JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{barbagallo:srf2023-wepwb103, author = {C. Barbagallo and B.S. Barriere and C.S. Clement and P. Duchesne and R.L.A. Gerard and F. Gerigk and J. Henry and W. Kaabi and P.M. Maurin and G. Olivier and G. Olry and S.A. Overstreet and G.-T. Park and R.A. Rimmer and S. Roset and H. Wang and Z.F. Zomer}, % author = {C. Barbagallo and B.S. Barriere and C.S. Clement and P. Duchesne and R.L.A. Gerard and F. Gerigk and others}, % author = {C. Barbagallo and others}, title = {{Simulations and First RF Measurements of Coaxial HOM Coupler Prototypes for PERLE SRF Cavities}}, % booktitle = {Proc. SRF'23}, booktitle = {Proc. 21th Int. Conf. RF Supercond. (SRF'23)}, pages = {831--834}, eid = {WEPWB103}, language = {english}, keywords = {HOM, cavity, damping, coupling, simulation}, venue = {Grand Rapids, MI, USA}, series = {International Conference on RF Superconductivity}, number = {21}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {09}, year = {2023}, issn = {2673-5504}, isbn = {978-3-95450-234-9}, doi = {10.18429/JACoW-SRF2023-WEPWB103}, url = {https://jacow.org/srf2023/papers/wepwb103.pdf}, abstract = {{Superconducting Radio-Frequency (SRF) linac cryomodules are foreseen for the high-current multi-turn energy recovery linac PERLE (Powerful Energy Recovery Linac for Experiments). Coaxial higher order mode (HOM) couplers are the primary design choice to absorb beam-induced power and avoid beam instabilities. We have used 3D-printed and copper-coated HOM couplers for the prototyping and bench RF measurements on the copper PERLE cavities. We have started a collaboration with JLab and CERN on this effort. This paper presents electromagnetic simulations of the cavity HOM-damping performance on those couplers. Bench RF measurements of the HOMs on an 801.58 MHz 2-cell copper cavity performed at JLab are detailed. The results are compared to eigenmode simulations in CST to confirm the design. RF-thermal simulations are conducted to investigate if the studied HOM couplers undergo quenching.}}, }