulbs resulted in a finely structured pattern corresponding to the excitation of the TM01 mode. Observation of rf breakdown of ambient air, as well as direct measurements by hot-carrier germanium detectors, leads to an estimate of the absolute peak power as high as 60 MW for the 390-ps pulses at 38 GHz. These results are compared with numerical simulations. The initial observation of 75-GHz, 10-15-MW radiation pulses with a duration of less than 150 ps is also reported. [S1063-651X(99)00709-6].

KW - superradiance

KW - superradiant

KW - BWO

KW - electron beam

KW - electron bunch

KW - millimetre wave devices

KW - millimeter sources

KW - Ka-band

KW - W-band

U2 - 10.1103/PhysRevE.60.3297

DO - 10.1103/PhysRevE.60.3297

M3 - Article

VL - 60

SP - 3297

EP - 3304

JO - Physical Review E

T2 - Physical Review E

JF - Physical Review E

SN - 1539-3755

IS - 3

ER -