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Radio Frequency Quadrupole Resonator For Linear Accelerator
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Book Synopsis Radio Frequency Quadrupole Resonator for Linear Accelerator by :
Download or read book Radio Frequency Quadrupole Resonator for Linear Accelerator written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An RFQ resonator for a linear accelerator having a reduced level of interfering modes and producing a quadrupole mode for focusing, bunching and accelerating beams of heavy charged particles, with the construction being characterized by four elongated resonating rods within a cylinder with the rods being alternately shorted and open electrically to the shell at common ends of the rods to provide an LC parallel resonant circuit when activated by a magnetic field transverse to the longitudinal axis.
Book Synopsis Radio Frequency Quadrupole and Alternating Phase Focusing Methods Used in Proton Linear Accelerator Technology in the USSR by : Nikita Wells
Download or read book Radio Frequency Quadrupole and Alternating Phase Focusing Methods Used in Proton Linear Accelerator Technology in the USSR written by Nikita Wells and published by . This book was released on 1985-01-01 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The RFQ system has been especially effective in providing the practical means of approaching the space propagation criteria of high current level, low injection energy, adequate reliability, efficiency, and moderate size. Another method of simultaneous acceleration and focusing of ions under Soviet development has been the alternating phase focusing (APF) system, which has recently achieved a successful feasibility proof. Originator supplied keywords included: USSR; Particle beams; Linear accelerators; and Protons.
Download or read book Radio-frequency Quadrupole written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The radio-frequency quadrupole (RFQ) linac structure is being developed for the acceleration of low-velocity ions. Recent experimental tests have confirmed its expected performance and have led to an increased interest in a wide range of possible applications. The general properties of RFQ accelerators are reviewed and beam dynamics simulation results are presented for their use in a variety of accelerating systems. These include the low-beta sections of the Fusion Materials Irradiation Test Accelerator, a 200-MHz proton linear accelerator, and a xenon accelerator for heavy ion fusion.
Book Synopsis Radio-Frequency Quadrupole Accelerators by : Chuan Zhang
Download or read book Radio-Frequency Quadrupole Accelerators written by Chuan Zhang and published by Springer Nature. This book was released on 2023-12-20 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book guides readers into the realm of particle accelerators, which have served as indispensable tools for fundamental research, energy development, medical therapy, industrial applications, national security, etc., since 1924. Towards a new generation of high power proton and ion accelerators, challenges often come from space charge effects, which are most pronounced in low-velocity beams. This book focuses on Radio-Frequency Quadrupole (RFQ) accelerators, one of the most popular front-end structures for accelerator facilities, and their beam physics. Uncovering the limitations of the classic design methods, novel approaches to achieve efficient RFQ accelerators with high beam quality will be presented. In addition, new ideas for possible future developments, such as how to realize long RFQs with high performance and how RFQs can be applied for much higher beam-velocities to shorten large-scale accelerators, will be introduced. To provide a general overview of the research and development of RFQs accelerating particle species from protons to uranium ions, this book uses over 10 real examples developed or proposed in the twenty-first century for various facilities of different dimensions (from large scale e.g. a collider to small scale e.g. university experimental setups). With its rich content and comprehensive scope, this book is an invaluable reference for researchers and graduate students interested in RFQ accelerators and the intricacies of space charge physics in low-velocity beams.
Book Synopsis RF Linear Accelerators by : Thomas P. Wangler
Download or read book RF Linear Accelerators written by Thomas P. Wangler and published by John Wiley & Sons. This book was released on 2008-03-03 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis RF Power Manifold for the Radio Frequency Quadrupole Linear Accelerator by :
Download or read book RF Power Manifold for the Radio Frequency Quadrupole Linear Accelerator written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The properties of rf power manifolds for use in a radio frequency quadrupole accelerator are discussed in the context of a coupled-circuit model. (GHT).
Book Synopsis Electron Radio Frequency Quadrupole (ERFQ) Linear Accelerator by : Serigne Bira Gueye
Download or read book Electron Radio Frequency Quadrupole (ERFQ) Linear Accelerator written by Serigne Bira Gueye and published by . This book was released on 2006 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beam Tests of a Superconducting Radio Frequency Quadrupole Resonator by : Hung Ching
Download or read book Beam Tests of a Superconducting Radio Frequency Quadrupole Resonator written by Hung Ching and published by . This book was released on 1993 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of 400- to 450-MHz RFQ Resonator-cavity Mechanical Designs by :
Download or read book Development of 400- to 450-MHz RFQ Resonator-cavity Mechanical Designs written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the development of the radio-frequency quadrupole (RFQ) linac, the resonator cavity's mechanical design may be a challenge similar in magnitude to that of the development of the accelerator structure itself. Experience with the all-copper 425-MHz RFQ proof-of-principle linac has demonstrated that the resonator cavity must be structurally stiff and easily tunable. This experience has led to development of copper-plated steel structures having vanes that may be moved within a cylinder for tuning. Design of a flexible vane-to-cylinder radio-frequency (rf) joint, the vane, and the cylinder has many constraints dictated by the small-diameter cavities in the 400-MHz-frequency region. Two types of flexible, mechanical vane-to-cylinder rf joints are being developed at Los Alamos: the C-seal and the rf clamp-joint.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanical Features of the ATS RFQ Linear Accelerator by :
Download or read book Mechanical Features of the ATS RFQ Linear Accelerator written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A radio-frequency quadrupole (RFQ) linear accelerator has been constructed and placed in operation on the Los Alamos National Laboratory accelerator test stand (ATS). This accelerator uses an evacuated rf manifold to distribute rf excitation from the 425-MHz rf power supply to the slot-coupled, RFQ vane-cavity, resonator assembly. The RFQ vanes are supported on commercially available copper-plated, linear, resilient C-seals to provide a high-conductivity rf contact that permits aligning and positioning the vanes during tuning, and demounting the vanes for evaluation and modification as necessary. All rf structures are fabricated from stress-relieved, bright-acid copper-plated carbon steel. Measurements made on the accelerator as assembled have demonstrated>8000 vane-cavity Q at the quadrupole's approx. 423.400-MHz accelerating-mode frequency. Operating manifold vacuum of 3 to 6 x 10−8 torr has been observed after rf conditioning; conditioning required 150 h for stable high-power rf operation. Experience to date has indicated the desirability of modifying the vane rf-contact seat configuration to improve assembly and alignment procedures, improving vane-machining processes to increase vane straightness, installing periodic vane-shorting rings to minimize the effect of dipole modes in the quadrupole accelerating structure, and modifying the waveguide-coupling slot in the manifold to improve forward rf power flow.
