2021
DOI: 10.1088/1748-0221/16/01/p01031
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Measurement of the radiation environment of the ATLAS cavern in 2017–2018 with ATLAS-GaAsPix detectors

Abstract: A network of ten GaAs:Cr semiconductor Timepix detectors with GaAs:Cr sensors was installed in the ATLAS cavern at CERN's LHC during the shutdown periods 2015–2016 and 2016–2017 in the framework of a cooperation between ATLAS and the Medipix2 Collaboration. The purpose was to augment the existing system of measuring and characterising the radiation environment in the ATLAS cavern that is based on ATLAS-TPX devices with pixelated silicon sensors. The detectors were in continuous operation during 13 TeV proton-p… Show more

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“…The chromium compensation technology allows the fabrication of HR GaAs:Cr with a 25-80 ns electron lifetime [6]. Despite the fact that HR GaAs:Cr was successfully used to create ionizing radiation detectors demanded at nuclear physics research centers [15], the mechanisms responsible for the increase in charge carrier lifetime with the introduction of chromium need further investigation. To the best of our knowledge, OPTP spectroscopy has not previously been used to study GaAs:Cr.…”
Section: Introductionmentioning
confidence: 99%
“…The chromium compensation technology allows the fabrication of HR GaAs:Cr with a 25-80 ns electron lifetime [6]. Despite the fact that HR GaAs:Cr was successfully used to create ionizing radiation detectors demanded at nuclear physics research centers [15], the mechanisms responsible for the increase in charge carrier lifetime with the introduction of chromium need further investigation. To the best of our knowledge, OPTP spectroscopy has not previously been used to study GaAs:Cr.…”
Section: Introductionmentioning
confidence: 99%