Abstract
This article presents results of theoretical and experimental studies on the production of ultrashort (a few RF cycles duration) microwave pulses of gigawatt peak powers based on superradiance from high-current electron beams. With the Cherenkov backward-wave-electron-beam interaction in a low-dispersion slow-wave structure, microwave pulses with a peak power greater than the peak power of the driving electron beam have been produced for the first time. In an experiment using the SINUS-150 compact high-current electron accelerator, with a 2.6-kA injected beam current and a 330-kV electron energy, microwave pulses of 1.2 GW peak power and ∼0.5 ns duration (FWHM) were generated in the X-band. Production of superradiance pulses in a repetitive regime (3500 Hz) in the Ka-band has been demonstrated using a compact hybrid SOS-modulator. The effect of spatial accumulation of microwave energy in extended slow-wave structures with substantially nonuniform coupling has been demonstrated. In an experiment using the SINUS-200 compact accelerator, X-band pulses of ∼3 GW peak power and 0.6-0.7 ns width (FWHM) were produced with a power conversion efficiency of 150-180% and an energy efficiency of ∼15%.
| Original language | English |
|---|---|
| Pages (from-to) | 187-196 |
| Number of pages | 10 |
| Journal | Laser and Particle Beams |
| Volume | 21 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2003 |
| Externally published | Yes |
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Keywords
- BWO
- Compact accelerator
- High-efficiency short-pulse HPM source
- Repetitive HPM source
- Superradiance
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Surfaces and Interfaces
Cite this
Production of short microwave pulses with a peak power exceeding the driving electron beam power. / Eltchaninov, Anton A.; Korovin, Sergei D.; Rostov, Vladislav V.; Pegel, Igor V.; Mesyats, Gennady A.; Rukin, Sergei N.; Shpak, Valery G.; Yalandin, Michael I.; Ginzburg, Naum S.
In: Laser and Particle Beams, Vol. 21, No. 2, 2003, p. 187-196.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Production of short microwave pulses with a peak power exceeding the driving electron beam power
AU - Eltchaninov, Anton A.
AU - Korovin, Sergei D.
AU - Rostov, Vladislav V.
AU - Pegel, Igor V.
AU - Mesyats, Gennady A.
AU - Rukin, Sergei N.
AU - Shpak, Valery G.
AU - Yalandin, Michael I.
AU - Ginzburg, Naum S.
PY - 2003
Y1 - 2003
N2 - This article presents results of theoretical and experimental studies on the production of ultrashort (a few RF cycles duration) microwave pulses of gigawatt peak powers based on superradiance from high-current electron beams. With the Cherenkov backward-wave-electron-beam interaction in a low-dispersion slow-wave structure, microwave pulses with a peak power greater than the peak power of the driving electron beam have been produced for the first time. In an experiment using the SINUS-150 compact high-current electron accelerator, with a 2.6-kA injected beam current and a 330-kV electron energy, microwave pulses of 1.2 GW peak power and ∼0.5 ns duration (FWHM) were generated in the X-band. Production of superradiance pulses in a repetitive regime (3500 Hz) in the Ka-band has been demonstrated using a compact hybrid SOS-modulator. The effect of spatial accumulation of microwave energy in extended slow-wave structures with substantially nonuniform coupling has been demonstrated. In an experiment using the SINUS-200 compact accelerator, X-band pulses of ∼3 GW peak power and 0.6-0.7 ns width (FWHM) were produced with a power conversion efficiency of 150-180% and an energy efficiency of ∼15%.
AB - This article presents results of theoretical and experimental studies on the production of ultrashort (a few RF cycles duration) microwave pulses of gigawatt peak powers based on superradiance from high-current electron beams. With the Cherenkov backward-wave-electron-beam interaction in a low-dispersion slow-wave structure, microwave pulses with a peak power greater than the peak power of the driving electron beam have been produced for the first time. In an experiment using the SINUS-150 compact high-current electron accelerator, with a 2.6-kA injected beam current and a 330-kV electron energy, microwave pulses of 1.2 GW peak power and ∼0.5 ns duration (FWHM) were generated in the X-band. Production of superradiance pulses in a repetitive regime (3500 Hz) in the Ka-band has been demonstrated using a compact hybrid SOS-modulator. The effect of spatial accumulation of microwave energy in extended slow-wave structures with substantially nonuniform coupling has been demonstrated. In an experiment using the SINUS-200 compact accelerator, X-band pulses of ∼3 GW peak power and 0.6-0.7 ns width (FWHM) were produced with a power conversion efficiency of 150-180% and an energy efficiency of ∼15%.
KW - BWO
KW - Compact accelerator
KW - High-efficiency short-pulse HPM source
KW - Repetitive HPM source
KW - Superradiance
UR - http://www.scopus.com/inward/record.url?scp=0344897131&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0344897131&partnerID=8YFLogxK
U2 - 10.1017/S0263034603212064
DO - 10.1017/S0263034603212064
M3 - Article
AN - SCOPUS:0344897131
VL - 21
SP - 187
EP - 196
JO - Laser and Particle Beams
JF - Laser and Particle Beams
SN - 0263-0346
IS - 2
ER -