Spectral calibration of the fluorescence telescopes of the Pierre Auger Observatory

We present a novel method to measure precisely the relative spectral response of the fluorescence telescopes of the Pierre Auger Observatory. We used a portable light source based on a xenon flasher and a monochromator to measure the relative spectral efficiencies of eight telescopes in steps of 5 n...

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Autores principales: Dova, María Teresa, Hansen, Patricia María, Mariazzi, Analisa Gabriela, Sciutto, Sergio Juan, Vergara Quispe, Indira Dajhana, Wahlberg, Hernán Pablo, The Pierre Auger Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/79667
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id I19-R120-10915-79667
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Calibración
Extensive air shower
Pierre Auger observatory
Fluorescencia
spellingShingle Ciencias Exactas
Física
Calibración
Extensive air shower
Pierre Auger observatory
Fluorescencia
Dova, María Teresa
Hansen, Patricia María
Mariazzi, Analisa Gabriela
Sciutto, Sergio Juan
Vergara Quispe, Indira Dajhana
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
Spectral calibration of the fluorescence telescopes of the Pierre Auger Observatory
topic_facet Ciencias Exactas
Física
Calibración
Extensive air shower
Pierre Auger observatory
Fluorescencia
description We present a novel method to measure precisely the relative spectral response of the fluorescence telescopes of the Pierre Auger Observatory. We used a portable light source based on a xenon flasher and a monochromator to measure the relative spectral efficiencies of eight telescopes in steps of 5 nm from 280 nm to 440 nm. Each point in a scan had approximately 2 nm FWHM out of the monochromator. Different sets of telescopes in the observatory have different optical components, and the eight telescopes measured represent two each of the four combinations of components represented in the observatory. We made an end-to-end measurement of the response from different combinations of optical components, and the monochromator setup allowed for more precise and complete measurements than our previous multi-wavelength calibrations. We find an overall uncertainty in the calibration of the spectral response of most of the telescopes of 1.5% for all wavelengths; the six oldest telescopes have larger overall uncertainties of about 2.2%. We also report changes in physics measurables due to the change in calibration, which are generally small.
format Articulo
Articulo
author Dova, María Teresa
Hansen, Patricia María
Mariazzi, Analisa Gabriela
Sciutto, Sergio Juan
Vergara Quispe, Indira Dajhana
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
author_facet Dova, María Teresa
Hansen, Patricia María
Mariazzi, Analisa Gabriela
Sciutto, Sergio Juan
Vergara Quispe, Indira Dajhana
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
author_sort Dova, María Teresa
title Spectral calibration of the fluorescence telescopes of the Pierre Auger Observatory
title_short Spectral calibration of the fluorescence telescopes of the Pierre Auger Observatory
title_full Spectral calibration of the fluorescence telescopes of the Pierre Auger Observatory
title_fullStr Spectral calibration of the fluorescence telescopes of the Pierre Auger Observatory
title_full_unstemmed Spectral calibration of the fluorescence telescopes of the Pierre Auger Observatory
title_sort spectral calibration of the fluorescence telescopes of the pierre auger observatory
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/79667
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