The method of multipulse registration of nuclear magnetic resonance signal in unhomogeneous magnetic field
This paper presents the results of a series of experiments whose purpose was to investigate the possible use of composite pulses to improve the homogeneity of the magnetic field and study the possibility of identifying compounds based on the relaxation characteristics of the NMR signals.
1. Хаусен К. Х., Кальбитцер Х. Р. ЯМР в медицине и биологии. Киев, 1993.
2. Эрнст ...
Stationary plasma thruster with permanent magnets for small-sized space-crafts
This paper presents the description of a stationary plasma thruster with permanent magnets. The magnetic field generated by constant magnets is estimated, and configuration of the thruster magnetic system is defined herein.
1. Горшков О. А., Муравлёв В. А., Шагайда А. А. Холловские и ионные двигатели ...
Investigation of influences parameters and topology of magnetic field peripheral zone stationary plasma thruster on the efficiency of the cathode-compensator
... Российского государственного университета им. И. Канта. Вып. 10. Калининград, 2010.
Mitrofanova O., Rumyantsev А.
stationary plasma thruster (SPT), cathode-compensator, topology of magnetic field, magnetic field, cathode coupling voltage (Uкз), 3D-calculations of magnetic field.
Study of the configuration of the core of the magnetization source of magnetic systems of electric propulsion
Results of researches of influence of various forms of cores of external sources of magnetising force of magnetic systems of electric propulsion on azimuthal evenness of magnetic field distribution in an operating interpolar interval are presented.
Гопанчук В. В.
Плазменный двигатель с замкнутым дрейфом электронов: пат. РФ №
2204053; кл. F03H 1/00; 29....
Dipolarization of the earth magnetic field and charge particles precipitation from the magnetic flux tube
During the expansion phase of the substorm in the nightside magnetosphere enhancement of the magnetic field and decrease the plasma pressure is observed simultaneously. Enhancement of the magnetic field is recorded at first in the tail of the magnetosphere, and then at more closer distances from the Earth. This process takes a few minutes and covers the ...
Building transmitter circuit for the study of parameters of system of secondary emitters
Suggest a method for constructing a system of magnetic coils, of the workspace in which excited облучающее sample magnetic field used to study the parameters of the system of secondary emitters. Theoretically formulated and practically implemented model of the feed, providing the creation of a uniform magnetic field on the stage. The measurements of the distribution of magnetic ...
Computer modeling of magnetic systems of stationary plasma thrusters
The results of 7000 hour SPT-100 life testing // IEPC-95—039, 24th International Electric Propulsion Conference. Moscow
Gnizdor R. Yu., Kozubsky K. N., Mitrofanova O.A.
stationary plasma thruster, calculation of magnetic field, magnetic system, cathode position.
The pattern of electromagnetic fields of industrial frequency in the central area of Kaliningrag city
... of magnetic fields // CAS — CERN Accelerator School: Measurement and Alignment of Accelerator and Detector Magnets (Anacapri, Italy, 11—17 Apr 1997). Geneva, 1998. P. 375—386. doi: 10.5170/CERN-1998-005.375.
Sturman V. I.
electromagnetic fields, magnetic fields, magnetic induction, mapping, Kaliningrad
A surprising tale of long-periodic spin oscillations in the synthetic antiferromagnets: some exact solutions
... article is devoted to construction of a mathematical theory capable of explaining those experimentally observable periodic magnetic oscillations in the synthetic antiferromagnet Pt/Co/Ir/Co/Pt that take place after a switch in the direction of an external magnetic field. In particular, we demonstrate that in order to understand the aforementioned phenomenon it is essential to first properly model the collisions between the magnetic domains of different spin orientations ( and ). The resulting model comprised of ...
Side resonances in diamond: Impact of hyperfine and nuclear quadrupole interactions
The structure of optically detected magnetic resonance spectra of diamond crystal is examined. It is shown that in the absence of external magnetic field the hyperfine structure of side resonances caused by the hyperfine interactions and is not influenced by the nuclear quadrupole interaction.
1. Doherty M. W., Dolde F., Fedder H. et al. Theory of the ground state spin of the NV center in diamond ...
Optimization of the parameters of transmitting antenna systems of the SDV- and DV-bands
This work is related to the field of radio engineering and is devoted to the search for ways to improve the transmission antennas of the SDV- and DV- bands ... ... mass-dimensional and radiating parameters. These ranges are widely used for communication with mobile objects in areas with high magnetic activity, as well as in Maritime Strait zones; for direction finding of radiation when determining the location of ...
The current operators of spin-polarized electrons in quantum dots
A detection of spin polarized tunneling current through the quantum dot in a circularly polarized magnetic field is investigated. Current operators and proposed of successive iterative procedure for elaboration those operators are introduced.
1. Engel H. A., Loss D. Single spin dynamics and decoherence in a quantum dot via charge transport // arXiv:cond-mat/109470v1....
Dynamical invariants and manipulation of electron spin in a quantum dot
In this paper we discuss electrical manipulation of a spin an electron in quantum dot within a weak magnetic field. Approach to describing this process is based on Lewis — Riesenfeld dynamical invariants. Necessary conditions of a spin-flip process are derived.
1. Loss D., DiVincenzo D. P. Quantum computation with quantum dots // Phys. Rev. 1998. A 57. P....
Double nuclear quadrupole resonanse 14N in some nitrogen-contained matters
The article analyses the peculiarities of indirect observation of NQR nitrogen signals and determines the conditions for the enhancement of
spin systems efficiency in static magnetic fields. It allows keeping records of the 14N spectra in the range below 1 MHz at room temperature.
This method may be used for researches on low isotope matters.
С., Синявский Н.
Новые физические ...
Digital smart technologies as a method of expansion of educational field physical laboratory of general physics
... computer algebra systems, virtual instrumentation. The examples two laboratory works on atomic physics, illustrating methods of expansion of educational resources by means of intelligent digital technology. In the first study the motion of electrons in a magnetic field along a helical line. In the second, combines the advantages of a prism spectrometer with digital spectrometer. It is shown that the developed method improves the accuracy of measurement and calculation of physical parameters.
1. Язык Wolfram ...
The influence of implantation on the bright-ness of nitrogen-vacancy centers
... assume that during cascade transitions between the states of some NV- centers obtained by implantation, an intense 13C NMR signal can be observed. It is important to note that optical pumping of such NV- centers can be carried out in an arbitrary magnetic field.
Ivanov A. I., Shpilevoi A. A., Kulagina A. A.
diamond, implantation, level anti-crossing
Simulating of ion and electron trajectories in thermal plasma in electric field of a satellite by the molecular dynamic method
... satellite and thermal plasma was considered. The ion and electron trajectories for different initial velocities and directions are shown. The calculated particle trajectories have some deviations from the classical trajectories in crossed electric and magnetic fields. The examples of closed trajectories of electrons are discussed.
1. Гальперин Ю. И., Гладышев В. А., Козлов А. И. и др. Электромагнитная совместимость научного космического ...
Teoretical nonstationary two-dimensional modal with altitude-longitudinal variations of ionosphere parameters
By means of mathematical two-dimensional nonstationary model mechanisms of formation of longitudinal effect in a middle-latitude ionosphere are probed and is shown that one of main engines is the thermosphere wind in combination with earth magnetic field geometry. Model calculations of dependence of longitudinal effects in middle-latitude F-area from levels of geomagnetic and solar activity are carried out. It is shown that with increase in a geomagnetic disturbance the behavior of electronic concentration ...