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Radio Frequency Quadrupole
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Book Synopsis Collection of Papers on the Radio-frequency Quadrupole (RFQ) Linear Accelerator by : Los Alamos scientific laboratory. Accelerator technology division personnel
Download or read book Collection of Papers on the Radio-frequency Quadrupole (RFQ) Linear Accelerator written by Los Alamos scientific laboratory. Accelerator technology division personnel and published by . This book was released on 1981* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Radio-frequency Quadrupole written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In many Laboratories, great emphasis now is placed on the development of linear accelerators with very large ion currents. To achieve this goal, a primary concern must be the low-velocity part of the accelerator, where the current limit is determined and where most of the emittance growth occurs. The use of magnetic focusing, the conflicting requirements in the choice of linac frequency, and the limitations of high-voltage dc injectors, have tended to produce low-velocity designs that limit overall performance. The radio-frequency quadrupole (RFQ) linear accelerator, invented in the Soviet Union and developed at Los Alamos, offers an attractive solution to many of these low-velocity problems. In the RFQ, the use of RF electric fields for radial focusing, combined with special programming of the bunching, allows high-current dc beams to be captured and accelerated with only small beam loss and low radial emittance growth. Advantages of the RFQ linac include a low injection energy (20 to 50 keV for protons) and a final energy high enough so the beam can be further accelerated with high efficiency in a Wideroee or Alvarez linac. These properties have been confirmed at Los Alamos in a highly successful experimental test performed during the past year. The success of this test and the advances in RFQ design procedures have led to the adoption of this linac for a wide range of applications. The beam-dynamics parameters of three RFQ systems are described. These are the final design for the protytype test of the Fusion Materials Irradiation Test (FMIT) accelerator, the final design for the prototype test of the Pion Generator for Medical Irradiations (PIGMI), and an improved low-velocity linac 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 Radio-frequency Quadrupole Linear Accelerator by :
Download or read book Radio-frequency Quadrupole Linear Accelerator 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) is a new linear accelerator concept in which rf electric fields are used to focus, bunch, and accelerate the beam. Because the RFQ can provide strong focusing at low velocities, it can capture a high-current dc ion beam from a low-voltage source and accelerate it to an energy of 1 MeV/nucleon within a distance of a few meters. A recent experimental test at the Los Alamos Scientific Laboratory (LASL) has confirmed the expected performance of this structure and has stimulated interest in a wide variety of applications. The general properties of the RFQ are reviewed and examples of applications of this new accelerator are presented.
Book Synopsis Preliminary Concept for the Project X CW Radio Frequency Quadrupole (RFQ). by :
Download or read book Preliminary Concept for the Project X CW Radio Frequency Quadrupole (RFQ). written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Operational Characteristics of a 100-mA, 2-MeV Radio-frequency Quadrupole by :
Download or read book Operational Characteristics of a 100-mA, 2-MeV Radio-frequency Quadrupole written by and published by . This book was released on 1993 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 100-mA, 2.07-MeV Radio-Frequency Quadrupole (RFQ III) has been commissioned and operated routinely on the Accelerator Test Stand (ATS) [1] at Los Alamos National Laboratory. To characterize the RFQ output beam dynamics, measurements were made of the beam transmission and of the transverse and longitudinal phase-space distributions. Data were taken for different RFQ III operating conditions and compared to simulations.
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
Book Synopsis Radio-frequency Quadrupole Vane-tip Geometries by :
Download or read book Radio-frequency Quadrupole Vane-tip Geometries written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio-frequency quadrupole (RFQ) linacs are becoming widely accepted in the accelerator community. They have the remarkable capability of simultaneously bunching low-energy ion beams and accelerating them to energies at which conventional accelerators can be used, accomplishing this with high-transmission efficiencies and low-emittance growths. The electric fields, used for radial focusing, bunching, and accelerating, are determined by the geometry of the vane tips. The choice of the best vane-tip geometry depends on considerations such as the peak surface electric field, per cent of higher multipole components, and ease of machining. We review the vane-tip geometry based on the ideal two-term potential function and briefly describe a method for calculating the electric field components in an RFQ cell with arbitrary vane-tip geometry. We describe five basic geometries and use the prototype RFQ design for the Fusion Materials Irradiation Test (FMIT) accelerator as an example to compare the characteristics of the various geometries.
Book Synopsis Early Operating Experience with the Brookhaven National Laboratory Radio Frequency Quadrupole Accelerator by :
Download or read book Early Operating Experience with the Brookhaven National Laboratory Radio Frequency Quadrupole Accelerator written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Brookhaven National Laboratory polarized H− injection program for the AGS utilizes a Radio Frequency Quadrupole (RFQ) for acceleration between the polarized H− source and the Alvarez Linac. The RFQ accelerator is now in operation with low beam currents. The results of low and high power rf testing will be reported together with initial results of operation in the polarized H− beam line.
Book Synopsis Design, Fabrication, and Testing of the BNL Radio Frequency Quadrupole Accelerator by :
Download or read book Design, Fabrication, and Testing of the BNL Radio Frequency Quadrupole Accelerator written by and published by . This book was released on 1984 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Radio-frequency Quadrupole Accelerator Longitudinal Field Stabilizer by :
Download or read book A Radio-frequency Quadrupole Accelerator Longitudinal Field Stabilizer written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The fields in a 600-MHz model of a radio-frequency quadrupole (RFQ) accelerator have been longitudinally stabilized over 86% of its length. The stabilizing elements consist of four external transverse electromagnetic (TEM) lines. Each line is coupled to the RFQ by two magnetic loops attached to voltage maxima of the TEM line. These resonant lines stabilize the RFQ fields by providing an alternate longitudinal power flow path in the RFQ. Stabilization depends on the TEM line Q and the TEM line RFQ coupling. Each stabilizer coupling-loop location in the RFQ needs to be fully azimuthally stabilized. Substantial coupling between stabilizer elements destroys stabilization. 3 refs., 13 figs., 2 tabs.
Book Synopsis Performance Report on the Ground Test Accelerator Radio-frequency Quadrupole by :
Download or read book Performance Report on the Ground Test Accelerator Radio-frequency Quadrupole written by and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
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 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:
