TUNING, CONDITIONING, AND DARK CURRENT MEASUREMENTS OF A NEW GUN CAVITY AT PITZ ⁄

In December 2005, a new gun cavity for the Photo Injector Test Facility at DESY in Zeuthen (PITZ) was tuned with the help of a specially designed tuning device. The tuning procedure and its results as well as RF measurements will be presented. Meanwhile, the cavity was installed in the PITZ facility and conditioned. Dark current measurements with different cathodes were performed and are described. Comparisons to former measurements are made.