Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons

The ionization signals in the liquid argon of the ATLAS electromagnetic calorimeter are studied in detail using cosmic muons. In particular, the drift time of the ionization electrons is measured and used to assess the intrinsic uniformity of the calorimeter gaps and estimate its impact on the const...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín Fernando, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2010
Materias:
Ciencias Exactas
liquid argon
Electromagnetic Calorimeter
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/82535
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-82535
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
liquid argon
Electromagnetic Calorimeter
spellingShingle Ciencias Exactas
liquid argon
Electromagnetic Calorimeter
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons
topic_facet Ciencias Exactas
liquid argon
Electromagnetic Calorimeter
description The ionization signals in the liquid argon of the ATLAS electromagnetic calorimeter are studied in detail using cosmic muons. In particular, the drift time of the ionization electrons is measured and used to assess the intrinsic uniformity of the calorimeter gaps and estimate its impact on the constant term of the energy resolution. The drift times of electrons in the cells of the second layer of the calorimeter are uniform at the level of 1.3% in the barrel and 2.8% in the endcaps. This leads to an estimated contribution to the constant term of (0.29<SUB>-0.04</SUB><SUP>+0.05</SUP>)% in the barrel and (0.54<SUB>-0.04</SUB><SUP>+0.06</SUP>)% in the endcaps. The same data are used to measure the drift velocity of ionization electrons in liquid argon, which is found to be 4.61±0.07 mm/μs at 88.5 K and 1 kV/mm.
format Articulo
Articulo
author Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_facet Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_sort Anduaga, Xabier Sebastián
title Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons
title_short Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons
title_full Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons
title_fullStr Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons
title_full_unstemmed Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons
title_sort drift time measurement in the atlas liquid argon electromagnetic calorimeter using cosmic muons
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/82535
work_keys_str_mv AT anduagaxabiersebastian drifttimemeasurementintheatlasliquidargonelectromagneticcalorimeterusingcosmicmuons
AT dovamariateresa drifttimemeasurementintheatlasliquidargonelectromagneticcalorimeterusingcosmicmuons
AT monticellifernandogabriel drifttimemeasurementintheatlasliquidargonelectromagneticcalorimeterusingcosmicmuons
AT tripianamartinfernando drifttimemeasurementintheatlasliquidargonelectromagneticcalorimeterusingcosmicmuons
AT theatlascollaboration drifttimemeasurementintheatlasliquidargonelectromagneticcalorimeterusingcosmicmuons
bdutipo_str Repositorios
_version_ 1764820488377335813

Ejemplares similares