TY  - JOUR
A1  - Glock, Hans-Walter
A1  - Marhauser, F.
A1  - Hülsmann, Peter
A1  - Klein, Horst
T1  - Analysis of HOM interaction between cavities by multi-modal s-parameter measurements
T2  - Proceedings of the Particle Accelerator Conference, Vancouver (Kanada), 12.05. - 16.05.1997
N2  - Accelerating cavities exchange HOM power through interconnecting beam pipes in case of signal frequencies above the cut-off of their propagating waveguide modes. This may lead either to improved HOM damping or - in the case most severe - to unwanted phase coherence of fields to the beam. Therefore the knowledge of the scattering properties of a cavity as a line element is needed to analyse all kinds of RF cavity-cavity interaction. Since there is a lack of measurement tools capable to provide a multidimensional scattering matrix at a given frequency point, we have been developing a method for this purpose. It uses a set of 2-port S-parameters of the device under test, embedded in a number of geometrically different RF environments. The application of the method is demonstrated with copper models of TESLA cavities.
Y1  - 2005
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3313
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-20932
SP  - 521
EP  - 523
PB  - IEEE
ER  -