IMPROVEMENTS OF THE SAFETY ENVIRONMENT FOR THE UCN-KICKER MAGNET

After a successful test of the UCN-kicker at the end of 2002, its ceramic tube did not survive the HE-beam period 2003, because the metallic joint at its entrance got overheated by some temporarily misguided proton beam, and started to leak. A new ceramic tube has now been inserted with three protective diagnostic elements added in its environment, which should avoid any further damage of this piece of vacuum tube. An additional benefit of this upgrade is the improved awareness for minimizing the beam spill in the region of the kicker magnet.