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211 results on '"Klingbeil, Harald"'

20. Longitudinal rms emittance preservation during adiabatic capture for Gaussian beams

Author

Bast, Denys, Hartel, Uta, and Klingbeil, Harald

Subjects
Physics - Accelerator Physics
Abstract

This paper presents an analysis of the emittance preservation during a heavy ion bunching process. This analysis aims at finding the correlation between the rms emittance of a coasting beam and that of the resulting bunches. The emittance of a Gaussian coasting beam bunched adiabatically in synchrotrons is investigated using theoretical considerations and particle tracking simulations. New results are presented on the relation between the emittance before and after the bunching process. It is found that a constant factor can be determined to describe this relation. This factor can be used to avoid time-consuming simulations. If the rms emittance is known before the bunching process, it can be calculated for the bunched beam afterwards. This also makes it possible to determine the required bucket area for a certain filling ratio., Comment: 7 pages, 3 figures

Published
2019

22. Closed orbit correction at synchrotrons for symmetric and near-symmetric lattices

Author

Mirza, Sajjad Hussain, Singh, Rahul, Forck, Peter, and Klingbeil, Harald

Subjects
Physics - Accelerator Physics
Abstract

This contribution compiles the benefits of lattice symmetry in the context of closed orbit correction. A symmetric arrangement of BPMs and correctors results in structured orbit response matrices of Circulant or block Circulant type. These forms of matrices provide favorable properties in terms of computational complexity, information compression and interpretation of mathematical vector spaces of BPMs and correctors. For broken symmetries, a nearest-Circulant approximation is introduced and the practical advantages of symmetry exploitation are demonstrated with the help of simulations and experiments in the context of FAIR synchrotrons.

Published
2019
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23. Theoretical Foundations of Synchrotron and Storage Ring RF Systems

Author

Klingbeil, Harald, Laier, Ulrich, and Lens, Dieter

Subjects
Closed-loop Control, Longitudinal Beam Dynamics, Low-Level RF (LLRF) Systems, Particle Accelerator Technology, RF Accelerating Cavities and Power Amplification, Radio Frequency Systems, Synchrotrons, bic Book Industry Communication::P Mathematics & science::PH Physics::PHP Particle & high-energy physics, bic Book Industry Communication::T Technology, engineering, agriculture::TJ Electronics & communications engineering::TJF Electronics engineering::TJFN Microwave technology, bic Book Industry Communication::P Mathematics & science::PD Science: general issues::PDD Scientific standards::PDDM Mensuration & systems of measurement, bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBN Nanotechnology, bic Book Industry Communication::P Mathematics & science::PB Mathematics::PBW Applied mathematics::PBWH Mathematical modelling
Abstract

This is an open access book. This course-tested text is an ideal starting point for engineers and physicists entering the field of particle accelerators. The fundamentals are comprehensively introduced, derivations of essential results are provided and a consistent notation style used throughout the book allows readers to quickly familiarize themselves with the field, providing a solid theoretical basis for further studies. Emphasis is placed on the essential features of the longitudinal motion of charged particle beams, together with the corresponding RF generation and power amplification devices for synchrotron and storage ring systems. In particular, electrical engineering aspects such as closed-loop control of system components are discussed. The book also offers a valuable resource for graduate students in physics, electronics engineering, or mathematics looking for an introductory and self-contained text on accelerator physics.

Published
2015
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44. Modeling Longitudinal Oscillations of Bunched Beams in Synchrotrons

Author

Klingbeil, Harald, Lens, Dieter, Mehler, Monika, and Zipfel, Bernhard

Subjects
Physics - Accelerator Physics
Abstract

Longitudinal oscillations of bunched beams in synchrotrons have been analyzed by accelerator physicists for decades, and a closed theory is well-known [1]. The first modes of oscillation are the coherent dipole mode, quadrupole mode, and sextupole mode. Of course, these modes of oscillation are included in the general theory, but for developing RF control systems, it is useful to work with simplified models. Therefore, several specific models are analyzed in the paper at hand. They are useful for the design of closed-loop control systems in order to reach an optimum performance with respect to damping the different modes of oscillation. This is shown by the comparison of measurement and simulation results for a specific closed-loop control system., Comment: 14 pages, 14 figures

Published
2010

45. Theoretical Fundamentals

Author

Klingbeil, Harald, Laier, Ulrich, Lens, Dieter, Chao, Alexander, Series editor, Fabjan, Christian W., Series editor, Zimmermann, Frank, Series editor, Klingbeil, Harald, Laier, Ulrich, and Lens, Dieter

Published
2015
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46. RF Cavities

Author

Klingbeil, Harald, Laier, Ulrich, Lens, Dieter, Chao, Alexander, Series editor, Fabjan, Christian W., Series editor, Zimmermann, Frank, Series editor, Klingbeil, Harald, Laier, Ulrich, and Lens, Dieter

Published
2015
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47. Power Amplifiers

Author

Klingbeil, Harald, Laier, Ulrich, Lens, Dieter, Chao, Alexander, Series editor, Fabjan, Christian W., Series editor, Zimmermann, Frank, Series editor, Klingbeil, Harald, Laier, Ulrich, and Lens, Dieter

Published
2015
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48. Advanced Topics

Author

Klingbeil, Harald, Laier, Ulrich, Lens, Dieter, Chao, Alexander, Series editor, Fabjan, Christian W., Series editor, Zimmermann, Frank, Series editor, Klingbeil, Harald, Laier, Ulrich, and Lens, Dieter

Published
2015
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49. Closed-Loop Control

Author

Klingbeil, Harald, Laier, Ulrich, Lens, Dieter, Chao, Alexander, Series editor, Fabjan, Christian W., Series editor, Zimmermann, Frank, Series editor, Klingbeil, Harald, Laier, Ulrich, and Lens, Dieter

Published
2015
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50. RF Acceleration

Author

Klingbeil, Harald, Laier, Ulrich, Lens, Dieter, Chao, Alexander, Series editor, Fabjan, Christian W., Series editor, Zimmermann, Frank, Series editor, Klingbeil, Harald, Laier, Ulrich, and Lens, Dieter

Published
2015
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