| Naslov: | Automated procedures for the Fluorescence Detector calibration at the Pierre Auger Observatory |
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| Avtorji: | ID Salina, Gaetano (Avtor)
ID Filipčič, Andrej (Avtor)
ID Kukec Mezek, Gašper (Avtor)
ID Saleh, Ahmed (Avtor)
ID Stanič, Samo (Avtor)
ID Trini, Marta (Avtor)
ID Veberič, Darko (Avtor)
ID Vorobiov, Serguei (Avtor)
ID Yang, Lili (Avtor)
ID Zavrtanik, Danilo (Avtor)
ID Zavrtanik, Marko (Avtor), et al. |
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| Datoteke: |  ICRC2015_594.pdf (1,06 MB)
MD5: 014E633D68809A01ED02A19C64788F8F
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| Jezik: | Slovenski jezik |
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| Vrsta gradiva: | Delo ni kategorizirano |
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| Tipologija: | 1.08 - Objavljeni znanstveni prispevek na konferenci |
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| Organizacija: | UNG - Univerza v Novi Gorici
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| Opis: | The quality of the physics results, derived from the analysis
of the data collected at the Pierre Auger Observatory depends
heavily on the calibration and monitoring of the components of
the detectors. It is crucial to maintain a database containing complete information on the absolute calibration of all
photomultipliers and their time evolution. The low rate of the
physics events implies that the analysis will have to be made
over a long period of operation. This requirement imposes a
very organized and reliable data storage and data management
strategy, in order to guarantee correct data preservation and
high data quality. The Fluorescence Detector (FD) consists of
27 telescopes with about 12,000 phototubes which have to be
calibrated periodically. A special absolute calibration system
is used. It is based on a calibrated light source with a
diffusive screen, uniformly illuminating photomultipliers
of the camera. This absolute calibration is performed every few
years, as its use is not compatible with the operation of the
detector. To monitor the stability and the time behavior,
another light source system operates every night of data
taking. This relative calibration procedure yields more than
2×10[sup]4 raw files each year, about 1 TByte/year. In this
paper we describe a new web-interfaced database architecture
to manage, store, produce and analyse FD calibration data.
It contains the configuration and operating parameters of the
detectors at each instant and other relevant functional
parameters that are needed for the analysis or to monitor
possible instabilities, used for the early discovery of
malfunctioning components. Based on over 10 years of
operation, we present results on the long term performance
of FD and its dependence on environmental variables. We also
report on a check of the absolute calibration values by
analysing the signals left by stars traversing the FD field of
view. |
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| Ključne besede: | Pierre Auger Observatory, Fluorescence Detector, detector calibration and monitoring, automated calibration procedure |
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| Status publikacije: | Objavljeno |
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| Leto izida: | 2015 |
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| PID: | 20.500.12556/RUNG-2152  |
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| COBISS.SI-ID: | 4155387 |
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| NUK URN: | URN:SI:UNG:REP:ATLUNYSF |
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| Datum objave v RUNG: | 03.03.2016 |
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| Število ogledov: | 5172 |
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| Število prenosov: | 213 |
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| Metapodatki: |    |
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