| Issue |
EPJ Web Conf.
Volume 182, 2018
6th International Conference on New Frontiers in Physics (ICNFP 2017)
|
|
|---|---|---|
| Article Number | 02112 | |
| Number of page(s) | 6 | |
| Section | Talks | |
| DOI | https://doi.org/10.1051/epjconf/201818202112 | |
| Published online | 03 August 2018 | |
https://doi.org/10.1051/epjconf/201818202112
The LUCID-2 detector
INFN Bologna
a e-mail: Antonio.Sbrizzi@cern.ch
Published online: 3 August 2018
The LUCID-2 detector is the main online and ofline luminosity monitor of the ATLAS experiment. It is a compact Cherenkov detector made of photomultipliers with a 10 mm diameter quartz window acting as the Cherenkov medium. In order to provide a reliable luminosity measurement during years of data-taking, the LUCID-2 detector can use 104 different luminosity algorithms for each of the LHC colliding bunches. The detector stability is kept at a percent level thanks to an innovative monitoring system based on radioactive Bi-207 sources deposited on the photomultipliers quartz window. Combining the LUCID-2 measurement with those of other four ATLAS subdetectors, the luminosity has been estimated with a total uncertainty of 2.1% in 2015 and 2.2% in 2016.
© The Authors, published by EDP Sciences 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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