33 research outputs found
Anomalous peak in the spectrum of polarizational bremsstrahlung from relativistic electrons moving through a solid target
No full textThe spectral-angular distribution of polarizational bremsstrahlung from relativistic electrons crossing a polycrystalline target is studied theoretically. The effect of substantial growth in the emission spectral density is predicted for photons emitted in the backward direction relative to emitting electron velocityyesBelgorod State Universit
Anomalous peak in the spectrum of polarizational bremsstrahlung from relativistic electrons moving through a solid target
No full textyesThe spectral-angular distribution of polarizational bremsstrahlung from relativistic electrons crossing a polycrystalline target is studied theoretically. The effect of substantial growth in the emission spectral density is predicted for photons emitted in the backward direction relative to emitting electron velocityBelgorod State Universit
Design of the granary technological process control subsystem for monitoring of the grain volume in a silo
No full textModification of the EDXD method for diagnostics of polycrystalline and fine-grained media
Get PDFThe possibilities of using broadband X rays for diagnostics of the atomic structure of solids are considered. It is proposed to use virtual photons of the Coulomb field of a relativistic electron beam as primary probe radiationye
Modification of the EDXD method for diagnostics of polycrystalline and fine-grained media
No full textyesThe possibilities of using broadband X rays for diagnostics of the atomic structure of solids are considered. It is proposed to use virtual photons of the Coulomb field of a relativistic electron beam as primary probe radiatio
Measurement of the polarization bremsstrahlung of relativistic electrons in polycrystalline targets
No full textThe spectra of the collimated polarization bremsstrahlung of 7-MeV electrons intersecting Al, Cu, and Ni polycrystalline films have been measured. Detailed quantitative comparison of the experimental data with theoretical predictions has been performedyesBelgorod State Universit
Dielectronic recombination in non-LTE plasmas
No full textInternational audienceNovel phenomena and methods related to dielectronic capture and dielectronic recombination are studied for non-local thermodynamic equilibrium (LTE) plasmas and for applications to non-LTE ionization balance. It is demonstrated that multichannel autoionization and radiative decay strongly suppress higher-order contributions to the total dielectronic recombination rates, which are overestimated by standard approaches by orders of magnitude. Excited-state coupling of dielectronic capture is shown to be much more important than ground-state contributions, and electron collisional excitation is also identified as a mechanism driving effective dielectronic recombination. A theoretical description of the effect of angular-momentum-changing collisions on dielectronic recombination is developed from an atomic kinetic point of view and is visualized with a simple analytical model. The perturbation of the autoionizing states due to electric fields is discussed with respect to ionization potential depression and perturbation of symmetry properties of autoionization matrix elements. The first steps in the development of statistical methods are presented and are realized in the framework of a local plasma frequency approach. Finally, the impact of collisional–radiative processes and atomic population kinetics on dielectronic recombination is critically discussed, and simple analytical formulas are presented
Measurement of the polarization bremsstrahlung of relativistic electrons in polycrystalline targets
No full textyesThe spectra of the collimated polarization bremsstrahlung of 7-MeV electrons intersecting Al, Cu, and Ni polycrystalline films have been measured. Detailed quantitative comparison of the experimental data with theoretical predictions has been performedBelgorod State Universit
Plasma Physics Reports V. 28, I. 04
No full textPlasma Physics Reports -- April 2002
Volume 28, Issue 4, pp. 259-366
MAGNETIC CONFINEMENT SYSTEMS
Analytic Examples of Force-Free Toroidal MHD Equilibria
A. A. Martynov and S. Yu. Medvedev
pp. 259-267 Full Text: PDF (304 kB)
Dynamics of Ion Heating in a Gas-Dynamic Trap during Neutral Beam Injection
A. A. Zuev, A. A. Ivanov, A. N. Karpushov, E. Yu. Kolesnikov, S. V. Murakhtin, and S. L. Strogalova
pp. 268-273 Full Text: PDF (208 kB)
PLASMA DIAGNOSTICS
Diagnostics of Plasma Oscillations by the Field of Surface Waves Guided by a Dielectric Waveguide
G. A. Markov and I. V. Khazanov
pp. 274-285 Full Text: PDF (148 kB)
PLASMA DYNAMICS
Numerical Modeling of the Dynamics of a Slow Z-Pinch
A. S. Kingsep, V. E. Karpov, A. I. Lobanov, Y. Maron, A. A. Starobinets, and V. I. Fisher
pp. 286-295 Full Text: PDF (394 kB)
Dynamics of an Al Wire Corona of a Megaampere Z-pinch
P. Kubes, J. Kravárik, O. Renner, E. Krouský, Yu. L. Bakshaev, P. I. Blinov, A. S. Chernenko, E. M. Gordeev, S. A. Dan'ko, V. D. Korolev, and A. Yu. Shashkov
pp. 296-302 Full Text: PDF (251 kB)
RADIATION IN PLASMA
Polarization Mechanism for Bremsstrahlung and Radiative Recombination in a Plasma with Heavy Ions
V. A. Astapenko, L. A. Bureyeva, and V. S. Lisitsa
pp. 303-311 Full Text: PDF (111 kB)
NONLINEAR PHENOMENA
Current Filaments in Plasmas
B. A. Trubnikov
pp. 312-326 Full Text: PDF (379 kB)
SPACE PLASMA
Calculation of the Electric Field in Space Plasma near a Conducting Sphere Injecting an Electron Beam
E. K. Kolesnikov
pp. 327-334 Full Text: PDF (102 kB)
OSCILLATIONS AND WAVES IN PLASMA
Propagation of MHD Waves in a Plasma in a Sheared Magnetic Field with Straight Field Lines
P. N. Mager and D. Yu. Klimushkin
pp. 335-341 Full Text: PDF (83 kB)
PARTICLE MOTION
Boundary of the Adiabatic Motion of a Charged Particle in a Dipole Magnetic Field
S. N. Kuznetsov and B. Yu. Yushkov
pp. 342-350 Full Text: PDF (127 kB)
BEAMS IN PLASMA
Nonlinear Interaction of an Annular Electron Beam with Azimuthal Surface Waves
V. O. Girka and S. Yu. Puzyr'kov
pp. 351-358 Full Text: PDF (94 kB)
LOW-TEMPERATURE PLASMA
Scanning Calorimetry Measurements of the Energy Parameters of a Plasmochemical Polymer Oxidation Reaction
A. N. Magunov
pp. 359-366 Full Text: PDF (117 kB)Archived web conten
