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Kinetic parameters of some tissue equivalent thermoluminescence materials
(Journal of Physics. D: Applied Physics, 2000)
The paper reports a study on the kinetic parameters of some thermoluminescent tissue equivalent materials recently prepared in Vinca Institute: Li2B4O7:Mn.Si, Li2B4O7:Cu. Li-2 B4O7:Cu,In and MgB4O7:Dy,Na. The kinetics ...
Dispersion-free solvent extraction of thallium(III) in hollow fiber contactors
(Separation Science and Technology, 2000)
Dispersion-free extraction of thallium(III) from NaCl/H2SO4 solution into butyl acetate has been studied using hydrophobic polypropylene and polyvinylidene fluoride hollow fibers of different effective lengths. The aqueous ...
Rayleigh-Taylor instability of magnetized density transition layer
(Physics of Plasmas, 2000)
In presence of a uniform magnetic field for a smoothly varying density profile in a limit of small Atwood numbers, an analytic solution is obtained. The spectrum of unstable modes is defined. It is shown that this spectrum ...
Effect of lithium co-dopant on the thermoluminescence response of some phosphors
(Applied Radiation and Isotopes, 2000)
The effect of lithium co-dopant on the thermoluminescence of some TL phosphors has been studied. These results show that lithium co-dopant when present in CaSO4:Dy, CaSO4,Tm, CaF2:Mn, MgB4O7:Dy, MgB4O7:Tm, MgB4O7:Tb, ...
An X-ray diffraction and magnetic susceptibility study of TmxY2-xO3
(Journal of Magnetism and Magnetic Materials, 2000)
The polycrystalline samples of TmxY2-xO3 (x = 0.1, 0.2, 0.4, 0.6, 1, 1.4, 1.8) were obtained by ceramic technology. X-ray diffraction data were collected and the crystal structures were refined by the Rietveld method, A ...
Solitons in the system of interacting Frenkel excitons
(Journal of Physics: Condensed Matter, 2000)
The possible formation of solitons in a Frenkel exciton system, with exciton-exciton interaction only, is studied taking into account the Pauli character of exciton operators. This is realized by choosing the trial function ...
Synthesis and characterization of CdS quantum dots-polystyrene composite
(Chemical Physics Letters, 2000)
Methodology for incorporation of 50 A CdS quantum dots (QD) in a polystyrene matrix, based on phase transfer of CdS quantum dots from an aqueous to organic phase, was developed. The obtained composite was characterized ...
Neutron diffraction study of the magnetic and structure properties of Co2.50Sb0.50O4 spinel
(Journal of Magnetism and Magnetic Materials, 2000)
The Co2.50Sb0.50O4 spinel has been studied by neutron diffraction in the temperature range 10-90 K and at room temperature. The crystal and magnetic structures were solved by the use of the Rietveld method. The cationic ...
Magnetic susceptibility of Co2+ pairs in [Co-2(ox)tpmc](ClO4)(2)center dot 3H(2)O cluster complex
(Journal of Magnetism and Magnetic Materials, 2000)
Calculation of the magnetic susceptibility of Co2+ pairs in the recently synthesized cobaltous cluster complex [Co-2(ox)tpmc](ClO4)(2). 3H(2)O has been conducted by the use of two different theoretical models. The calculated ...