Title :
Design of input couplers and endcells for side coupled muffin-tin structures
Author_Institution :
Tech. Univ. Berlin, Germany
Abstract :
The input couplers and endcells for a previously proposed standing wave muffin-tin structure are designed. Thereby the problem is not only to match the coupler but also to choose the endcells in a way that the coupling cells are not excited. The input coupler has to match the external Q of the structure, to the unloaded Q in order to get zero reflection. The endcells are designed to reflect the forward travelling wave in such a way, that only the accelerator cells are excited and not the coupling cells. The calculation of the endcell behaviour as well as the calculation of the external Q´s are deduced from the knowledge of resonant fields only. The external Q´s are calculated with the Kroll-Yu method
Keywords :
accelerator cavities; waveguide couplers; Kroll-Yu method; accelerator cavities; accelerator cells; endcells; forward travelling wave reflection; input couplers design; resonant fields; side coupled muffin-tin structures; standing wave muffin-tin structure; zero reflection; Acceleration; Couplers; Eigenvalues and eigenfunctions; Finite difference methods; Frequency; Impedance; Optical reflection; Resonance; Time domain analysis; Tin;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505138
