Tsakanian, A.; Glock, H.-W.; Vélez, A.; Knobloch, J.: Study on HOM Power Levels in the BESSY VSR Module. In: Gianluigi Arduini ... [Ed.] : IPAC2017 - Proceedings, Copenhagen, Denmark JaCoW, 2017. - ISBN 978-3-95450-182-3, p. MOPVA052/1-4
Open Access Version
Abstract:
The BESSY VSR project represents a novel approach of SRF cavity application in the storage rings. To provide a high overvoltage for bunch compression L-band SRF cavities are equipped with strong waveguide and beam tube HOM dampers necessary for stable operation. The expected HOM power and spectrum has been analyzed for the complete module. This study is performed for various BESSY VSR bunch filling patterns. In the module different cavity arrangements are analyzed to reach the optimal operation conditions with equally distributed power portions in warm HOM loads and tolerable beam coupling impedance.