Low Level Radio Frequency Systems
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Author |
: Stefan Simrock |
Publisher |
: Springer Nature |
Total Pages |
: 396 |
Release |
: 2022-03-02 |
ISBN-10 |
: 9783030944193 |
ISBN-13 |
: 3030944190 |
Rating |
: 4/5 (93 Downloads) |
Synopsis Low-Level Radio Frequency Systems by : Stefan Simrock
This book begins with an overview of the RF control concepts and strategies. It then introduces RF system models for optimizing the system parameters to satisfy beam requirements and for controller design. In addition to systematically discussing the RF field control algorithms, it presents typical architecture and algorithms for RF signal detection and actuation. Further, the book addresses the analysis of the noise and nonlinearity in LLRF systems to provide a better understanding of the performance of the RF control system and to specify the performance requirements for different parts of the RF system. Today, accelerators require increased RF stability and more complex operation scenarios, such as providing beam for different beam lines with various parameters, and as a result LLRF systems are becoming more critical and complex. This means that LLRF system developers need have extensive knowledge of the entire accelerator complex and a wide range of other areas, including RF and digital signal processing, noise analysis, accelerator physics and systems engineering. Providing a comprehensive introduction to the basic theories, algorithms and technologies, this book enables LLRF system developers to systematically gain the knowledge required to specify, design and implement LLRF systems and integrate them with beam acceleration. It is intended for graduate students, professional engineers and researchers in accelerator physics.
Author |
: John W. M. Rogers |
Publisher |
: Artech House |
Total Pages |
: 315 |
Release |
: 2013-10-01 |
ISBN-10 |
: 9781608075379 |
ISBN-13 |
: 1608075370 |
Rating |
: 4/5 (79 Downloads) |
Synopsis Radio Frequency System Architecture and Design by : John W. M. Rogers
Communication devices such as smart phones, GPS systems, and Bluetooth, are now part of our daily lives more than ever before. As our communication equipment becomes more sophisticated, so do the radios and other hardware required to enable that technology. Common radio architectures are required to make this technology work seamlessly. This resource describes practical aspects of radio frequency communications systems design, bridging the gap between system-level design considerations and circuit-level design specifications. Industry experts not only provide detailed calculations and theory to determine block level specifications, but also discuss basic theory and operational concepts. This resource also includes extensive, up-to-date application examples.
Author |
: DIANE Publishing Company |
Publisher |
: DIANE Publishing |
Total Pages |
: 50 |
Release |
: 1995-04 |
ISBN-10 |
: 0788116908 |
ISBN-13 |
: 9780788116902 |
Rating |
: 4/5 (08 Downloads) |
Synopsis Telecommunications by : DIANE Publishing Company
Author |
: Hooman Darabi |
Publisher |
: Cambridge University Press |
Total Pages |
: 783 |
Release |
: 2020-03-12 |
ISBN-10 |
: 9781107194755 |
ISBN-13 |
: 110719475X |
Rating |
: 4/5 (55 Downloads) |
Synopsis Radio Frequency Integrated Circuits and Systems by : Hooman Darabi
Equips students with essential industry-relevant knowledge through in-depth explanations, practical applications, examples, and exercises.
Author |
: Themistoklis Mastoridis |
Publisher |
: Stanford University |
Total Pages |
: 216 |
Release |
: 2005 |
ISBN-10 |
: STANFORD:nz794nw1943 |
ISBN-13 |
: |
Rating |
: 4/5 (43 Downloads) |
Synopsis Radio Frequency Station-beam Dynamics Interaction in Circular Accelerators by : Themistoklis Mastoridis
The longitudinal beam dynamics in circular accelerators is mainly defined by the interaction of the beam current with the accelerating Radio Frequency (RF) stations. For stable operation, Low Level RF (LLRF) feedback systems are employed to reduce coherent instabilities and regulate the accelerating voltage. The LLRF system design has implications for the dynamics and stability of the closed-loop RF systems as well as for the particle beam, and is very sensitive to the operating range of accelerator currents and energies. Stability of the RF loop and the beam are necessary conditions for reliable machine operation. This dissertation describes theoretical formalisms and models that determine the longitudinal beam dynamics based on the LLRF implementation, time domain simulations that capture the dynamic behavior of the RF station-beam interaction, and measurements from the Positron-Electron Project (PEP-II) and the Large Hadron Collider (LHC) that validate the models and simulations. These models and simulations are structured to capture the technical characteristics of the system (noise contributions, non-linear elements, and more). As such, they provide useful results and insight for the development and design of future LLRF feedback systems. They also provide the opportunity to study diverse longitudinal beam dynamics effects such as coupled-bunch impedance driven instabilities and single bunch longitudinal emittance growth. Coupled-bunch instabilities and RF station power were the performance limiting effects for PEP-II. The sensitivity of the instabilities to individual LLRF parameters, the effectiveness of alternative operational algorithms, and the possible tradeoffs between RF loop and beam stability were studied. New algorithms were implemented, with significant performance improvement leading to a world record current during the last PEP-II run of 3212 mA for the Low Energy Ring. Longitudinal beam emittance growth due to RF noise is a major concern for LHC. Simulations studies and measurements were conducted that clearly show the correlation between RF noise and longitudinal bunch emittance, identify the major LLRF noise contributions, and determine the RF component dominating this effect. With these results, LHC upgrades and alternative algorithms are evaluated to reduce longitudinal emittance growth during operations. The applications of this work are described with regard to future machines and analysis of new technical implementations, as well as to possible future work which would continue the directions of this dissertation.
