# Model for electron cooling by radiation losses in plasmas: Application to development of soft x-ray lasers

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Results of an experimental study of the correlation between the accelerating gap parameters in a plasma source of electrons and the limiting magnitudes of the gas pressure and the voltage applied to the gap are presented. It has been found that the electron beam increases the electrical strength...

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Develops a method for determining lateral depletion length at the boundary of two-dimensional electron systems (2DES). Behavior of edge-magnetoplasmons at large magnetic field; Determination of magnetoplasma excitation in 2DES; Dependence of resonance position on magnetic field; Magnetic-field...

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For a pure electron plasma in a sufficiently strong magnetic field, there is a many-electron adiabatic invariant which constrains the collisional dynamics. For the case of a uniform magnetic field, the adiabatic invariant is the total kinetic energy associated with the electron velocity...

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A method of electron energy control was studied in an inductively coupled plasma that employed a multimode antenna, for high performance in device fabrication plasma processes. The electron energy was reduced by changing the azimuthal mode of a one-turn antenna from m=0 to 2 with no notable...

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Development of the steady-state potential in a two-electron-temperature plasma in contact with the wall is investigated analytically. It is shown that if the hot- to cold-electron temperature ratio is of the order of 10, the potential drop in the presheath is allowed to have either a small value...

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A technique is presented for measuring the parallel energy distribution of magnetically confined electrons in a cylindrically symmetric pure electron plasma. In essence, the technique measures how many electrons are energetic enough to escape past applied confinement potentials. The technique...

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The investigation of the energy diffusion process of the electrons in a magnetized plasma due to an electron cyclotron wave in perpendicular propagation with respect to the magnetic field is performed. Starting from the description of the relativistic electron motion by means of an action-angle...

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Plasma-screening effects are investigated on electron-impact excitation of hydrogenic ions in dense plasmas. Scaled cross sections Z4Â·Ïƒ for 1sâ†’2s and 1sâ†’2p are obtained for a Debyeâ€“HÃ¼ckel model of the screened Coulomb interaction. Ground and excited bound wave...

- The isentropic exponent in plasmas. Burm, K. T. A. L.; Goedheer, W. J.; Schram, D.C. // Physics of Plasmas;Jun99, Vol. 6 Issue 6, p2622
Examines the isentropic exponent in plasmas. Demonstration that isentropic exponent for atomic plasmas is constant; Maintenance of weak dependence on the electron temperature and the two nonequilibrium parameters.