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{cravatta:srf2023-mopmb063, author = {A.T. Cravatta and S. Aderhold and T.T. Arkan and D. Bafia and M. Checchin and M.A. Drury and D. Gonnella and J. Hogan and J.A. Kaluzny and J.T. Maniscalco and J. Nelson and R.D. Porter and S. Posen and H. Vennekate and L.M. Zacarias}, % author = {A.T. Cravatta and S. Aderhold and T.T. Arkan and D. Bafia and M. Checchin and M.A. Drury and others}, % author = {A.T. Cravatta and others}, title = {{Multipacting Processing in Cryomodules for LCLS-II and LCLS-II-HE}}, % booktitle = {Proc. SRF'23}, booktitle = {Proc. 21th Int. Conf. RF Supercond. (SRF'23)}, pages = {259--262}, eid = {MOPMB063}, language = {english}, keywords = {cavity, cryomodule, linac, radiation, multipactoring}, 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-MOPMB063}, url = {https://jacow.org/srf2023/papers/mopmb063.pdf}, abstract = {{Multipacting (MP) is a phenomenon which can affect stability in particle accelerators and limit performance in superconducting radio frequency cavities. In the TESLA shaped, 1.3 GHz, 9-cell cavities used in the LCLS-II (L2) and LCLS-II-HE (HE) projects, the MP-band (~17-24 MV/m) lies within the required accelerating gradients. For HE, the operating gradient of 20.8 MV/m lies well within the MP-band and cryomodule testing has confirmed that this is an issue. As such, MP processing for the HE cryomodule test program will be discussed. Early results on MP processing in cryomodules installed in the L2 linac will also be presented, demonstrating that the methods used in cryomodule acceptance testing are also successful at conditioning MP in the accelerator and that this processing is preserved in the mid-term.}}, }