EXPERIMENTAL and THEORETICAL RESEARCH
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| 1. Non-stationary current-carrying plasma | ||
| passive plasma sources: explosive emission plasma sources, flashover plasma sources, multi-capillary plasma sources |
active plasma cathodes: hollow cathode and hollow anode plasma sources, ferroelectric plasma source |
Hollow cathode plasma sources for space applications. |
| 2. Non-ideal plasma studies using underwater electrical wire explosion. | ||
| 3. Generation of strong converging shock waves and extreme state of water using underwater cylindrical wire array explosion. | ||
| 4. Research of Run Away Electrons generation in pressurized gas high voltage and high current electrical discharges. | ||
| 5. Influence of the cathode and anode plasma dynamics on generation of high power microwaves in relativistic magnetron and vircator. | ||
| 6. Physical processes accompanying high-power ion/electron beam generation. | ||
| 7. Design and development of high-power generators, electric probes, nuclear activation methods, laser, optical and spectroscopic measurements. | ||
EXPERIMENTAL SETUPS and FASILITIES
P&PPL consists of 4 experimental laboratories with total laboratory space of around 400 m2.
P&PPL is equipped by several pulsed power generators with output power up to 1010 W, stored energy up to 10 kJ operating in sub-nanosecond – microsecond time scales, in single and rep-rate modes.
In experimental research different time- and space-resolved electrical, optical, spectroscopic, laser interferometry, Thomson scattering, laser induced fluorescence and X-ray diagnostics are used
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Dr. Joseph Gleizer & Ph.D. students Vlad Vekselman, Shurik Yatom, Tal Kweller | |
| Nanosecond high-voltage PFN generator 300kV, 3kA, 250ns Repetition rate: single mode – up to 10 Hz. |
This pulsed power generator is using in experiments with various types of plasma cathodes (ferroelectric plasma sources, carbon and velvet cathodes, multi-capillary cathodes, metal-ceramic cathodes, etc.) for generation of relativistic high-current electron beams in different type of diodes with and without magnetic insulation. | |
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Dr. Joseph Gleizer, Dr. Dmitry Levko & Ph.D. students Shurik Yatom and Vlad Vekselman | |
| Sub-nanosecond all solid state 200kV, 1kA, 20ns; 200kV, 1kA, 5ns; 100kV, 1kA, 1ns. Repetition rate: single mode – up to 50 Hz. |
This pulsed power generator is using in experiments with Run-Away-Electrons (RAE) generation during pressurized gas discharge. Obtained experimental data concerning the energy spectrum of RAE for various experimental conditions are compared with results of Particle-in-Cell simulations. | |
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Dr. Dmitri Levko and Ph.D. students Vladislav Vekselman, George Mizrachi | |
| Experimental setup equipped by cryogenic pump with large vacuum chamber and different electrical, optical and spectroscopic diagnostics for research of Hollow Cathodes for space propulsion applications. Particular, we are carrying research of novel type of heaterless Hollow Cathodes with improved parameters. |
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Prof. Victor Gurovich, Dr. Sergey Efimov, Mrs. Galina Bazalitski, Ph.D. students: Danny Sheftman, Alexander Fedotov-Gefen, M.Sc. students: Leonid Gilburd, Daniel Shafer and Oleg Antonov | |
| Microsecond timescale pulsed current generator: 30kV, 350kA, 1µs Sub-microsecond timescale pulsed current generator: 100kV, 850kA, 350ns. Nanosecond timescale coaxial water forming line generator: 140kV, 80kA, 60ns. |
These pulsed current generators are used for research of properties of non-ideal plasma during underwater electrical wire explosions and for generation of strong shock waves and extreme state of water produced by underwater electrical cylindrical wire array explosion. Obtained experimental data regarding plasma parameters are compared with the results of MHD simulations coupled with EOS. Pressure up to 5 Mbar was obtained in the water in the vicinity of the implosion axis. |
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Dr. Arkadii Sayapin, Dr. Anatolii Shlapakovski and Dr. Yurii Bliokh Ph.D. students: Yoav Hadas and Tal Kweller | |
| All solid state Linear Induction Accelerator: 500kV, 5kA, 150ns. Repetition rate: single mode – up to 50Hz. Sub-microsecond pulsed power generator: 500 kV, 25 kA, 500 ns. |
These pulse power generators we are using for research of cathode and anode plasma dynamics and plasma influence on the efficiency of the microwave generation in relativistic S-band magnetron and double gap vircator. | |
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These investigations are carried out our M.Sc. and Ph.D. students under assistance of researcher Mrs. Svetlana Gleizer | |
| In this laboratory we are carrying out different investigations: a. Research of channel-spark gap electron gun: 20keV, 2kA, 15kA/cm2, 10Hz for evaporation of different materials b. Research of Plasma window: Pressure gradient 50 – 10-2 Torr. c. Forevacuum dc e-gun: 20 keV, 0.3 A. |
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| Each laboratory is equipped by control rooms and shielding Faraday rooms where the most sensitive digitizing oscilloscopes and other diagnostics are placed. | ||
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| In the research we are receiving continuous professional support of our skilled engineers: Mr. Andrey Levin and Mr. Kalman Gruzinskii. |
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| For planning of experiments, data analyzing and papers and reports writing each member of our laboratory has his own place and individual PC. | ||