PAL-XFEL (Pohang Accelerator Laboratory X-ray Free Electron Laser) started RF conditioning in October 2015 and has been operating reliably for ~ 4 years. The machine's LLRF and SSA systems contributed to the stable operation of PAL-XFEL with over 99% availability. The LLRF and SSA systems showed some problems in rare cases. The delay caused by the problem is very small, but PAL-XFEL can stop working. Some issues have been identified and resolved. We want to share the experience.
@article{arxiv.1909.12091,
title = {Operation of PAL-XFEL LLRF},
author = {Jinyul Hu and Juho Hong and KwangHoon Kim and Seonghoon Jung and Donghyun Na and Yong Jung Park and Sang-Hee Kim and Soung-soo Park and Chang-Ki Min and Heung-Sik Kang and Heung-Soo Lee},
journal= {arXiv preprint arXiv:1909.12091},
year = {2019}
}
Comments
Poster presented at LLRF Workshop 2019 (LLRF2019, arXiv:1909.06754)