Preliminary Test of the Bunch-by-Bunch Transverse Feedback System for TPS Storage Ring

Commissioning of the Taiwan Photon Source (TPS) is in progress and divided into two phases. The storage ring equips with two five-cell PETRA RF cavities and without insertion devices installed for Phase-I commission to confirm correctness of everything, to do preliminary vacuum clearing, and wait available of cryogenic system available. After finished the Phase-I commissioning in March, 2015, installation of two superconducting RF cavities and 10 sets of insertion devices are ongoing. The commissioning is planned to start around in August. There is a prototype vertical stripline kicker installed in 2014. One horizontal stripline kicker and two vertical stripline kickers were installed in May. Commercial available feedback processor was selected for the feedback system integration. Preliminary feedback loop closed have been tested during Phase-I beam commissioning in early 2015 with prototype vertical kicker. Beam commissioning with new kickers is scheduled when beam stored in Phase-II beam commissioning which will started soon. Final check before beam test is under way.