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Upgrade of the monitoring system of LHCb ECAL
The LHCb ECAL is a shashlik calorimeter of 6016 cells, covering 7.686.24 m2 area. To monitor the readout chain of each ECAL cell, the LHCb ECAL is equipped with a LED based monitoring system. During the LHC Run I (2009-2012) it was found that the precision of the monitoring suffers from the radiatio...
| Autores principales: | , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2016
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/2196516 |
| _version_ | 1780951089698308096 |
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| author | Guz, Iouri Belyaev, Vanya Chernov, Evgeny Egorychev, Victor Kandybei, Sergii Kvaratskheliya, Tengiz Obraztsov, Vladimir Perret, Pascal Philippov, Sergey Savrina, Daria Shatalov, Sppavel Zakoriuchkina, Tatiana Zhokhov, Anatoli Zvyagintsev, Serguei |
| author_facet | Guz, Iouri Belyaev, Vanya Chernov, Evgeny Egorychev, Victor Kandybei, Sergii Kvaratskheliya, Tengiz Obraztsov, Vladimir Perret, Pascal Philippov, Sergey Savrina, Daria Shatalov, Sppavel Zakoriuchkina, Tatiana Zhokhov, Anatoli Zvyagintsev, Serguei |
| author_sort | Guz, Iouri |
| collection | CERN |
| description | The LHCb ECAL is a shashlik calorimeter of 6016 cells, covering 7.686.24 m2 area. To monitor the readout chain of each ECAL cell, the LHCb ECAL is equipped with a LED based monitoring system. During the LHC Run I (2009-2012) it was found that the precision of the monitoring suffers from the radiation degradation of transparency of polystyrene clear fibers used to transport the LED light to the ECAL photomultipliers. In order to improve the performance of the monitoring system, and especially in view of significant increase of LHCb working luminosity foreseen after 2018, the present plastic fibers have been replaced by radiation hard quartz fibers. The design of the upgraded version of the LHCb ECAL monitoring system is described here. The usage and performance of the new system for the ECAL calibration during the LHCb Run II are discussed. |
| id | cern-2196516 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2016 |
| record_format | invenio |
| spelling | cern-21965162019-09-30T06:29:59Zhttp://cds.cern.ch/record/2196516engGuz, IouriBelyaev, VanyaChernov, EvgenyEgorychev, VictorKandybei, SergiiKvaratskheliya, TengizObraztsov, VladimirPerret, PascalPhilippov, SergeySavrina, DariaShatalov, SppavelZakoriuchkina, TatianaZhokhov, AnatoliZvyagintsev, SergueiUpgrade of the monitoring system of LHCb ECALParticle Physics - ExperimentThe LHCb ECAL is a shashlik calorimeter of 6016 cells, covering 7.686.24 m2 area. To monitor the readout chain of each ECAL cell, the LHCb ECAL is equipped with a LED based monitoring system. During the LHC Run I (2009-2012) it was found that the precision of the monitoring suffers from the radiation degradation of transparency of polystyrene clear fibers used to transport the LED light to the ECAL photomultipliers. In order to improve the performance of the monitoring system, and especially in view of significant increase of LHCb working luminosity foreseen after 2018, the present plastic fibers have been replaced by radiation hard quartz fibers. The design of the upgraded version of the LHCb ECAL monitoring system is described here. The usage and performance of the new system for the ECAL calibration during the LHCb Run II are discussed.LHCb-PUB-2016-018CERN-LHCb-PUB-2016-018oai:cds.cern.ch:21965162016-07-05 |
| spellingShingle | Particle Physics - Experiment Guz, Iouri Belyaev, Vanya Chernov, Evgeny Egorychev, Victor Kandybei, Sergii Kvaratskheliya, Tengiz Obraztsov, Vladimir Perret, Pascal Philippov, Sergey Savrina, Daria Shatalov, Sppavel Zakoriuchkina, Tatiana Zhokhov, Anatoli Zvyagintsev, Serguei Upgrade of the monitoring system of LHCb ECAL |
| title | Upgrade of the monitoring system of LHCb ECAL |
| title_full | Upgrade of the monitoring system of LHCb ECAL |
| title_fullStr | Upgrade of the monitoring system of LHCb ECAL |
| title_full_unstemmed | Upgrade of the monitoring system of LHCb ECAL |
| title_short | Upgrade of the monitoring system of LHCb ECAL |
| title_sort | upgrade of the monitoring system of lhcb ecal |
| topic | Particle Physics - Experiment |
| url | http://cds.cern.ch/record/2196516 |
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