<?xml version="1.0" encoding="UTF-8"?> <collection> <dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:invenio="http://invenio-software.org/elements/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><dc:identifier>doi:10.18429/JACoW-SRF2019-THP031</dc:identifier><dc:language>eng</dc:language><dc:creator>Turaj, Katarzyna</dc:creator><dc:creator>Arnaudon, Luca</dc:creator><dc:creator>Baudrenghien, Philippe</dc:creator><dc:creator>Brunner, Olivier</dc:creator><dc:creator>Butterworth, Andrew</dc:creator><dc:creator>Gerigk, Frank</dc:creator><dc:creator>Karppinen, Mikko</dc:creator><dc:creator>Maesen, Pierre</dc:creator><dc:creator>Montesinos, Eric</dc:creator><dc:creator>Peauger, Franck</dc:creator><dc:creator>Rosaz, Guillaume</dc:creator><dc:creator>Shaposhnikova, Elena</dc:creator><dc:creator>Smekens, David</dc:creator><dc:creator>Taborelli, Mauro</dc:creator><dc:creator>Therasse, Mathieu</dc:creator><dc:creator>Timko, Helga</dc:creator><dc:creator>Valuch, Daniel</dc:creator><dc:creator>Valverde Alonso, Nuria</dc:creator><dc:creator>Venturini Delsolaro, Walter</dc:creator><dc:title>Operation Experience with the LHC ACS RF System</dc:title><dc:subject>Accelerators and Storage Rings</dc:subject><dc:identifier>SRF2019</dc:identifier><dc:description>The LHC accelerating RF system consists of two cryomodules per beam, each containing four single-cell niobium sputtered 400.8 MHz superconducting cavities working at 4.5 K and an average accelerating voltage of 2 MV. The paper summarises the experience, availability and evolution of the system within 10 years of operation. The lessons learned from the successful replacement and re-commissioning of one cryomodule with a spare module, and the recent re-test of the originally installed module on the test stand are also included. Finally, a review of currently launched spare cavity production and long-term developments are presented.</dc:description><dc:publisher/><dc:date>2019</dc:date><dc:source>http://cds.cern.ch/record/2712616</dc:source><dc:doi>10.18429/JACoW-SRF2019-THP031</dc:doi><dc:identifier>http://cds.cern.ch/record/2712616</dc:identifier><dc:identifier>oai:inspirehep.net:1780592</dc:identifier></dc:dc> </collection>