Разработка и исследования ионного Br - диода

Объектом исследования является ионный Br–диод с внешним магнитным полем. Целью работы является разработка конструкции ионного Br–диода и проведение на нем исследовании по генерации мощных ионных пучков различного массового состава и фокусировки ионного пучка, для повышения эффективности работы ионного диода и ресурса работы анодного покрытия. В процессе исследования проводились расчеты по определению размеров и конструкции ионного Br-диода, параметров магнитного поля, создаваемого внешним источником питания. По разработанному Br-ионному диоду проводились экспериментальные исследования различных эмиссионных покрытий анода, а также опыты по улучшению фокусировки ионного пучка.The object of investigation is an ion Br-diode with an external magnetic field. The aim of the work is to develop the design of the ion Br-diode and to carry out research on the generation of powerful ion beams of various mass composition and focusing of the ion beam, in order to increase the efficiency of the ion diode and the life of the anode coating. During the research, calculations were made to determine the size and design of the ion Br-diode, the parameters of the magnetic field created by an external power source. Based on the developed Br-ion diode, experimental studies of various emission coatings of the anode, as well as experiments to improve the focusing of the ion beam, were carried out

Crystal structure of catena-poly[[di­iodidomer­cury(II)]-μ-2,2′-di­thio­bis­(pyridine N-oxide)-κ2O:O′]

The title compound, [HgI2(C10H8N2O2S2)]n, a one-dimensional coordination polymer with HgI2 units and 2,2′-dithiobis(pyridine N-oxide) spacer ligands in an alternating fashion, forms helical chains running along the b axis in the crystal. Within a single coordination polymer strand, the axially chiral 2,2′-dithiobis(pyridine N-oxide) ligands are homochiral, but the enantiomeric conformation is present in adjacent strands. Within a coordination polymer strand, the iodido ligands point towards the centroids of the aromatic rings of the pyridine N-oxide moieties in the coordination sphere of HgII. Moreover, intra-strand C—H...O and C—H...I interactions, and inter-strand short S...I and S...O contacts are observed

Face-to-Face Stacking and Saddle Distortion of 5,10,15,20-Tetra(4-hydroxyphenyl)porphyrinatocopper(II) in Two New Solvates

The crystal structures of the methanol nitrobenzene sesquisolvate hemihydrate (1) and the 3.75-dimethyl sulfoxide solvate monohydrate (2) of 5,10,15,20-tetra(4-hydroxyphenyl)porphyrinatocopper(II) (CuTOHPP) are reported. Both 1 and 2 crystallise in the triclinic system with two molecules of the metalloporphyrin in the asymmetric unit (Z′ = 2). Compound 1 exhibits an extended two-dimensional hydrogen-bonded network in the crystal, whereas discrete hydrogen-bonded assemblies of CuTOHPP and solvent molecules are found in 2. Face-to-face stacking of the metalloporphyrin units and O–H⋯O hydrogen bonding interactions are identified as the most important solid-state organisational features in both 1 and 2. Saddle distortion of the metalloporphyrin units is encountered in both new solvates and there are no Cu⋯O interactions, despite four hydroxy groups on each porphyrin ligand and the presence of oxygen donor solvent molecules