Bibliografías temáticas / Electrostatic ion cyclotron

Literatura académica sobre el tema "Electrostatic ion cyclotron"

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Publicado: 6 de septiembre de 2023

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Artículos de revistas sobre el tema "Electrostatic ion cyclotron"

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Sharma, Shatendra y Jyotsna Sharma. "Spiraling ion beam driven electrostatic ion cyclotron wave instabilities in collisionless dusty plasma". International Journal of Modern Physics: Conference Series 32 (enero de 2014): 1460352. http://dx.doi.org/10.1142/s2010194514603524.

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The numerical calculations of the growth rate in long parallel wavelength are made for a spiraling ion beam propagating through a collision less magnetized dusty plasma cylinder that drives electrostatic ion cyclotron waves to instability via cyclotron interaction. It is found that the growth rate of the instability of the electrostatic ion cyclotron waves increase in the long parallel limit with the density ratio of negatively charged dust grains to electrons. The growth rate of the unstable mode has the maximum value for the modes whose Eigen functions peak at the location of the beam and varies as the one-third power of the beam current in both the limits.
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2

Pokhotelov, O. A., L. Stenflo y P. K. Shukla. "Nonlinear interaction of electrostatic ion-cyclotron and drift waves in plasmas". Journal of Plasma Physics 56, n.º 1 (agosto de 1996): 187–91. http://dx.doi.org/10.1017/s0022377800019176.

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Model equations describing the nonlinear coupling between electrostatic ion-cyclotron and drift waves are derived, taking into account the action of the low-frequency ponderomotive force associated with the ion-cyclotron waves. It is found that this interaction is governed by a pair of equations, which can be used for studying the modulational instability of a constant amplitude ion-cyclotron wave as well as the dynamics of nonlinearly coupled ion-cyclotron and drift waves.
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3

Sharma, S. C. y V. K. Tripathi. "Excitation of ion-cyclotron waves by a spiralling ion beam in a plasma cylinder". Journal of Plasma Physics 50, n.º 2 (octubre de 1993): 331–38. http://dx.doi.org/10.1017/s0022377800027112.

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A helical ion beam propagating through a plasma cylinder drives electrostatic ion-cyclotron waves to instability via cyclotron interaction. Higher harmonics of the beam cyclotron frequency can be generated in this way. The growth rate increases with the harmonic number. The efficiency of beam energy transfer to the wave can be of the order of a few per cent.
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4

ISHIGURO, SEIJI, TETSUYA SATO, HISANORI TAKAMARU y Complexity Simulation Group. "Open boundary particle simulation of electrostatic ion cyclotron instability". Journal of Plasma Physics 61, n.º 3 (abril de 1999): 407–14. http://dx.doi.org/10.1017/s0022377899007539.

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We have developed a 2½-dimensional open boundary particle simulation model and have studied the current-driven electrostatic ion-cyclotron instability and related d.c. potential difference. Fresh streaming electrons are injected smoothly from the boundaries at each time step, avoiding unphysical accumulation of charged particles in front of the boundaries. As a current-driven electrostatic ion cyclotron instability grows, a d.c. potential difference along the magnetic field lines is created.
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5

McWilliams, R., M. K. Okubo y N. S. Wolf. "Electrostatic ion cyclotron instability near threshold". Physics of Fluids 29, n.º 9 (septiembre de 1986): 3031–35. http://dx.doi.org/10.1063/1.865464.

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6

Lemons, D. S., D. Winske y S. P. Gary. "Electrostatic ion cyclotron velocity shear instability". Journal of Geophysical Research 97, A12 (1992): 19381. http://dx.doi.org/10.1029/92ja01735.

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7

Hasan, Zehra y S. Guha. "Parametric excitation of a kinetic Alfvén wave at the ion-cyclotron frequency". Journal of Plasma Physics 43, n.º 3 (junio de 1990): 457–63. http://dx.doi.org/10.1017/s0022377800014902.

