Search academic texts

Information × Registration Number 0211U007171, 0109U007185 , R & D reports Title Low Pressure Discharge initiated by Microwave Radiation with Stochastically Jumping Phase popup.stage_title Head Karas' Viacheslav Ignatovych, Registration Date 31-03-2011 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 "Сo-worker of NSC KIPT the experimental study on unique PPG with their one-sented the theoretical background NSC KIPT staff together with scientists from IPM and FSUE RSC TRINITI (receiving optical radiation from the category of low pressure, which was initiated MWRSJP, and optimization of its spectrum) and researchers with ITF Nano (numerical simulation of MWRSJP clustered ions. Determination of optimum regimes of heating of particles.). "The spectra of light emission of discharge dependent on the pressure of working gas (air) in the coaxial waveguide, namely a decrease in air pressure range of optical radiation from the category of enriched shorter wavelengths, so if the P= 28 Pa and P= 20 Pa range depleted at wavelengths less than 5500 A, ie red radiation prevails, then a lower-pressure range of almost an order significantly enriched in short wavelengths, that is prevailing blue emission. "Shown that the breakdown and discharge maintenance leads to a strong attenuation at the output waveguide spectral component that corresponds to the maximum of the signal at the input to the coaxial waveguide. "When MWRSJP frequency and frequency jumping phase, observed in research studies for creating and maintaining a discharge in the air enough electric field 50 V / cm. "Based on the numerical simulation studied the diffusion of charged particles, including dust particles and cluster ions in the space of coordinates and velocities in random fields with stochastic phase alternation. Shown that the diffusion of particles in space coordinates and velocity tends to increase with decreasing transition phase-change period. However, this growth is not monotonous - the most intense heating of charged particles the field is not for sudden jumps, and the conditions of the finite duration of the transition. The time of transition at the same time be small compared with the period of the waves. "With the developed program SPECRAY, which allows to approximate thermodynamic equilibrium nerozsiyuyuchoho environment and expect power spectral density of radiation along the beam were simulated spectrum of radiation coming up with a uniform layer of gas mixture Xe and Na at temperatures from 4000 K to 8000 K (0.34-0.69 эV ) with step 1000 K. "Shows that are quite real prospect of establishing a source of light radiation is not great-power on the basis of considered highly effective at operating in the area of low pressure stochastic microwave discharge. The results may be used to develop a new type of highly efficient sources of optical radiation from quasisun spectrum, which can make the principal breakthrough in lighting technology. Light and power industries is the application of the results for which the results are paramount. Product Description popup.authors Єгоров Олексій Михайлович Алісов Анатолій Федорович Артамошкін Анатолій Михайлович Болотов Олег Валерійович Голота Володимир Іванович Загребельний Ігор Анатолійович Карась Ірина Вячеславівна popup.nrat_date 2020-04-02 Close