ÚTEFČVUT Ústav technické a experimentální fyziky ČVUT v PrazeInstitute of Experimental and Applied Physics, CTU in Prague

Automatic data processing for Baikal-GVD neutrino observatory

NázevTitle
Automatic data processing for Baikal-GVD neutrino observatoryAutomatic data processing for Baikal-GVD neutrino observatory
Druh výsledkuResult type
Příspěvek ve sborníkuProceedings paper
AutořiAuthors
L. Fajt, I. Štekl, F. Šimkovic
Klíčová slovaKeywords
astrophysical neutrino, Baikal-GVD
KonferenceConference
37th International Cosmic Ray Conference (Berlin, Germany, 2021-07-15)
Časopis / citaceJournal / citation
In: 37th International Cosmic Ray Conference, Proceedings of Science, 2022, pp. 1-6 · ISSN 1824-8039
RokYear
2022
JazykLanguage
eng
ZáznamyRecords
ProjektProject
Inženýrské aplikace fyziky mikrosvětaEngineering applications of microworld physics
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

Baikal-GVD is a gigaton-scale neutrino observatory under construction in Lake Baikal. It currently produces about 100 GB of data every day. For their automatic processing, the Baikal Analysis and Reconstruction software (BARS) was developed. At the moment, it includes such stages as hit extraction from PMT waveforms, assembling events from raw data, assigning timestamps to events, determining the position of the optical modules using an acoustic positioning system, data quality monitoring, muon track and cascade reconstruction, as well as the alert signal generation. These stages are implemented as C++ programs which are executed sequentially one after another and can be represented as a directed acyclic graph. The most resource-consuming programs run in parallel to speed up processing. A separate Python package based on the luigi package is responsible for program execution control. Additional information such as the program execution status and run metadata are saved into a central database and then displayed on the dashboard. Results can be obtained several hours after the run completion.

Baikal-GVD is a gigaton-scale neutrino observatory under construction in Lake Baikal. It currently produces about 100 GB of data every day. For their automatic processing, the Baikal Analysis and Reconstruction software (BARS) was developed. At the moment, it includes such stages as hit extraction from PMT waveforms, assembling events from raw data, assigning timestamps to events, determining the position of the optical modules using an acoustic positioning system, data quality monitoring, muon track and cascade reconstruction, as well as the alert signal generation. These stages are implemented as C++ programs which are executed sequentially one after another and can be represented as a directed acyclic graph. The most resource-consuming programs run in parallel to speed up processing. A separate Python package based on the luigi package is responsible for program execution control. Additional information such as the program execution status and run metadata are saved into a central database and then displayed on the dashboard. Results can be obtained several hours after the run completion.

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