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81.
We use the quasiparticle random phase approximation to study properties of the low-lying 2+ states in the even-even nuclei around 132Sn. Starting from a Skyrme interaction in the particle-hole channel and a density-dependent zero-range interaction in the
particle-particle channel, the calculation within the finite-rank separable approximation for the residual interaction is
performed. 相似文献
82.
S. Yu. Aleksandrin A. V. Bakaldin A. G. Batischev M. A. Bzheumikhova S. A. Voronov A. M. Galper L. A. Grishantseva S. V. Koldashov P. Yu. Naumov V. Yu. Chesnokov N. D. Sharonova V. A. Shilov 《Bulletin of the Russian Academy of Sciences: Physics》2009,73(3):361-363
New results are presented on the observations of bursts and variations in high-energy charged-particle fluxes in the near-Earth space by the ARINA instrument operated onboard the Resurs-DK1 satellite since 2006. 相似文献
83.
K. S. Aleksandrov S. V. Misyul M. S. Molokeev V. N. Voronov 《Physics of the Solid State》2009,51(12):2505-2512
The structures of all three phases of the Rb2KInF6 crystal have been determined from the experimental X-ray diffraction data for the powder sample. The refinement of the profile
and structural parameters has been carried out by the technique implemented in the DDM program, which minimizes the differences
between the derivatives of the calculated and measured X-ray intensities over the entire profile of the X-ray diffraction
pattern. The results obtained have been discussed using the group-theoretical analysis of the complete order-parameter condensate,
which takes into account the critical and noncritical atomic displacements and permits the interpretation of the experimental
data obtained previously. It has been reliably established that the sequence of changes in the symmetry during phase transitions
in Rb2KInF6 can be represented as $
Fm\bar 3m\xrightarrow[{0,0,\phi }]{{11 - 9\left( {\Gamma _4^ + } \right)}}{{I114} \mathord{\left/
{\vphantom {{I114} {m\xrightarrow[{\left( {\psi ,\phi ,\phi } \right)}]{{11 - 9\left( {\Gamma _4^ + } \right) \oplus 10 - 3\left( {X_3^ + } \right)}}{{P12_1 } \mathord{\left/
{\vphantom {{P12_1 } {n1}}} \right.
\kern-\nulldelimiterspace} {n1}}}}} \right.
\kern-\nulldelimiterspace} {m\xrightarrow[{\left( {\psi ,\phi ,\phi } \right)}]{{11 - 9\left( {\Gamma _4^ + } \right) \oplus 10 - 3\left( {X_3^ + } \right)}}{{P12_1 } \mathord{\left/
{\vphantom {{P12_1 } {n1}}} \right.
\kern-\nulldelimiterspace} {n1}}}}
$
Fm\bar 3m\xrightarrow[{0,0,\phi }]{{11 - 9\left( {\Gamma _4^ + } \right)}}{{I114} \mathord{\left/
{\vphantom {{I114} {m\xrightarrow[{\left( {\psi ,\phi ,\phi } \right)}]{{11 - 9\left( {\Gamma _4^ + } \right) \oplus 10 - 3\left( {X_3^ + } \right)}}{{P12_1 } \mathord{\left/
{\vphantom {{P12_1 } {n1}}} \right.
\kern-\nulldelimiterspace} {n1}}}}} \right.
\kern-\nulldelimiterspace} {m\xrightarrow[{\left( {\psi ,\phi ,\phi } \right)}]{{11 - 9\left( {\Gamma _4^ + } \right) \oplus 10 - 3\left( {X_3^ + } \right)}}{{P12_1 } \mathord{\left/
{\vphantom {{P12_1 } {n1}}} \right.
\kern-\nulldelimiterspace} {n1}}}}
. 相似文献
84.
V. V. Mikhailov O. Adriani G. A. Bazilevskaya G. C. Barbarino R. Bellotti E. A. Bogomolov M. Boezio V. Bonvicini M. Bongi S. Bottai A. Bruno A. Vacchi E. Vannuccini G. I. Vasilyev S. A. Voronov A. M. Galper C. De Santis V. Di Felice G. Zampa N. Zampa M. Casolino D. Campana A. V. Karelin P. Carlson G. Castellini F. Cafagna A. A. Kvashnin A. N. Kvashnin S. V. Koldashov S. A. Koldobskiy S. Y. Krutkov A. A. Leonov A. G. Mayorov V. V. Malakhov M. Martucci L. Marcelli W. Menn M. Merge Yu. V. Mikhailova E. Mocchiutti A. Monaco N. Mori R. Munini G. Osteria B. Panico P. Papini P. Picozza M. Pearce M. Ricci S. B. Ricciarini M. F. Runtso M. Simon R. Sparvoli P. Spillantini Y. I. Stozhkov Y. T. Yurkin 《Physics of Atomic Nuclei》2018,81(4):515-519
Measurements of secondary-electron and secondary-positron fluxes below the geomagnetic cutoff in near-Earth space were performed by means of the PAMELA magnetic spectrometer installed on board the Resurs-DK1 satellite launched on June 15, 2006, in an elliptical orbit of inclination 70° and altitude 350 to 600 km. This spectrometer permits measuring the fluxes of electrons and positrons over a wide energy range, as well as determining their spatial distributions to a precision of about 2°. A calculation of particle trajectories in the geomagnetic field makes it possible to separate electrons and positrons originating from cosmic-ray interactions in the Earth’s magnetosphere. The spatial distributions of quasitrapped, trapped, and short-lived albedo positrons and electrons of energy above 70 MeV in the radiation belt were analyzed. The ratio of the electron-to-positron fluxes and the energy spectra of the electrons and positrons in question are indicative of different productionmechanisms for stably trapped and quasitrapped secondary particles. 相似文献
85.
