Title :
Measurements on a Superconducting Accelerating Cavity for DORIS
Author :
Bauer, W. ; Brandelik, A. ; Citron, A. ; Graf, F. ; Halbritter, H. ; Herz, W. ; Noguchi, S. ; Lehm, R. ; Lehmann, W. ; Szecsi, L.
Author_Institution :
Kernforschungszentrum Karlsruhe GmbH, Institut fÿr Kernphysik II Postfach 3640, D-7500 Karlsruhe, Federal Republic of Germany
fDate :
6/1/1981 12:00:00 AM
Abstract :
An experiment has been set up to test a superconducting cavity in the e+-e--storage ring DORIS (DESY, Hamburg). The cavity achieved accelerating field gradients Eacc of 3.2 - 4 MV/m and Q-values up to 6×109. The input coupling was tested up to 45 kW at total reflection, corresponding to 90 kW at matched conditions. Two higher mode couplers have shown 102 ¿ Qext ¿ 104 for all modes below the beam tube cutoff frequency and >108 for the fundamental mode. The completed cryogenic system works as planned.
Keywords :
Acceleration; Couplers; Frequency; Loss measurement; Magnetic field measurement; Magnetic shielding; Power measurement; Pulse measurements; Storage rings; System testing;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1981.4332075
