Title:
Coupler development and gap field analysis for the 352 MHz superconducting CH-Cavity*
Author(s):
H. Liebermann, H. Podlech, U. Ratzinger, A. Sauer,
Source:
Institut für Angewandte Physik, Frankfurt, Germany
Vol./Issue/Date:
Year:
2004
Page(s):
Keywords:
Abstract:
The cross-bar H-type (CH) cavity is a multi-gap drift
tube structure based on the H-210 mode currently under development
at IAP Frankfurt and in collaboration with GSI.
Numerical simulations and rf model measurements showed
that the CH-type cavity is an excellent candidate to realize
s.c. multi-cell structures ranging from the RFQ exit energy
up to the injection energy into elliptical multi-cell cavities.
A 19-cell, beta=0.1, 352 MHz, bulk niobium prototype cavity
is under fabrication at the ACCEL-Company, Bergisch-
Gladbach. This paper will present detailed MicroWave
Studio [1] simulations and rf model measurements for the
coupler development of the 352 MHz superconducting CHcavity.
It describes possibilities for coupling into the superconducting
CH-cavity. First results of the measurements
of different coupler concepts, e.g. capacitive and inductive
coupling at different positions of the CH-cavity are reported.
Additionally the rf quadrupole content in CH-type gaps
was investigated quantitatively.
Document:
Reference Id:
86
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