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{digiacomo:linac2022-mopopa15, author = {M. Di Giacomo and M. Aburas and P.-E. Bernaudin and F. Bouly and O. Delahaye and A. Dubosq and A. Ghribi and J.-M. Lagniel and J.F. Leyge and G. Normand and A.K. Orduz and F. Pillon and S. Sube and L. Valentin}, % author = {M. Di Giacomo and M. Aburas and P.-E. Bernaudin and F. Bouly and O. Delahaye and A. Dubosq and others}, % author = {M. Di Giacomo and others}, title = {{Three Years of Operation of the SPIRAL2 SC LINAC- RF Feedback}}, booktitle = {Proc. LINAC'22}, % booktitle = {Proc. 31st International Linear Accelerator Conference (LINAC'22)}, pages = {98--101}, eid = {MOPOPA15}, language = {english}, keywords = {cavity, linac, LLRF, controls, operation}, venue = {Liverpool, UK}, series = {International Linear Accelerator Conference}, number = {31}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {09}, year = {2022}, issn = {2226-0366}, isbn = {978-3-95450-215-8}, doi = {10.18429/JACoW-LINAC2022-MOPOPA15}, url = {https://jacow.org/linac2022/papers/mopopa15.pdf}, abstract = {{The superconducting LINAC of SPIRAL2 at the GANIL facility has been in operation since October 2019. The accelerator uses 12 low beta and 14 high beta supercon-ducting quarter wave cavities, cooled at 4°K, working at 88 MHz. The cavities are operated at a nominal gradient of 6.5 MV/m and are independently powered by a LLRF and a solid-state amplifier, protected by a circulator. Pro-ton and deuteron beam currents can reach 5 mA and beam loading perturbation is particularly strong on the first cavities, as they are operated at field levels much lower than the nominal one. This paper presents a feedback after three years of oper-ation, focuses on the RF issues, describing problems and required improvement on the low level, control and pow-er systems}}, }