@misc{10481/58076, year = {2018}, url = {http://hdl.handle.net/10481/58076}, abstract = {Cherenkov light induced by radioactive decay products is one of the major sources of background light for deep-sea neutrino telescopes such as ANTARES. These decays are at the same time a powerful calibration source. Using data collected by the ANTARES neutrino telescope from mid 2008 to 2017, the time evolution of the photon detection efficiency of optical modules is studied. A modest loss of only 20% in 9 years is observed. The relative time calibration between adjacent modules is derived as well.}, publisher = {Springer Nature}, title = {Long-term monitoring of the ANTARES optical module efficiencies using 40K decays in sea water}, doi = {10.1140/epjc/s10052-018-6132-2}, author = {Díaz García, Antonio Francisco and Albert, A. and Navas Concha, Sergio and Antares Collaboration}, }