Book Synopsis Development of RF Accelerating Structures in the Front-end System of Light Ion Particle Accelerators by : Ki Ryung Shin
Download or read book Development of RF Accelerating Structures in the Front-end System of Light Ion Particle Accelerators written by Ki Ryung Shin and published by . This book was released on 2014 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL) is an RF linear accelerator-based neutron source which utilizes various RF cavity resonators to interact with a traveling particle beam to transfer energy to the beam. The RF cavity resonator generates a strong electromagnetic modal field specifically shaped at an operating frequency to provide good energy efficiency. Having a reliable cavity RF field is therefore, important to sustain performance and stable operation of the accelerator system. Although the SNS system is already built and in use, some parts still need to be improved to achieve better performance and higher operational reliability. Our study can provide potential improvements in existing accelerators as well as future ones. For example, the performance and reliability of the radio frequency quadrupole (RFQ) and the rebuncher cavities in the low beam energy front-end section of the SNS accelerators, have been improved by applying our newly proposed design ideas. In this dissertation, we propose four development directions for RFQ and rebuncher cavity to enhance its performance and field stabilization. These include: 1) a practical design method to determine RFQ fabrication tolerance based on extensive 3D simulations to help reduce RFQ fabrication errors. 2) alternative RFQ designs to improve RFQ mode separation with lower fabrication, tuning costs and structural reliability. 3) a multi-section RFQ with new RF coupling scheme which is validated with scaled prototyping. This design eliminates spurious electromagnetic modes and can decrease manufacturing and tuning costs of long coupled RFQs. 4) a double gap rebuncher cavity design instead of a single cavity for decreased gap voltage and peak electric field. This design modification can reduce X-ray radiation intensity which can address safety problems in the current accelerator front-end area. A summary of our proposed solutions and contributions are presented in this dissertation paper.
Book Synopsis Modeling and Analysis of Radio Frequency Structures Using an Equivalent Circuit Methodology with Application to Charged Particle Accelerator RF Resonators by : John J. Vincent
Download or read book Modeling and Analysis of Radio Frequency Structures Using an Equivalent Circuit Methodology with Application to Charged Particle Accelerator RF Resonators written by John J. Vincent and published by . This book was released on 1996 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rand Report written by Rand Corporation and published by . This book was released on 1985 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cyclotrons and Their Applications by : John Christopher Cornell
Download or read book Cyclotrons and Their Applications written by John Christopher Cornell and published by World Scientific. This book was released on 1996 with total page 894 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multipactor in Accelerating Cavities by : Valery D. Shemelin
Download or read book Multipactor in Accelerating Cavities written by Valery D. Shemelin and published by Springer Nature. This book was released on 2020-08-10 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is written by two world-recognized experts in radio frequency (RF) systems for particle accelerators and is based on many years of experience in dealing with the multipactor phenomenon. The authors introduce and review multipactor in RF cavities for scientists and engineers working in the field of accelerator physics and technology. The multipactor phenomenon of unintended electron avalanches occurs in the RF cavities commonly and quite often is a performance-limiting factor. The book starts with an Introductory Overview which contains historical observations and brief description of most common aspects of the phenomenon. Part I deals with the multipactor in a flat gap. It starts with description of the dynamics of electrons, derivation of the stability condition and analyzing influence of several factors on the multipactor. Then, the initial considerations are extended to derive a generalized phase stability and finally a particular case, called ping-pong multipacting, is considered. The part one is concluded with a brief review of computer codes used in multipactor simulations. Part II is dedicated to the multipactor in crossed RF fields, the typical situation in accelerating cavities. Two cases of MP are considered: a two-point multipactor near the cavity equator in elliptical cavities and a one-point multipactor. Part III describes optimization of the cavity shapes geared toward designing multipactor-free structures. The book will serve as an importance reference on multipactor for those involved in developing and operating radio frequency cavities for particle accelerators.
Book Synopsis Compact Radio-frequency Quadrupoles for Industrial and Medical Applications by : Hermann Winrich Pommerenke
Download or read book Compact Radio-frequency Quadrupoles for Industrial and Medical Applications written by Hermann Winrich Pommerenke and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis involves the development of two radio-frequency quadrupole particle accelerators (RFQ) operating at 750 MHz. The first part covers radio-frequency (RF) design studies of the proton PIXE-RFQ. RF measurement results and tuning procedure are presented, showing very good agreement with simulations. The second part reports the development of the Carbon-RFQ for cancer therapy. The Carbon-RFQ features trapezoidal vanes whose fields are described using a novel semi-analytic approach. Dipole modes were detuned by a novel cavity length adjustment technique.eng
