نتایج جستجو برای: accelerator cavity
تعداد نتایج: 95148 فیلتر نتایج به سال:
Abstract In the last decades several types of H-mode cavities have been developed for a wide range of applications. Several drift tube cavities (IH-structure) are in routine operation [1][2]. At the IAP (University of Frankfurt, Germany) a new type of H-mode cavity, the Cross-Bar-H-mode or CH-structure is presently under development. This multicell drift tube cavity is operated in the H 21(0)-m...
This paper describes an X-Band RF system for the Next Linear Collider Test Accelerator.[1] The RF system consists of a 90 MeV injector and a 540 MeV linac. The main components of the injector are two low-Q singlecavity prebunchers and two 0.9-m-long detuned accelerator sections. The linac system consists of six 1.8-mlong detuned and damped detuned accelerator sections powered in pairs. The rf p...
A 5-cell, normal-conducting, 1.3 GHz, standing-wave (SW) cavity was built as a prototype capture accelerator for the ILC positron source. Although the ILC uses predominately superconducting cavities, the capture cavity location in both a high radiation environment and a solenoidal magnetic field requires it to be normal conducting. With the relatively high duty ILC beam pulses (1 msec at 5 Hz) ...
Barrier bucket systems are planned for the SIS100 Synchrotron (part of the future accelerator facility FAIR) and the ESR storage ring to facilitate several longitudinal beam manipulations [1] [2]. In order to achieve a single-sine gap signal of the desired amplitude and quality, effects in the linear and nonlinear region of the RF systems have to be investigated and included in the design of th...
The Cornell ERL is a proposed x-ray source. Part of the design of this ERL is the design of the main linear accelerator (linac) by the Superconducting Radio Frequency group at Cornell. One of the main components of this linac is a network of 7-cell superconducting cavities. Each cavity is a resonator that accelerates beams with the electric field of the so-called fundamental electromagnetic mod...
Open boundary conditions. Since the source current, Eq. 1, extends from z = −∞ to +∞ whereas our computational domain is finite, one has to apply suitable boundary conditions (see also [2]). Consider some accelerator component, residing in a vacuum cavity with attached beam pipe of smaller cross section than the cavity. Generally, the transitions from the pipe to the module have to be included ...
The ILC Linac Group at SLAC is actively pursuing a broad range of R&D to improve the reliability and reduce the cost of the L-band (1.3 GHz) rf system. Current activities include the development of a Marx-style modulator and a 10 MW sheet-beam klystron, construction of an rf distribution system with adjustable power tap-offs and custom hybrids, tests of cavity coupler components to understand r...
For many next-generation high intensity proton accelerator applications including the Spallation Neutron Source (SNS), superconducting (SC) RF provides the technology of choice for the linac. In designing the superconducting cavity, several features, such as peak fields, inter-cell coupling, mechanical stiffness, field flatness, external Q, manufacturability, shunt impedance, higher order mode ...
A ferrite loaded accelerating cavity with a frequency sweep of 18 to 40MHz is studied for a possible upgrade of the CERN accelerator complex. The resonance frequency of a ferrite loaded cavity shifts by applying an external magnetic bias field to the ferrite material by means of changing the relative permeability. We present the electromagnetic design of such a cavity with a special emphasis on...
The cavity resonator modeling for the TESLA TeV–Energy Superconducting Linear Accelerator project is initially introduced. The electromechanical model including Lorentz force detuning and beam loading is applied for analyzing the basic features of the plant. The continuous SIMULINK and digital MATLAB model implementation is developed as a reference for the hardware simulator based on the FPGA –...
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