Title :
Adaptive impedance analysis of grooved surface using the finite element method
Author_Institution :
SLAC, Menlo Park
Abstract :
Grooved surface is proposed to reduce the secondary emission yield in a dipole and wiggler magnet of International Linear Collider. An analysis of the impedance of the grooved surface based on adaptive finite element is presented in this paper. The performance of the adaptive algorithms, based on an element-element h- refinement technique, is assessed. The features of the refinement indictors, adaptation criteria and error estimation parameters are discussed.
Keywords :
accelerator magnets; beam handling techniques; finite element analysis; wigglers; International Linear Collider; adaptive impedance analysis; element-element h-refinement technique; finite element method; grooved surface; secondary emission yield; wiggler magnet; Adaptive algorithm; Costs; Equations; Error analysis; Finite element methods; Least squares approximation; Magnetic analysis; Smoothing methods; Surface impedance; Undulators;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440518
