Long-term monitoring of the ANTARES optical module efficiencies using 40K decays in sea water
Autor: | Díaz García, Antonio Francisco, Albert, A., Navas Concha, Sergio, Antares Collaboration |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2018 |
Předmět: | |
Zdroj: | Digibug. Repositorio Institucional de la Universidad de Granada instname |
Popis: | 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. |
Databáze: | OpenAIRE |
Externí odkaz: |