Numerical simulation and experimental tests have been carried out to study the mechanisms of generation of UV radiation due to excitation of a row or array of plasma micropinches produced in a high-current electrical discharge of short duration. The optimal geometrical and electric parameters were determined to provide the most effective regimes of generation of short wavelength radiation. High intensity UV emission in the spectral range of \Delta\lambda = 180 - 300 nm was obtained using open discharge in ambient air and in the spectral range of \Delta\lambda = 100 - 300 nm using nitrogen and rare gases mixtures. Original methods were proposed to organize the light emitting discharges operating at higher repetition rate via use of a special low impedance discharge circuit. A possibility of development of a high aperture sources of UV radiation was demonstrated what is very important for a number of applications in laser technique, microelectronics, petrochemistry, medicine and ecology.
This work is supported by RFBR, grant No 02-02-08069.
Document number: 2003-15/728
Authors: S. G. Dambrauskas, V.V. Ivanov, A.T. Rakhimov, V. B. Saenko
Email: VSaenko@mics.msu.su