CERN Bulletin, 27 July 2018
LHC accelerates its first "atoms" : https://home.cern/news/news/accelerators/lhc-accelerates-its-first-atoms

Symmetry Magazine, 17 July 2018
LHC accelerates its first "atoms" : https://www.symmetrymagazine.org/article/lhc-accelerates-its-first-atoms

CERN Courier, 13 October 2017
"Xenon beams light path to gamma factory" : https://cerncourier.com/a/xenon-beams-light-path-to-gamma-factory/