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The parametric decay of an electrostatic ion-cyclotron wave into a low-frequency mixed-mode (EM-ES) kinetic Alvén wave and an electrostatic ion-cyclotron side-band has been investigated in a homogeneous low-β plasma. A nonlinear dispersion relation describing this parameteric interaction is derived. The partially electrostatic nature of the kinetic Alfvén wave and the component of the low-frequency ponderomotive force along the direction of the external magnetic field lead to the dominant coupling. Possible applications in the ionosphere, in the earth's magnetosphere and in laboratory plasmas are discussed.
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8

Chow, V. W. y M. Rosenberg. "Electrostatic ion cyclotron instabilities in negative ion plasmas". Physics of Plasmas 3, n.º 4 (abril de 1996): 1202–11. http://dx.doi.org/10.1063/1.871744.

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9

Crocker, N. A., S. X. Tang, K. E. Thome, J. B. Lestz, E. V. Belova, A. Zalzali, R. O. Dendy et al. "Novel internal measurements of ion cyclotron frequency range fast-ion driven modes". Nuclear Fusion 62, n.º 2 (5 de enero de 2022): 026023. http://dx.doi.org/10.1088/1741-4326/ac3d6a.

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Abstract Novel internal measurements and analysis of ion cyclotron frequency range fast-ion driven modes in DIII-D are presented. Observations, including internal density fluctuation ( n ~ ) measurements obtained via Doppler backscattering, are presented for modes at low harmonics of the ion cyclotron frequency localized in the edge. The measurements indicate that these waves, identified as coherent ion cyclotron emission (ICE), have high wave number, k ⊥ ρ fast ≳ 1, consistent with the cyclotron harmonic wave branch of the magnetoacoustic cyclotron instability, or electrostatic instability mechanisms. Measurements show extended spatial structure (at least ∼1/6 the minor radius). These edge ICE modes undergo amplitude modulation correlated with edge localized modes (ELM) that is qualitatively consistent with expectations for ELM-induced fast-ion transport.
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10

SORASIO, G. y M. ROSENBERG. "Instability of higher-harmonic electrostatic dust cyclotron waves". Journal of Plasma Physics 65, n.º 4 (mayo de 2001): 319–29. http://dx.doi.org/10.1017/s0022377801001118.

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Conditions for exciting higher-harmonic electrostatic dust cyclotron waves in a collisional dusty plasma are investigated. Linear kinetic theory is used, and the effects of neutral–charged particle collisions are taken into account. In a plasma with negatively charged dust, electrostatic dust cyclotron waves can be driven unstable by ions drifting along the magnetic field. It is found that, under certain conditions, the critical ion drift for the excitation of higher-harmonic electrostatic dust cyclotron waves (i.e., ω ∼ mΩd, where m [ges ] 2 and Ωd is the dust cyclotron frequency) can be comparable to the critical drift for the excitation of the fundamental cyclotron harmonic (i.e., ω ∼ Ωd). Stability conditions are investigated for ranges of parameters that may be relevant to laboratory dusty plasmas.
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Tesis sobre el tema "Electrostatic ion cyclotron"

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Teodorescu, Catalin. "Laboratory investigation of electrostatic ion waves modified by parallel-ion-velocity shear". Morgantown, W. Va. : [West Virginia University Libraries], 2003. http://etd.wvu.edu/templates/showETD.cfm?recnum=2901.

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Thesis (Ph. D.)--West Virginia University, 2003.
Title from document title page. Document formatted into pages; contains xiv, 215 p. : ill. Vita. Includes abstract. Includes bibliographical references (p. 107-113).
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2

Zakharov, Venjamin E. y Claudia-Veronika Meister. "Acceleration and heating in the auroral magnetosphere by current driven electrostatic ion cyclotron turbulence". Universität Potsdam, 2000. http://opus.kobv.de/ubp/volltexte/2007/1495/.

