Long-term monitoring of the ANTARES optical module efficiencies using⁴⁰K decays in sea water
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| Publication date | 08-2018 |
| Journal | European Physical Journal C |
| Article number | 669 |
| Volume | Issue number | 78 | 8 |
| Number of pages | 8 |
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| 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. |
| Document type | Article |
| Language | English |
| Published at | https://doi.org/10.1140/epjc/s10052-018-6132-2 |
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Albert2018_Article_Long-termMonitoringOfTheANTARE
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