The temporal evolution of X-ray spectra emitted from Mg~(10+) and Mg~(11+) ion along the side-blow direction was recorded by using X-ray streak camera. The results demonstrate that three-body recombination is the main mechanism to realize the strong population inversion between the excited state energy levels Is4p and Is3p of Mg~(10+) ion.
Using a lens array to make the laser energy distribution uniform,the diameter of focus spot φ 400mm, I a ≈0.55×10 14 W/cm 2,CH plane targets, m· =2×10 5g/cm 2·s from the crystal specrometers, m· =1.35×10 5g/cm 2·s from X ray streak camera, p =1.6×10 12 Pa.
A simple and efficient method is suggested to obtain the fringe order of measured points.
Pump and probe shadow imaging and interferometric fringe imaging have been used to determine plasma density, relaxation time, and electron collision time in the conduction band.
We show that when the bandwidth of the noise spectrum is increased, the first-order interference pattern disappears while the sub-wavelength pattern fringe emerges in the intensity correlation measurement.
The phase permeabilities were obtained for oil and water moving behind a fringe of polymer substance.
Measurements with 20 temperature readings within each fringe were performed for K-8 glass in a gas-discharge plasma.
The former trait, so-called morph striata, is phenotypically expressed as a light dorsomedial stripe.
Hysteresis of the characteristics of magnetostatic waves in ferrite films with stripe domains whose magnetization vectors are or
The propagation of zero-exchange spin waves (magnetostatic waves) is investigated in yttrium iron garnet films having a regular stripe domain structure with almost in-plane orientation of the domain magnetization vectors.
Phase transitions in biperiodic stripe domain structures of uniaxial magnetic films with a positive anisotropy constant
The effect of the inner structure of domain walls on the time-independent parameters of an isolated stripe domain in a thin ferromagnetic film is studied.
The equations for the coincidence image formation and interference fringes are derived, from which it is clear that the imaging is due to the corresponding focusing in the two paths.
The quality and visibility of the images and fringes can be high simultaneously.
The foundation of the method consists in the formation of an input signal in the form of interference fringes with a gradually changing period.
Using the quadrature method for forming informative signals, phase shifts were measured in a wide range of fractions of an interference fringe to several fringes with a high homogeneous differential sensitivity.
It is shown with reference to an analysis of deformation of a circular membrane that the patterns of fringes obtained under the same conditions by means of the two methods are in satisfactory agreement.
Streak photographs and shadowgraphs of the time-dependent interaction of the reflected shock with the boundary layer under separation conditions with three-shock system formation are presented.
The diagnostic base makes it possible to monitor the voltage, current, and optical patterns in the modes of streak photography and frame-by-frame registration at both the preionization and main-discharge stages on a common time scale.
The possibility of detecting fast ions (protons and α particles) using an X-ray-sensitive streak camera with a CsI photocathode is demonstrated.
The RFR-4 X-ray streak camera with a slit scan designed on the basis of an X-ray sensitive evacuated image tube is described.
The streak camera is equipped with a gate-valve unit with an autonomous evacuation system; this allows one to use it in installations where the working-chamber pressure increases dynamically up to 0.1 Torr.