Algorithm and program for information processing with the filin apparatus

The reduction of spectral radiation data from space sources is described. The algorithm and program for identifying segments of information obtained from the Film telescope-spectrometer on the Salyut-4 are presented. The information segments represent suspected X-ray sources. The proposed algorithm is an algorithm of the lowest level. Following evaluation, information free of uninformative segments is subject to further processing with algorithms of a higher level. The language used is FORTRAN 4

Silica sol-gel materials with metal and semiconductor nanoparticles: synthesis, structure and optical features

Recent achievements on fabrication, structure and optical features of the metal- and semiconductor-doped silica sol-gel materials are reviewed. The nanoparticles of copper and copper compounds (oxides, sulfides and selenides) have been produced by means of the modified silica-based sol-gel technique within the two types of materials: amorphous silica films and monolithic glasses. The features of optical absorption are discussed in dependence on chemical composition. They are variable by stoichiometry of the compounds, size of particles, their concentration and localization in the matrix. These factors determine optical properties of mate- rials and open pathways of their application, in particular, as switching and beam-controlling elements in near-IR lasers. The quantum confinement and a partial surface chemical modification of the nanoparticles are considered as possible reasons for occurrence of the optical features specific for the copper multivalent compounds

Proton- and -radiation of the Micro-Pinch with the Boron-Containing Target

Using ion pinhole camera and track detectors, the image of hot spot is recorded in a pulsed diode micro-pinch equipped with a solid anode target. The track image is a record of repeated fronts of fast protons with energies up to 1 MeV. Fluctuations in the ion luminosity of hot spot are associated with the wave-like nature of the proton accelerating processes in the dense plasma of target material, which is characterized by a mean energy of 100 keV. The results of the track analysis of a fast ions, detected in the Thomson analyser in experiments with boron-polyethylene targets, are presented. In 5% of the shots, the presence of ?-particles of energy up to 2 MeV in the flux of fast ions is discovered by means of Thomson analyser equipped with track detectors. Estimations of total amount of helium nuclei as products of nuclear reactions p(B11, 2?) result in an output of 108 ÷ 109 per successive shot