Using muon rings for the optical calibration of the ASTRI telescopes for the Cherenkov Telescope Array

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00553730" target="_blank" >RIV/68378271:_____/16:00553730 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1117/12.2232256" target="_blank" >https://doi.org/10.1117/12.2232256</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2232256" target="_blank" >10.1117/12.2232256</a>

Result language
angličtina
Original language name
Using muon rings for the optical calibration of the ASTRI telescopes for the Cherenkov Telescope Array
Original language description
High-energy muons constitute a very useful tool to calibrate the total optical throughput of any telescope of the Cherenkov Telescope Array (CTA). Differences in precision and efficiency can however be present due to the variety of telescope types and sizes. In this contribution we present some preliminary results on simulated muon ring images collected by the ASTRI small sized dual-mirror (SST-2M) telescope in the basic configuration installed in Italy at the Serra La Nave observing station. ASTRI SST-2M is able, using 6% of the detected muon events, to calibrate with muons the optical throughput down to a degradation of the optical efficiency of 30%. Moreover, its precision in reconstructing the muon arrival direction is about one camera pixel, and its error on the reconstructed ring radius is similar to 6.3%. The adopted procedures will be tested and validated with real data acquired by the prototype after the commissioning phase.
Czech name
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Czech description
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Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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