Advanced Study Course

Section C

Experiment 1.2 – High-Frequency Resonators

In accelerators, like the S-DALINAC, high-frequency resonators, so-called cavities, with different shapes are used to accelerate particle bunches or determine beam parameters like position and intensity. The knowledge of the parameters of the used resonators is of paramount importance for operation. In this experiment the properties of a simple cylindrical resonator will be determined. Of great interest are the quality factor without load and the coupling factor which can be varied by insertion depth of the coupling antenna. Aim of the experiment is to gain competences in understanding HF techniques, in describing HF resonators and in applying the knowledge in order to determine the coupling factors as function of the insertion depth of a coupling antenna.