'Landau damping' diaporamas de présentation

WAVES AND INSTABILITIES IN SPACE PLASMAS

WAVES AND INSTABILITIES IN SPACE PLASMAS. TUTORIAL PRESENTED AT THE SUMMER SCHOOL ON BASIC PROCESSES OF TURBULENT PLASMAS SEPTEMBER 23, 2003 HALKIDIKI GREECE. Dennis Papadopoulos University of Maryland USA. ACKNOWLEDGMENT. USED DATA FROM THE FOLLOWING SOURCES

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How helicons started: 1962

How helicons started: 1962. 3kW 17 MHz 500G. UCLA. How helicons started: 1970 - 85. 1 kW, 1 kG, argon n = 1013 cm-3 10X higher than normal. UCLA. In helicon sources, an antenna launches waves in a dc magnetic field. The RF field of these helical waves ionizes the gas.

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Helicons: A Physics Dilemma Solved

Helicons: A Physics Dilemma Solved. Francis F. Chen, UCLA. Tsing Hsua University, Taiwan, March 2008. How helicons started: 1962. 3kW 17 MHz 500G. UCLA. How helicons started: 1970 - 85. 1 kW, 1 kG, argon n = 1013 cm-3 10X higher than normal. UCLA.

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Beam instability theory and modeling

Beam instability theory and modeling. Oliver Boine-Frankenheim. Contents: Introduction Longitudinal instabilities (1D): Microbunching and multi-stream instabilities. Transverse instabilities (2D): Resistive wall instability and Landau damping

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Introduction, observations and motivation Theory Experiments Conclusion

STABILISING INTENSE BEAMS BY LINEAR COUPLING. Elias METRAL. Introduction, observations and motivation Theory Experiments Conclusion. INTRODUCTION. Single-particle trajectory. One particle. Circular design orbit. Low intensity ? Single-particle phenomena

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MD#4 Summary

MD#4 Summary. MD Coordinators: Giulia Papotti, Frank Zimmermann Machine Coordinators (last week): Gianluigi Arduini , Eva Barbara Holzer 3 December 2012. MD#4 Mon ( 26.11 .). p ostponed (QPS access S6-7 RQF/RQD, MKI2 fault in softstart , dump line vacuum);

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Harmonic RF System Technology for Electron Storage Rings Lawrence Berkeley National Laboratory

Harmonic RF System Technology for Electron Storage Rings Lawrence Berkeley National Laboratory. John Byrd Workshop on Advanced Low Emittance Rings Technology 17 May 5-62014. Acknowledgements. Stefano De Santis Matthias Georgsson (Ph.D. thesis) Jorn Jacob

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Calculation of Dielectric Function of a Quark-gluon Plasma

Calculation of Dielectric Function of a Quark-gluon Plasma. Jiang Bing-feng Li Jia-rong IOPP CCNU 2008.4. Outline Motivation Gluon self-energy and dielectric function of QGP calculated with the effective perturbative theory---the HTL resummation technique

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Linhao Zhang, Jingyu Tang Sept. 24, 2019

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System identification for the main linac of CLIC

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Fundamentals of wave kinetic theory

Fundamentals of wave kinetic theory. Introduction to the subject Perturbation theory of electrostatic fluctuations Landau damping - mathematics Physics of Landau damping Unmagnetized plasma waves The plasma dispersion function The dielectric tensor of a magnetized plasma.

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RF Quadrupole Structures for Transverse Landau Damping in Circular Accelerators

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Finite Temperature Effects on VLF-Induced Precipitation

Finite Temperature Effects on VLF-Induced Precipitation. Praj Kulkarni, U.S. Inan and T. F. Bell MURI Review February 18, 2009. Outline. Motivation Review of published results Refractive index surface Importance of ions Open/closed refractive index surfaces Thermal Corrections

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Coherent Beam-Beam Effects at Hadron Colliders Yuri Alexahin

FERMI NATIONAL ACCELERATOR LABORATORY US DEPARTMENT OF ENERGY. f. Coherent Beam-Beam Effects at Hadron Colliders Yuri Alexahin. BBC @ LHC Workshop, SLAC, CA July 2, 2007. Outline. Coherent beam-beam modes: 1+1 bunch oscillations multi-bunch modes

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Coherent Synchro-Betatron Resonance in the FNAL Booster

Coherent Synchro-Betatron Resonance in the FNAL Booster. A. Burov, V. Lebedev. HB 2008. Booster. Booster is a fast cycling proton synchrotron operating at 15 Hz. Transverse Instability.

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Landau damping

Landau damping. effect occurs in systems consisting of a high number of oscillators having different oscillation frequencies and performing a collective motion. L.D. Landau, 1946, J. Phys. USSR 10 (1946) plasma physics N.G. van Kampen, 1955, Physica 21 (1955) mathematics

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Longitudinal beam dynamics simulations ( LOBO code)

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LHC crab cavity impedance - 1 st and 2 nd thoughts

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NASA Grant NNG04GN01G-01

NASA Grant NNG04GN01G-01 A Global Model of the Effects of ELF/VLF Chorus Emissions on Energetic Radiation Belt Electrons PI: Umran S. Inan, Stanford University. A. B.

98 views • 2 slides