Sergey A. Antipov Fast Transverse Beam Instability Caused by Electron Cloud Trapped in Combined Function Magnets 9783030024079

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Автор: Sergey A. Antipov
Название: Fast Transverse Beam Instability Caused by Electron Cloud Trapped in Combined Function Magnets
ISBN: 9783030024079
Издательство: Springer
Классификация:

Электричество, магнетизм и электромагнетизм

Физика элементарных частиц и высоких энергий

Математическая физика

Электроника

Полупроводники и сверхпроводники

Математическая теория вычислений

ISBN-10: 3030024075
Обложка/Формат: Hardcover
Страницы: 88
Вес: 0.33 кг.
Дата издания: 2018
Серия: Springer Theses
Язык: English
Издание: 1st ed. 2018
Иллюстрации: 69 tables, color; 55 illustrations, color; 14 illustrations, black and white; xi, 88 p. 69 illus., 55 illus. in color.
Размер: 234 x 156 x 8
Читательская аудитория: Professional & vocational
Основная тема: Physics
Ссылка на Издательство: Link
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Поставляется из: Германии
Описание: This thesis presents profound insights into the origins and dynamics of beam instabilities using both experimental observations and numerical simulations. When the Recycler Ring, a high-intensity proton beam accelerator at Fermi National Accelerator Laboratory, was commissioned, it became evident that the Recycler beam experiences a very fast instability of unknown nature. This instability was so fast that the existing dampers were ineffective at suppressing it. The nature of this phenomenon, alongside several other poorly understood features of the beam, became one of the biggest puzzles in the accelerator community. The author investigated a hypothesis that the instability arises from an interaction with a dense cloud of electrons accompanying the proton beam. He studied the phenomena experimentally by comparing the dynamics of stable and unstable beams, by numerically simulating the build-up of the electron cloud and its interaction with the beam, and by constructing an analytical model of an electron cloud-driven instability with the electrons trapped in combined-function dipole magnets. He has devised a method to stabilize the beam by a clearing bunch, which conclusively revealed that the instability is caused by the electron cloud, trapped in a strong magnetic field. Finally, he conducted measurements of the microwave propagation through a single dipole magnet. These measurements have confirmed the presence of the electron cloud in combined-function magnets.

Дополнительное описание: Chapter1. Electron Cloud in Particle Accelerators.- Chapter2. Beam Dynamics Measurements of the Fast Instability.- Chapter3. Microwave Measurement of the Cloud Density.- Chapter4. Numerical Simulation.- Chapter5. Analytical Model of the Electron Cloud Ins

Fast Transverse Beam Instability Caused by Electron Cloud Trapped in Combined Function Magnets, Sergey A. Antipov