K. Christova I. A. Maslyanitsyn I. Miloushev V. D. Shigorin T. Tenev V. Voronov 《Physics of Wave Phenomena》2018,26(1):9-15
Optical second harmonic generation, mechanical stresses, and structure are investigated in thin polycrystalline zinc sulfide films. The resulting data indicate that there is no correlation between the mechanical stresses and the quadratic optical nonlinearity. In view of the X-ray diffraction results, the nature of the nonlinearity is explained using the model of a nanotextured film consisting of crystallites with the sphalerite or wurtzite structure. It is shown that this model allows satisfactory agreement between calculations and experiment. 相似文献
86.
Volodymyr Samaryk Sergiy Varvarenko Ihor Tarnavchyk Nataliya Nosova Nataliia Puzko Stanislav Voronov 《Macromolecular Symposia》2008,267(1):113-117
A principal possibility of the utilization of polymer peroxides for the modification of polymer surfaces that provides an immobilization of the tailored quantity of peroxide groups at them has been established. The processes of polymer surface activation with following “grafting from” or “grafting to” utilizing immobilized peroxide groups has been studied using a FTIR-ATR spectroscopy, ellipsometry and measurements of contact angles. The proposed technique of polymer surface activation is based on the universal ability of carbon chain polymer to participate the free radical reactions. 相似文献
87.
张文 李宁蒋玲 缪巍林镇辉 姚骑均史生才陈健 吴培亨S.I.Svechnikov Yu. B. Vachtomin S. V. Antipov B. M. voronov G. N. Gol'tsman 《中国物理快报》2007,24(6):1778-1781
A quasi-optical superconducting NbN hot-electron bolometer (HEB) mixer is measured in the frequency range of 0.5-2.5 THz for understanding of the frequency dependence of noise temperature of THz coherent detectors. It has been found that noise temperature increasing with frequency is mainly due to the coupling loss between the quasioptical planar antenna and the superconducting HEB bridge when taking account of non-uniform distribution of high-frequency current. With the coupling loss corrected, the superconducting HEB mixer demonstrates a noise temperature nearly independent of frequency. 相似文献
88.
Voronov DL Anderson EH Gullikson EM Salmassi F Warwick T Yashchuk VV Padmore HA 《Optics letters》2012,37(10):1628-1630
Diffraction efficiency of multilayer-coated blazed gratings (MBG) strongly depends on the perfection of the sawtooth-shaped layers in the overall composite structure. Growth of multilayers on sawtooth substrates should be carefully optimized to reduce groove profile distortion and, at the same time, to avoid significant roughening of multilayer interfaces. In this work, we report on a way to optimize growth of sputter-deposited Mo/Si multilayers on sawtooth substrates through variation of the sputtering gas pressure. We believe a new record for diffraction efficiency of 44% was achieved for an optimized MBG with groove density of 5250 lines/mm at the wavelength of 13.1 nm. 相似文献
89.
A.S. Aleksandrovsky A.S. Krylov A.V. Malakhovskii V.N. Voronov 《Journal of luminescence》2012,132(3):690-692
Low temperature luminescence spectrum of holmium ions in monoclinic Rb2KHoF6 crystal was found to be well analyzable by the comparison with earlier studied cubic Cs2NaHoF6. The manifestation of the local symmetry influence on the strength of individual lines is found to be distinctive. In the absence of structural data, the local symmetry of holmium in Rb2KHoF6 is proved to be a non-centrosymmetric one. The concentration quenching of holmium luminescence in Rb2KHoF6 is found to be rather modest. 相似文献
90.
A. P. Voronov V. I. Salo V. M. Puzikov V. F. Tkachenko Yu. T. Vydaĭ 《Crystallography Reports》2006,51(4):696-701
The conditions for the growth of potassium dihydrogen phosphate (KDP) and ammonium dihydrogen phosphate (ADP) crystals with concentrations of the thallium activator in the initial solution of 0.01, 0.1, and 1.0 wt % are investigated. It is shown that the character of incorporation and distribution of thallium in the KDP and ADP lattices is limited, apparently, by the difference in the ionic radii of K+, NH 4 + , and Tl+ cations and the charge state of prismatic {100} and pyramidal {101} growth planes. Doping of KDP and ADP with thallium (to 0.1 and 1.0 wt %, respectively) does not deteriorate the structural quality of these crystals. The dependence of the lattice parameters a and c on the thallium impurity concentration is investigated. The absorption bands of thallium in the KDP:Tl+ and ADP:Tl+ crystals peak at 218 and 215 nm, respectively, while the photoluminescence band peaks at 280 nm for both types of crystals. The relative light yield upon excitation of scintillations by α particles (Pu239) and β particles (Bi207) is measured. 相似文献