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Pulsed Power Generators, Electron Accelerators

Applications of Electron and Ion Beams

Pulsed Power Engineering for NanoTechnology

New Lasers and Applications

Pulsed Power Generators, Electron Accelerators

SOS-BASED PULSED POWER GENERATOR

SOS-based Pulsed Power Generators



Pulsed Power Laboratory develops repetitive nanosecond generators with high peak and average power. The generators are based on the use of an all-solid-state switching system that includes thyristors or transistors as primary switches, magnetic switches in magnetic compression unit, and a semiconductor opening switch based on SOS diodes in the final power amplifier. The developed generators have the following range of output parameters: voltage pulse amplitude 50 kV to 1 MV, pulse current 1 to 10 kA, peak power 100 MW to 6 GW, pulse duration 3 to 60 ns, and pulse repetition frequency from hundreds Hz to units kHz.

The developed generators and semiconductor opening switches are used both in Russia and abroad. Since 1996, pulsed generators and opening switches have been supplied to 22 foreign organizations in the following countries: USA, China, UK, Japan, Germany, Israel, France, Korea, and India.



Generators are used in the following areas of electrophysics and high-current electronics:

  • High current E-beam and X-ray generators
  • Lasers pumping
  • Streamer corona discharge technologies
  • High-power microwaves


Generators are characterized by the following qualities:

  • All-solid-state switching system
  • High pulse repetition frequency
  • Very high stability of pulse shape in repetitive mode of operation
  • Long lifetime
  • Short and open circuits operating regime capability


SM-2N generator







SM-2N
(Base unit)
SM-2NS
(Short Pulse Version)
Output voltage, kV 100 Ц 150 100 Ц 250
Output current, kA 0.2 Ц 0.4 0.2 Ц 0.8
Pulse width (FWHM), ns 25 Ц 40 3 Ц 5
Pulse repetition frequency, Hz
Continuously
Burst (30 seconds)

300
3000

300
3000
Case dimensions, m 0.62 x 0.42 x 0.25 0.62 x 0.46 x 0.25
Mass, kg ~50 ~60
Table. Parameters of SM-2N and SM-2NS generators.




SM-3N generator





SM-3N
(Base unit)
SM-3NS
(Short Pulse Version)
Output voltage, kV 150 Ц 400 150 Ц 400
Output current, kA 1 Ц 3 1 Ц 3
Pulse width (FWHM), ns 20 Ц 30 5 Ц 7
Maximum peak power, MW 500 500
Pulse repetition frequency, Hz
Continuously
Burst (30 seconds)

300
2000

300
2000
Case dimensions, m 1.2 x 0.9 x 0.5 1.4 x 0.9 x 0.5
Mass, kg ~250 ~300
Table. Parameters of SM-3N and SM-3NS generators.




SM-6N generator





SM-6N
(Base unit)
SM-6NS
(Short Pulse Version)
Output voltage, kV 400 Ц 700 400 Ц 800
Output current, kA 1 Ц 2.5 1.5 Ц 4
Pulse width (FWHM), ns 25 Ц 30 8 Ц 10
Maximum peak power, GW 1.0 1.5
Pulse repetition frequency, Hz
Continuously
Burst (1 minute)

300
1000

300
1000
Case dimensions, m 3.0 x 0.7 x 0.7
Mass, kg ~1000
Table. Parameters of SM-6N and SM-6NS generators.




S-5N generator





S-5N
(Base unit)
S-5NS
(Short Pulse Version)
Output voltage, kV 300 Ц 1000 400 Ц 1000
Output current, kA 1 Ц 3 3 Ц 8
Pulse width (FWHM), ns 35 Ц 50 8 Ц 10
Maximum peak power, GW 2 4
Pulse repetition frequency, Hz
Continuously
Burst (30 seconds)

300
1000

300
1000
Case dimensions, m 3.5 x 1.4 x 1.1 4.5 x 1.4 x 1.1
Mass, kg ~2800 ~3500
Table. Parameters of S-5N and S-5NS generators.




S-500 generator





A new SOS pumping circuit based on a double forming line has been proposed and realized in the generator. The pumping circuit provides a reverse current increasing through the SOS up to 14 kA within ~12 ns. The SOS cuts off the current in ~2 ns. The output pulse rise time in the transmission line is shortened additionally by a ferrite sharpener to the value of ~1 ns, and by a semiconductor sharpener to ~0.5 ns. The generator has been developed for application in the field of high-power microwave electronics.



SOS pumping generator Base unit of the S-5N generator
SOS cutoff current, kA 14
Current cutoff time, ns 2
SOS breaking power, GW 13
External loads, Ω 40 Ц 120
Output voltage, kV 500 Ц 900
Load current, kA 7 Ц 12
Pulse duration (FWHM), ns 7
Peak power, GW 6
Pulse repetition frequency, Hz
Continuously
Burst (20 seconds)

200
1000
Case dimensions, m 4.8 x 1.4 x 1.1
Mass, kg ~3200
Design and programming N-Studio
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