منابع مشابه
Simulating Dark Current in Nlc Structures
Dark current generation and capture are of great importance in high gradient accelerating structure R&D especially for the NLC which aims to operate at 65 MV/m with specific limits on dark current and RF breakdown rates. Although considerable effort has been devoted to building and testing various types of structures to meet these requirements, few theoretical studies have been done to understa...
متن کاملCoaxial Wire Measurements in Nlc Accelerating Structures
The coaxial wire method provides an experimental way of measuring wake fields without the need for a particle beam. A special setup has been designed and is in the process of being fabricated at SLAC to measure the loss factors and synchronous frequencies of dipole modes in both traveling and standing wave structures for the Next Linear Collider (NLC). The method is described and predictions ba...
متن کاملTransverse Impedance Bench Measurements in Nlc/jlc Accelerating Structures*
The wire method is a more rapid and less costly method to measure impedances of RF components compared to methods using a beam. A setup using a single displaced wire to excite and measure transverse resonant modes in accelerating structures for the Next Linear Collider/ Japanese Linear Collider (NLC/JLC) has been built. The RF signal is coupled into and out of the structure using two matching s...
متن کاملSimulating Composite Structures
different physical or chemical qualities — makes them attractive for manufacturing because they are lightweight and high in strength. However, they also pose unique modeling challenges because of their different constituent materials and orientations. The good news is that you can overcome these challenges using the correct tools. Furthermore, composites are being used reliably to solve real-wo...
متن کاملMinimization of Transverse Wakefields in the Nlc Accelerator Structures*
The progress of a multiple bunches of electrons through several thousand accelerator structures results in a wakefield which if left unchecked will kick successive bunches off the axis of the accelerator and can at the very least dilute the final luminosity of the final colliding beams, or at worst can lead to a BBU (Beam Break Up) instability. In order to damp the wakefields to acceptable leve...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
سال: 2006
ISSN: 0168-9002
DOI: 10.1016/j.nima.2005.11.072