• Kugeler, O.; Neumann, A.; Anders, W.; Knobloch, J.: Adapting TESLA technology for future cw light sources using HoBiCaT. Review of Scientific Instruments 81 (2010), p. 074701/1-9

10.1063/1.3443561

Abstract:
The HoBiCaT facility has been has been set-up and operated at the Helmholtz-Zentrum-Berlin and BESSY since 2005. Its purpose is testing superconducting cavities in CW mode of operation and it was successfully demonstrated, that TESLA pulsed technology can be used for CW mode of operation with only minor changes. Issues that were addressed comprise elevated dynamic thermal losses in the cavity walls, necessary modifications in the cryogenics and the cavity processing, the optimum choice of operational parameters like cavity temperature or bandwidth, the characterization of higher order modes in the cavity, and the usability of existing tuners and couplers for CW. PACS numbers: 85.25.Am