Neumann, A.; Anders, W.; Goebel, F.; Heugel, A.; Klauke, S.; Knobloch, J.: High Power Coupler Conditioning for bERLinPro Energy Recovery Linac Injector. In: Lin Liu (LNLS) ... [Ed.] : Proceedings of the 12th International Particle Accelerator Conference, IPAC 2021 : Brazilian Center for Research in Energy and Materials (LNLS/CNPEM) in Campinas, Brazil, 24–28 May 2021 Geneve: JACoW, 2021. - ISBN 978-3-95450-214-1, p. MOPAB347/1080-1083
10.18429/JACoW-IPAC2021-MOPAB347
Open Access Version
Abstract:
Helmholtz Zentrum Berlin is currently finalizing the construction of the demonstrator Energy Recovery Linac (ERL) bERLinPro [1]. The first part, which will be commissioned, will be the injector consisting of a superconducting RF (SRF) photo-injector (Gun) and a Booster module made up of three two cell SRF cavities. For the latter the 2.3 MeV beam from the gun needs to be accelerated to 6.5 MeV, whereas one Booster cavity will be operated in zero-crossing mode for bunch-shortening. Thus, for the final stage with a 100 mA beam, the twin power couplers of the Booster cavity need to deliver up to 120 kW in travelling continous wave (CW) mode at 1.3 GHz each. To achieve that, a dedicated coupler conditioning setup was installed and commissioned. Here, we will present the first conditioning results with the bERLin- Pro Booster fundamental power couplers in pulsed and CW regime.