Compact Induction Accelerator of Laser Plasma for Ion Energy up to 1 MeV

Physics of Particles and Nuclei Letters - The collective acceleration of laser plasma ions in a rapidly increasing magnetic field (108 T/s) excited by a powerful current pulse in a low-inductive...     

Synthesis of 5-fluoro-2-methyl-3-(2-trifluoromethyl-1,3,4-thiadiazol-5-yl)-4(3H)-quinazolinone and related compounds with potential antiviral and anticancer activity

The synthesis of ten new substituted 1,3,4-thiadiazolyl-4(3H)-quinazolinones 8–11, 13, 17 , and 20–23 is reported. Compounds 8–11 were prepared by condensation of 5-fluoro-2-methyl-3,1-benzoxazin-4-one (3) and 5-substituted 2-amino-1,3,4-thiadiazoles 4–7. Compound 13 was obtained by condensation of 5-fluoro-2-methyl-3,1-benzoxazin-4-one (3) with DL-α-amino-?-caprolactam (12) . Compound 17 was synthesized by condensation of 6-bromo-2-methyl-3,1-benzoxazin-4-one (16) and 2-amino-5-t-butyl-1,3,4-thiadiazole (5) . Compounds 20–23 were obtained by condensation of 5-chloro-6,8-dibromo-2-methyl-3,1-benzoxazin-4-one (19) and 5-substituted 2-amino-1,3,4-thiadiazoles 4–7, respectively. The substituted 3,1-benzoxazin-4-ones 3, 16, and 19 were obtained in good yield by refluxing the appropriate anthranilic acid, 1,15 , and 18 with acetic anhydride (2) .     

Interaction of high-power optical radiation with a superdense plasma in the “Kal'mar” installation

A number of effects is observed that attest to the anomalous character of the interaction of radiation with plasma corona, including formation of a perturbation on the electron-density profile, the appearance of an opacity zone in interferometric investigations of plasma, a singularity in the region with critical density, jetlike character of the plasma luminosity in the x-ray region of the spectrum, etc. New methods are developed for the diagnostics of a nonstationary dense plasma. An experimental investigation was made of the stability of compression of hollow shell targets, and a volume compression of the shell by a factor of several hundred is registered.Translated from Trudy Ordena Lenina Fizicheskogo Instituta im. P. N. Lebedeva, Vol. 103, pp. 164–201, 1978.     

On The Statistical Analysis of the Formation of Secondary Radiation Fields in Remote Control Devices Based on Pulsed Neutron Generators

Physics of Atomic Nuclei - The paper is devoted to the study of the influence of pulsed instability of neutron generation on the efficiency of small transportable HMCs. Experimental diagrams of the...     

Effects on deuteron emission stability from deuteride formation in metals used as plasma targets in laser ion sources

Effects on deuteron emission stability have been examined in relation to metal deuteride formation in plasma targets for laser ion sources. Erbium and zirconium deuterides have been used to demonstrate the factors that increase the emission stability by substantial amounts.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 4, pp. 60–64, April, 1990.     

Space-time dependences of the temperature and concentration of hydrogen nuclides in the plasma-forming target of a laser source of deuterons

The space-time dependence of the temperature and concentration of hydrogen nuclides in a plasma-forming target with the composition ZrD of a laser source of deuterons is calculated taking into account the decomposition of zirconium hydride, occurring deep in the target, together with the laser evaporation of matter on the surface of the target. The results obtained enable qualitative explanation of the behavior of the deuteron emission during the operation of the ion source.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 5, pp. 49–53, May, 1988.     

Electrodynamic Method of Enhancing the Fluidity of High-Viscosity Oil during its Extraction

Russian Physics Journal -     

Synthesis,characterization and antitumor activity of palladium(II) complexes of monoethyl 8-quinolylmethylphosphonate

The complex-forming properties of monoethyl 8-quinolylmethylphosphonate (8-Hmqmp) towards palladium(II) ion have been investigated by reactions of the hydrochloride, 8-Hmqmp · HCl · H₂O, and sodium salt, Na(8-mqmp) · 2H₂O, of this monoester with palladium(II) halide compounds in aqueous solution over a wide pH range. Depending on pH and initial quinolinium and palladium salts, four types of complexes have been formed. Under acidic solution the ion-pair salt complexes [8-H₂mqmp]₂[PdX₄] (1 and 2, pH < 3) and [8-H₂mqmp]₂[Pd₂X₆] (3 and 4, pH ∼ 3), with protonated quinoline ligand as cation and tetrahalopalladate or hexahalodipalladate complex as anion (X = Cl, Br), were isolated. By heating in methanol the chloro complexes 1 and 3 as well as bromo complexes 2 and 4 were converted into the quinolinium salt complexes, [8-H₂mqmp][Pd(8-Hmqmp)X₃], 5 and 6, respectively, containing as anion the quinoliniummethylphosphonatetrihalopalladate complex with palladium bonded at the phosphonic acid moiety. The chelate complex 7, [Pd(8-mqmp)₂], with ligand bonded through the quinoline nitrogen and the deprotonated phosphonic acid oxygen and forming two seven-membered {N,O} chelate rings, was obtained in neutral and basic media. The complexes were identified and characterized by elemental analysis, magnetic and conductance measurements, spectroscopic studies (IR, ¹H NMR, UV–Vis, positive/negative ion FAB MS) and thermal analysis (TG, DTA). As a preliminary screening for their biological activity, complexes were investigated for their ability to inhibit the cancer growth in vitro in the human KB and murine L1210 cell lines. The results obtained were compared with those obtained for the complexes of diethyl 8-quinolylmethylphosphonate (8-dqmp) and monoethyl 2-quinolylmethylphosphonate (2-Hmqmp), and structural factors that determine the complex activity were discussed.