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A numerical MHD model is developed to investigate acceleration and heating of both thermal and auroral plasma. This is done for magnetospheric flux tubes in which intensive field aligned currents flow. To give each of these tubes, the empirical Tsyganenko model of the magnetospheric field is used. The parameters of the background plasma outside the flux tube as well as the strength of the electric field of magnetospheric convection are given. Performing the numerical calculations, the distributions of the plasma densities, velocities, temperatures, parallel electric field and current, and of the coefficients of thermal conductivity are obtained in a self-consistent way. It is found that EIC turbulence develops effectively in the thermal plasma. The parallel electric field develops under the action of the anomalous resistivity. This electric field accelerates both the thermal and the auroral plasma. The thermal turbulent plasma is also subjected to an intensive heating. The increase of the plasma of the Earth's ionosphere. Besides, studying the growth and dispersion properties of oblique ion cyclotron waves excited in a drifting magnetized plasma, it is shown that under non-stationary conditions such waves may reveal the properties of bursts of polarized transverse electromagnetic waves at frequencies near the patron gyrofrequency.
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3

Nakata, Michael Takeshi. "Simulating the FTICR-MS Signal of a Decaying Beryllium-7 Ion Plasma in a 2D Electrostatic PIC Code". Diss., CLICK HERE for online access, 2010. http://contentdm.lib.byu.edu/ETD/image/etd3370.pdf.

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4

Tsai, Tsung-Hua y 蔡宗華. "Relativistic Electrostatic Ion Cyclotron Instabilities Driven by MeV Alpha Particles in Non-uniform Magnetic Fields". Thesis, 2009. http://ndltd.ncl.edu.tw/handle/79158774982382583669.

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博士
國立成功大學
物理學系碩博士班
97
In this dissertation, we would like to investigate the characteristics of relativistic ion cyclotron instability (RICI) in non-uniform (and uniform) magnetized plasmas with typical fusion parameters. When a uniform magnetic field is considered, an electro-static dispersion relation is derived from the gyro-kinetic method and further analyzed theoretically and numerically. A corresponding hybrid particle-in-cell simulation is performed to verify the theoretical analysis. In addition, through theory and simulation, we verify that a positive frequency difference between wave frequency and the harmonic cyclotron frequency should not be a necessary condition for driving electrostatic relativistic cyclotron instabilities. To study relativistic instability in a non-uniform magnetic field, we employ hybrid particle-in-cell simulations and observe that this kind of instability can survive even when the magnetic variation is much greater than the Lorentzs factor of α-particles minus one and that it is able to excite localized modes around the minimum of an external magnetic field. Also, such instability plays an important role with regard to affecting the dynamics of the fast ions. An analytic theory based on expansion around the condition of absolute instability has been developed and predicts that there will be localized eigenmodes forming and bounded around the magnetic minimum; the spatial structures, growth rates and frequencies of the electrostatic modes observed are in good agreement with the simulation results.
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Libros sobre el tema "Electrostatic ion cyclotron"

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Workshop, on the Current-Driven Electrostatic Ion-Cyclotron Instability (1987 Innsbruck Austria). Proceedings of the Workshop on the Current-Driven Electrostatic Ion-Cyclotron Instability: July 9/10, 1987, Innsburck, Austria. Singapore: World Scientific, 1988.

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Current Driven Electrostatic Ion Cyclotron Instability: Proceedings O the Workshop on the Current Driven Electrostatic Ion Cyclotron. World Scientific Pub Co Inc, 1988.

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Capítulos de libros sobre el tema "Electrostatic ion cyclotron"

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Okuda, H., C. Z. Cheng y W. W. Lee. "Anomalous Diffusion and Ion Heating in the Presence of Electrostatic Hydrogen Cyclotron Instabilities". En Physics of Auroral Arc Formation, 283–87. Washington, D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm025p0283.

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Mertens, Susanne. "Active Background Reduction with Electron Cyclotron Resonance". En Background Processes in the Electrostatic Spectrometers of the KATRIN Experiment, 137–55. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01177-6_8.

