Vélez, A.; Glock, H.-W.; Knobloch, J.; Neumann, A.: Hom Damping Optimization Design Studies for BESSY VSR Cavities. In: Stuart Henderson ... [Ed.] : Proceedings of the 6th International Particle Accelerator Conference - Proceedings of IPAC 2015, Richmond, VA, USA. JACoW, 2015. - ISBN 978-3-95450-168-7, p. WEPMA013/1-3
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The BESSY VSR project is a future upgrade of the 3rd generation BESSY II light source. By using the same "standard" user optics, simultaneously long (ca. 15ps) and short (ca. 1.5ps) bunches will be stored. Thus, SRF higher harmonic cavities of the fundamental 500 MHz at two frequencies need to be installed in the BESSY II storage ring. This work describes the optimization studies for the waveguide-based HOM dampers and the adjustable fundamental power coupler for the 1.5 GHz first SRF cavity prototype.