Author |
: Thomas P. Wangler |
Publisher |
: John Wiley & Sons |
Total Pages |
: 476 |
Release |
: 2008-03-03 |
ISBN-10 |
: 3527406808 |
ISBN-13 |
: 9783527406807 |
Rating |
: 4/5 (08 Downloads) |
Synopsis RF Linear Accelerators by : Thomas P. Wangler
Dieses einschlägige Lehrbuch, entwickelt auf der Grundlage der Ausbildung an der US Particle Accelerator School, schließt eine Lücke in der verfügbaren Literatur zum Thema Hochfrequenz-Linearbeschleuniger, kurz RF-Linac. Nach einer Erläuterung der naturwissenschaftlichen Grundlagen und der neuesten technologischen Eckdaten stellt diese zweite Auflage neueste RF-Linacs, spezialisierte Systeme, Systeme mit Supraleitern und verschiedene Spezialverfahren vor. Übungsaufgaben an den Kapitelenden erleichtern das Einprägen und das Nacharbeiten von Vorlesungen.
Author |
: National Research Council |
Publisher |
: National Academies Press |
Total Pages |
: 48 |
Release |
: 2009-10-28 |
ISBN-10 |
: 9780309132428 |
ISBN-13 |
: 0309132428 |
Rating |
: 4/5 (28 Downloads) |
Synopsis Toward a Universal Radio Frequency System for Special Operations Forces by : National Research Council
The U.S. Special Operations Command (SOCOM) was formed in response to the failed rescue attempt in 1980 of American hostages held by Iran. Among its key responsibilities, SOCOM plans and synchronizes operations against terrorist networks. Special operations forces (SOF) often operate alone in austere environments with only the items they can carry, which makes equipment size, weight, and power needs especially important. Specialized radios and supporting equipment must be carried by the teams for their radio-frequency (RF) operations. As warfighting demands on SOCOM have intensified, SOCOM's needs for significantly improved radio-frequency (RF) systems have increased. Toward a Universal Radio Frequency System for Special Operations Forces examines the current state of the art for both handheld and manpackable platform-mounted RF systems, and determines which frequencies could be provided by handheld systems. The book also explores whether or not a system that fulfills SOF's unique requirements could be deployed in a reasonable time period. Several recommendations are included to address these and other issues.
Author |
: Toshiyuki Shirai |
Publisher |
: Academic Press |
Total Pages |
: 386 |
Release |
: 2023-05-25 |
ISBN-10 |
: 9780323991926 |
ISBN-13 |
: 0323991920 |
Rating |
: 4/5 (26 Downloads) |
Synopsis Advances in Accelerators and Medical Physics by : Toshiyuki Shirai
Radiotherapy is now one of the major cancer treatments. The field of accelerator and medical physics is important and growing to support high precision cancer radiotherapy. Advances in Accelerators and Medical Physics provides in-depth and comprehensive coverage of the basic concepts in x-ray therapy, electron beam therapy, particle therapy, boron neutron capture therapy, and molecular imaging and therapy. Novel technologies such as FLASH therapy and laser ion accelerator are also introduced. Each section of the book presents the current state of accelerators, irradiation methods and therapy technologies, as well as future trends in advanced research. This book will serve as a key resource for researchers and students to find all information on latest cancer radiotherapy technologies and methods. - Offers a deep dive into fundamental accelerator and medical physics techniques and technologies used in cancer radiotherapy - Considers updated status at hospitals and clinical facilities, and future research trends - Covers advanced research, development and novel technologies - Chapters written by experts from the Particle Accelerator Society of Japan(PASJ) and the Japan Society of Medical Physics (JSMP)
Author |
: Fábio Passos |
Publisher |
: Springer Nature |
Total Pages |
: 198 |
Release |
: 2020-07-11 |
ISBN-10 |
: 9783030472474 |
ISBN-13 |
: 3030472477 |
Rating |
: 4/5 (74 Downloads) |
Synopsis Automated Hierarchical Synthesis of Radio-Frequency Integrated Circuits and Systems by : Fábio Passos
This book describes a new design methodology that allows optimization-based synthesis of RF systems in a hierarchical multilevel approach, in which the system is designed in a bottom-up fashion, from the device level up to the (sub)system level. At each level of the design hierarchy, the authors discuss methods that increase the design robustness and increase the accuracy and efficiency of the simulations. The methodology described enables circuit sizing and layout in a complete and automated integrated manner, achieving optimized designs in significantly less time than with traditional approaches.
Author |
: Mamun Bin Ibne Reaz |
Publisher |
: BoD – Books on Demand |
Total Pages |
: 130 |
Release |
: 2019-03-27 |
ISBN-10 |
: 9781789857634 |
ISBN-13 |
: 1789857635 |
Rating |
: 4/5 (34 Downloads) |
Synopsis RF Systems, Circuits and Components by : Mamun Bin Ibne Reaz
Radio frequency (RF) refers to frequencies between the upper limit of audio frequencies (> 20 KHz) and the lower limit of infrared frequencies (