Title :
Design and Test of a Superconducting Quarter-Wave-Resonator
Author :
Steck, M. ; Grieser, M. ; Jaeschke, E. ; Krämer, D. ; Repnow, R. ; Sailer, H.
Author_Institution :
Max-Planck-Institut fÿr Kernphysik, Postfach 103980, D-6900 Heidelberg, Germany
Abstract :
A superconducting quarter-wave-resonator at 325 MHz has been designed that could be used as a debuncher for the Heidelberg postaccelerator. The design study utilized the computer codes SUPERFISH and URMEL as well as a theory considering the quarter-wave-resonator as a piece of transmission line shorted at one end. These calculations were used to optimize Hp/¿acc, Ep/¿acc and U/¿acc2. According to measurements with a model resonator the copper body of a first prototype resonator has been machined. In first experiments with an electrochemically plated lead surface an unloaded quality Q0 = 6 × 107 has been measured. The highest accelerating field obtained in that test amounted to ¿acc = 1.8 MV/m at Q0 = 1.0 × 107.
Keywords :
Acceleration; Conductors; Copper; Frequency; Magnetic field measurement; Power transmission lines; Superconducting transmission lines; Testing; Transmission line measurements; Transmission line theory;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1985.4334439