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Mallick, Chinmoy, Mainak Bandyopadhyay y Rajesh Kumar. "Evolution of Microwave Electric Field on Power Coupling to Plasma during Ignition Phase". En Selected Topics in Plasma Physics. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.92011.

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During the gas ignition process, the plasma and the microwave electric fields are evolved with time together in the plasma volume. The spatio-temporal evolution pattern of microwave-radiated plasma parameters is reported here, highlighting the role of these electric fields on power coupling processes. Evolutions of electric field and so power coupling processes are calculated using the finite element method (FEM). It is observed that the main power coupling mechanism is electron cyclotron resonance (ECR) method; however, with the evolution of plasma, the mode shifts from ECR to off-ECR-type heating with time. Off-ECR heating in the form of upper hybrid resonance (UHR) method, electrostatic (ES) ion acoustic wave heating method is important heating mechanisms during highly dense plasma condition, when density is above critical density for launched frequency, 2.45 GHz. The conclusions on the shifting of heating mechanisms are also drawn based on the 3D maps of spatio-temporal plasma density and hot electron temperature evolution.
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Actas de conferencias sobre el tema "Electrostatic ion cyclotron"

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Merlino, R. L., S. Kim, N. D'Angelo y Gurudas I. Ganguli. "The Effect of Ion Flow Shear on Electrostatic Ion-Cyclotron Waves". En IEEE Conference Record - Abstracts. 2005 IEEE International Conference on Plasma Science. IEEE, 2005. http://dx.doi.org/10.1109/plasma.2005.359504.

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Zhang, Y. S. y J. E. Scharer. "Electron cyclotron wave scattering by a probe launched electrostatic ion wave". En International Conference on Plasma Sciences (ICOPS). IEEE, 1993. http://dx.doi.org/10.1109/plasma.1993.593510.

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Chow, V. W. y M. Rosenberg. "A note on electrostatic ion/dust cyclotron instabilities in dusty plasmas". En Seventh workshop on the physics of dusty plasmas. AIP, 1998. http://dx.doi.org/10.1063/1.56662.

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Ono, Masayuki. "Cold electrostatic ion cyclotron waves for preionization and IBW launching in LHD". En The thirteenth topical conference on radio frequency power in plasmas. AIP, 1999. http://dx.doi.org/10.1063/1.59698.

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Khaira, Vibhooti y G. Ahirwar. "Dispersion relation of electrostatic ion cyclotron waves in multi-component magneto-plasma". En INTERNATIONAL CONFERENCE ON EMERGING INTERFACES OF PLASMA SCIENCE AND TECHNOLOGY (EIPT-2015): Proceedings of the International Conference on Emerging Interfaces of Plasma Science and Technology. AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4926700.

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Singh, Sukhmander. "Dispersion equation for electrostatic ion cyclotron instability under the effect of ionization in a dusty plasma". En 2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5037589.

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Spektor, Rostislav y Edgar Choueiri. "Excitation and Propagation of Electrostatic Ion Cyclotron Waves in rf-Sustained Plasmas of Interest to Propulsion Research". En 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-4095.

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Diab, Raymond, Seung-Gyou Baek, Paul Bonoli, Thomas G. Jenkins, Masayuki Ono y David Smithe. "Particle-in-cell simulations of parasitic electrostatic wave excitation in the ion cyclotron range of frequencies and high harmonic fast wave regimes". En 24TH TOPICAL CONFERENCE ON RADIO-FREQUENCY POWER IN PLASMAS. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0164928.

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Informes sobre el tema "Electrostatic ion cyclotron"

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Ono, Masayuki. Investigation of electrostatic waves in the ion cyclotron range of frequencies in L-4 and ACT-1. Office of Scientific and Technical Information (OSTI), mayo de 1993. http://dx.doi.org/10.2172/10160802.

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Ono, Masayuki. Investigation of electrostatic waves in the ion cyclotron range of frequencies in L-4 and ACT-1. Office of Scientific and Technical Information (OSTI), mayo de 1993. http://dx.doi.org/10.2172/6483928.

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