Study of the Quantum Efficiency of CsI Photocathodes Exposed to Oxygen and Water Vapour

The operation of CsI photocathodes in gaseous detectors requires special attention to the purity of the applied gas mixtures.We have studied the influence of oxygen and water vapour contaminations on the performance of CsI photocathodes for theALICE HMPID RICH prototype. Measurements were done throu...

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Detalles Bibliográficos
Autores principales: Di Mauro, A, Martinengo, P, Piuz, François, Schyns, E M, Van Beelen, J B, Williams, T D
Lenguaje:eng
Publicado: 2000
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/439174
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author Di Mauro, A
Martinengo, P
Piuz, François
Schyns, E M
Van Beelen, J B
Williams, T D
author_facet Di Mauro, A
Martinengo, P
Piuz, François
Schyns, E M
Van Beelen, J B
Williams, T D
author_sort Di Mauro, A
collection CERN
description The operation of CsI photocathodes in gaseous detectors requires special attention to the purity of the applied gas mixtures.We have studied the influence of oxygen and water vapour contaminations on the performance of CsI photocathodes for theALICE HMPID RICH prototype. Measurements were done through comparison of Cherenkov rings obtained from beamtests. Increased levels of oxygen and water vapour did not show any effect on the performance. The results of this studyfound a direct application in the way of storing CsI photocathodes over long periods nad in particular in the shipment of theHMPID prototype from CERN to the STAR experiment at BNL. (Abstract only available,full text to follow)
id cern-439174
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
record_format invenio
spelling cern-4391742019-09-30T06:29:59Zhttp://cds.cern.ch/record/439174engDi Mauro, AMartinengo, PPiuz, FrançoisSchyns, E MVan Beelen, J BWilliams, T DStudy of the Quantum Efficiency of CsI Photocathodes Exposed to Oxygen and Water VapourDetectors and Experimental TechniquesThe operation of CsI photocathodes in gaseous detectors requires special attention to the purity of the applied gas mixtures.We have studied the influence of oxygen and water vapour contaminations on the performance of CsI photocathodes for theALICE HMPID RICH prototype. Measurements were done through comparison of Cherenkov rings obtained from beamtests. Increased levels of oxygen and water vapour did not show any effect on the performance. The results of this studyfound a direct application in the way of storing CsI photocathodes over long periods nad in particular in the shipment of theHMPID prototype from CERN to the STAR experiment at BNL. (Abstract only available,full text to follow)CERN-ALI-2000-014CERN-ALICE-PUB-2000-014oai:cds.cern.ch:4391742000-05-19
spellingShingle Detectors and Experimental Techniques
Di Mauro, A
Martinengo, P
Piuz, François
Schyns, E M
Van Beelen, J B
Williams, T D
Study of the Quantum Efficiency of CsI Photocathodes Exposed to Oxygen and Water Vapour
title Study of the Quantum Efficiency of CsI Photocathodes Exposed to Oxygen and Water Vapour
title_full Study of the Quantum Efficiency of CsI Photocathodes Exposed to Oxygen and Water Vapour
title_fullStr Study of the Quantum Efficiency of CsI Photocathodes Exposed to Oxygen and Water Vapour
title_full_unstemmed Study of the Quantum Efficiency of CsI Photocathodes Exposed to Oxygen and Water Vapour
title_short Study of the Quantum Efficiency of CsI Photocathodes Exposed to Oxygen and Water Vapour
title_sort study of the quantum efficiency of csi photocathodes exposed to oxygen and water vapour
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/439174
work_keys_str_mv AT dimauroa studyofthequantumefficiencyofcsiphotocathodesexposedtooxygenandwatervapour
AT martinengop studyofthequantumefficiencyofcsiphotocathodesexposedtooxygenandwatervapour
AT piuzfrancois studyofthequantumefficiencyofcsiphotocathodesexposedtooxygenandwatervapour
AT schynsem studyofthequantumefficiencyofcsiphotocathodesexposedtooxygenandwatervapour
AT vanbeelenjb studyofthequantumefficiencyofcsiphotocathodesexposedtooxygenandwatervapour
AT williamstd studyofthequantumefficiencyofcsiphotocathodesexposedtooxygenandwatervapour

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