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The aim of this paper is to examine the reliability of EPROM and EEPROM components under the influence of gamma radiation. This problem is significant for military industry and space technology. Total dose results are presented for the JL 27C512D EPROM and 28C64C EEPROM components. There is evidence that EPROM components have better radioactive reliability than EEPROM components. Also, the EPROM's...
The present paper describes a powerful electromagnetic radiation generator designed for tests of radioelectron systems for electromagnetic compatibility over the range of frequencies from unities of kilohertz to 65 MHz and energies from several millijoules to 1 kJ and over.
We have developed the high power laser beam combining system with the 10kW class chemical oxygen-iodine laser (COIL) of wavelength 1.315µm and the 6kW class Nd:YAG laser of wavelength 1.064µm. The characteristic of the beam propagation, the combining beam quality and the optics were evaluated. The combining beam providing power was up to over 16kW. The combining beam was used for laser welding of...
A new mechanism of a «Coulomb explosion» is proposed on the basis of a new model of the electron vortices in the plasma with the magnetic field, where ions are accelerated by the electric field arising due to the charge separation at the magnetic Debye radius rB ∼ B/4πene. The origin of such explosive dynamics is the formation of «holes» in the electron density at characteristic times of the order...
A compact high-current nanosecond accelerator has been designed and tested for experiments concerned with removal of toxic organic impurities from air. This accelerator provides the electron energy up to 400 keV, the beam current of 0.25 to 1.1 kA, the pulse length from 30 to 40 ns, the pulse repetition rate of 200 Hz continuously and up to 1 kHz in 30-second burst mode. The accelerator is based on...
A preliminary study of a microgap discharge aiming at CW excimer laser medium was carried out. Stable CW glow discharge was produced between knife-edge electrodes separated by ∼100 µm in atmospheric air by microwave (2.45 GHz) excitation. The plasma in the microgap was investigated by laser light scattering. A special triple-grating spectrometer with sharp notch characteristics for eliminating Rayleigh...
An all solid state pulsed power system having output voltage of 50kV, voltage rise time of lower than 50ns, repetition rate up to 1kpps, energy per pulse of up to 0.6J has been developed. Using this pulsed power system, pulsed power discharge plasma reactor system has been developed for an industrial odorous gas treatment. Laboratory scale experiments using simulated odorous gas shows that the system...
The report studies the destruction and splitting of hard-rocks by pulsed e-beam and by electric gas spark discharge. It demonstrates that intense repetitive electron beam of sub-microsecond duration destructs the surface effectively for a variety of rocks. An optimum beam density has been obtained for several beam energies to achieve the minimum specific destruction energy capacity. In electric breakdown...
The accelerator has become widely used for industrial field. In particular, the low energy electron accelerator has attracted considerable attention in the field. We have developed and manufactured the electron linac up to 10MeV such as the electron beam sterilization system and the lattice defects generator. The design of electron linac and some of their applications are described in this paper.
Method of space-resolving calorimetry of a high-power electron beam has been developed. Picture of thermal radiation from front surface of the beam receiver is taken by absolutely calibrated CCD detector in visible and near IR range and then transformed into spatial distribution of the beam energy deposition into target. The method is particulary useful under high loads (∼1 kJ/cm2 energy density),...
Relativistic electrons are produced, with energies up to 10 MeV, by the interaction of high-intensity laser pulse with an underdense plasma. With the progress of short-pulse multi-terawatt laser, it has become possible to produce MeV electrons in a plasma. These electrons can be used to apply to medicine and technology. Three-dimensional (3D) particle-in-cell (PIC) simulations were performed to produce...
Numerical investigations of ignition perspectives at gas-dynamical capsule compression with DT gas are presented in this paper. Semi-empiric parameters of accelerated liner, determined with analysis of experiments on x-ray radiation generation on PBFA-Z facility are used. Results of one-dimensional scaling calculations of neutron output, temperature and gas compression for wide range of current values...
The high current upgrade of the accelerator facilities at GSI Darmstadt, Germany, has created possibilities for a new class of experiments with heavy ion beams. Intense pulses of heavy ion beams can rapidly heat converters to high temperatures. The energy deposition of heavy ion beams as well as the hydrodynamic response of the converters and the radiation emitted from the converters are investigated...
This paper is a research on new laser triggered multi-stage switch developed by China Institute of Atomic Energy. This switch specially uses V/N gaps instead of triggered gaps of common switches, which have formed multi channels to reduce the inductance. Electric field simulation calculation is used for optimized designing to make the distribution of electric field reasonable. The result of the experiment...
New method of plasmoid formation is described in the given paper. Conditions of its formation are determined. The first experiments, where it was possible to from the plasmoid, are described.
Experiments with electron beams have been performed on the MIG water-line pulse generator. Both pinched electron beams and double annular beams without pinching were realized with high reproducibility. The parameters of the beams and bremsstrahlung radiation produced have been measured.
An intense relativistic electron beam with a duration of 0.8 ns was obtained by four-stage multi-cavity autoacceleration. The electron beam with an energy of 500 keV and a duration of 12 ns was injected into the coaxial cavities connected tandem with decreasing lengths. And electrons in the last one 16th of its duration was accelerated. The energy of the most accelerated part was 1.1 MeV when a single...
It is shown that the loss of a longitudinal symmetry of magnetic field distribution in respect to the center of the Penning discharge system causes change of electrostatic potential distribution in the discharge gap leads to appearance of asymmetry of current magnitude to the cathodes of the Penning cell, change of magnitude of current density and energy distribution of the ion beam extracted in a...
This paper presents experimental results on the shot pulse (< 20 ns) γ-ray generation. The experiments were carried out on the MIG facility, which consists of 240 kJ high voltage linear pulse transformer (LPT), two water lines, vacuum inductive energy storage (IES), plasma opening switch (POS) and diode. The POS parameters have been experimentaly optimized to achieve the maximum POS impedance...
High-pressure, pulsed glow discharge has been studied for the excitation discharge in TEA gas lasers. The influences of the gas density depletion on the high-pressure, pulsed glow discharge have been investigated eliminating the other instabilities, such as shock waves, residual ions, discharge products and electrode heating. The gas density depletion is produced by utilizing a subsonic gas flow between...
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