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@inproceedings{fedotov:ipac2021-wexa02, author = {A.V. Fedotov and K.A. Drees and W. Fischer and X. Gu and D. Kayran and J. Kewisch and C. Liu and K. Mernick and M.G. Minty and V. Schoefer and H. Zhao}, % author = {A.V. Fedotov and K.A. Drees and W. Fischer and X. Gu and D. Kayran and J. Kewisch and others}, % author = {A.V. Fedotov and others}, title = {{Operational Electron Cooling in the Relativistic Heavy Ion Collider}}, booktitle = {Proc. IPAC'21}, pages = {2516--2520}, eid = {WEXA02}, language = {english}, keywords = {electron, operation, collider, cathode, cavity}, 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-WEXA02}, url = {https://jacow.org/ipac2021/papers/wexa02.pdf}, note = {https://doi.org/10.18429/JACoW-IPAC2021-WEXA02}, abstract = {{Since the invention of the electron cooling technique its application to cool hadron beams in colliders was considered for numerous accelerator physics projects worldwide. However, achieving the required high-brightness electron beams of required quality and cooling of ion beams in collisions was deemed to be challenging. An electron cooling of ion beams employing a high-energy approach with RF-accelerated electron bunches was recently successfully implemented at BNL. It was used to cool ion beams in both collider rings with ion beams in collision. Electron cooling in RHIC became fully operational during the 2020 physics run and led to substantial improvements in luminosity. This presentation will discuss implementation, optimization and challenges of electron cooling for colliding ion beams in RHIC.}}, }