Fast Z-pinches,plasma implosions driven by MA-level∼100-ns duration current pulses,are an active research area with applications to a broad range of High Energy Density Physics studies,including investigations of pro...Fast Z-pinches,plasma implosions driven by MA-level∼100-ns duration current pulses,are an active research area with applications to a broad range of High Energy Density Physics studies,including investigations of properties of materials at extreme pressures,1 opacities of various plasmas at conditions found in stellar interiors,2 and scaled modelling of astrophysical magnetohydrodynamics.3 The ability of fast Z-pinches to generate extremely bright pulses of X-ray radiation is of significant interest for Inertial Confinement Fusion(ICF)studies.The highest X-ray powers and yields are achieved using wire-array Z-pinch loads,which are capable of generating 2-MJ,250-TW,<10-ns X-ray pulses at the largest currently operating pulsed power facility,the 25-MA Z machine at Sandia National Laboratories(New Mexico,USA).展开更多
Analysis results of the average annual sea levels in the Caspian Sea obtained from ground and satellite observations, corresponding to solar activity characteristics, magnetic field data, and length of day are present...Analysis results of the average annual sea levels in the Caspian Sea obtained from ground and satellite observations, corresponding to solar activity characteristics, magnetic field data, and length of day are presented. Spectra of the indicated processes were investigated and their approximation models were also built. Previously assumed statistical relationships between space-geophysical processes and Caspian Sea level(CSL) changes were confirmed. A close connection was revealed between the low-frequency models of the solar and geomagnetic activity parameters and the CSL changes. Predictions extending into the next decades showed a high probability of an increase in the CSL and a decrease of the compared space-geophysical parameters.展开更多
文摘Fast Z-pinches,plasma implosions driven by MA-level∼100-ns duration current pulses,are an active research area with applications to a broad range of High Energy Density Physics studies,including investigations of properties of materials at extreme pressures,1 opacities of various plasmas at conditions found in stellar interiors,2 and scaled modelling of astrophysical magnetohydrodynamics.3 The ability of fast Z-pinches to generate extremely bright pulses of X-ray radiation is of significant interest for Inertial Confinement Fusion(ICF)studies.The highest X-ray powers and yields are achieved using wire-array Z-pinch loads,which are capable of generating 2-MJ,250-TW,<10-ns X-ray pulses at the largest currently operating pulsed power facility,the 25-MA Z machine at Sandia National Laboratories(New Mexico,USA).
文摘Analysis results of the average annual sea levels in the Caspian Sea obtained from ground and satellite observations, corresponding to solar activity characteristics, magnetic field data, and length of day are presented. Spectra of the indicated processes were investigated and their approximation models were also built. Previously assumed statistical relationships between space-geophysical processes and Caspian Sea level(CSL) changes were confirmed. A close connection was revealed between the low-frequency models of the solar and geomagnetic activity parameters and the CSL changes. Predictions extending into the next decades showed a high probability of an increase in the CSL and a decrease of the compared space-geophysical parameters.
