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{mock:ibic2023-tu3i01, author = {J.A. Mock and A.S. Fisher and R.T. Herbst and P. Krejcik and L. Sapozhnikov}, title = {{Commissioning of the LCLS-II Machine Protection System for MHz CW Beams}}, % booktitle = {Proc. IBIC'23}, booktitle = {Proc. 12th Int. Beam Instrum. Conf. (IBIC'23)}, eventdate = {2023-09-10/2023-09-14}, pages = {154--159}, paper = {TU3I01}, language = {english}, keywords = {timing, undulator, electron, linac, kicker}, venue = {Saskatoon, Canada}, series = {International Beam Instrumentation Conference}, number = {12}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {12}, year = {2023}, issn = {2673-5350}, isbn = {978-3-95450-236-3}, doi = {10.18429/JACoW-IBIC2023-TU3I01}, url = {https://jacow.org/ibic2023/papers/tu3i01.pdf}, abstract = {{Beam power at the LCLS-II linac and FEL can be as high as several hundered kW with CW beam rates up to 1 MHz. The new MPS has a latency of less than 100 µs to prevent damage when a fault or beam loss is detected. The MPS architecture encompasses the multiple FEL beamlines served by the SC linac and can mitigate a fault in one beamline without impacting the beam rate in a neighboring beamline. The MPS receives inputs from various devices including loss monitors and charge monitors as well as magnet power supplies and BPMs to pre-emptively turn of the beam if a fault condition is detected. Link nodes distributed around the facility gather the input data and stream it back to a central processor that signals other link nodes connected to beam rate control devices. Commmissioning and experience with the new system will be described.}}, }