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@inproceedings{banerjee:ipac2021-thpab322, author = {N. Banerjee and G.H. Hoffstaetter}, title = {{Transient Beam Loading in the CBETA Multi-Turn ERL}}, booktitle = {Proc. IPAC'21}, pages = {4422--4425}, eid = {THPAB322}, language = {english}, keywords = {cavity, linac, beam-loading, operation, SRF}, venue = {Campinas, SP, Brazil}, series = {International Particle Accelerator Conference}, number = {12}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {08}, year = {2021}, issn = {2673-5490}, isbn = {978-3-95450-214-1}, doi = {10.18429/JACoW-IPAC2021-THPAB322}, url = {https://jacow.org/ipac2021/papers/thpab322.pdf}, note = {https://doi.org/10.18429/JACoW-IPAC2021-THPAB322}, abstract = {{The Cornell-BNL ERL Test Accelerator (CBETA) is the first superconducting multi-turn ERL that has been commissioned at Cornell University in a low current mode. In this paper, we first discuss a new model of beam loading which is valid for the low injection energies used in CBETA. Using this model, we explore the effect of bunch patterns, beam turn-on, and turn-off transients on the fundamental mode of the 7-cell SRF cavities used in the main linac. In particular, we examine the operational constraints on the rf system at the design current of 40 mA.}}, }