An experimental set-up to measure the long-term stability of large-mirror supports

20-2000 Precision of the Cherenkov ring pattern recognition and reconstruction relies, apart from other factors, on highly precise and stable positioning of the spherical mirrors, which focus the Cherenkov light cones produced by the particle to form ring-images on the focal plane. Prototypes of adj...

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Detalles Bibliográficos
Autores principales: D'Ambrosio, C, Laub, M, Wertelaers, Piet
Lenguaje:eng
Publicado: 2000
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/684664
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author D'Ambrosio, C
Laub, M
Wertelaers, Piet
author_facet D'Ambrosio, C
Laub, M
Wertelaers, Piet
author_sort D'Ambrosio, C
collection CERN
description 20-2000 Precision of the Cherenkov ring pattern recognition and reconstruction relies, apart from other factors, on highly precise and stable positioning of the spherical mirrors, which focus the Cherenkov light cones produced by the particle to form ring-images on the focal plane. Prototypes of adjustable mirror mountings that hold the mirrors on the support structure have to be tested for their long-term angular stability, in order to ensure that the mirrors will not change their precisely adjusted positions inside the detector vessel. A method, together with a set-up, for such a measurement is presented. As an example, measurement results from a mirror support prototype developed for the RICH2 detector in LHCb are described and discussed.
id cern-684664
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
record_format invenio
spelling cern-6846642019-09-30T06:29:59Zhttp://cds.cern.ch/record/684664engD'Ambrosio, CLaub, MWertelaers, PietAn experimental set-up to measure the long-term stability of large-mirror supportsDetectors and Experimental Techniques20-2000 Precision of the Cherenkov ring pattern recognition and reconstruction relies, apart from other factors, on highly precise and stable positioning of the spherical mirrors, which focus the Cherenkov light cones produced by the particle to form ring-images on the focal plane. Prototypes of adjustable mirror mountings that hold the mirrors on the support structure have to be tested for their long-term angular stability, in order to ensure that the mirrors will not change their precisely adjusted positions inside the detector vessel. A method, together with a set-up, for such a measurement is presented. As an example, measurement results from a mirror support prototype developed for the RICH2 detector in LHCb are described and discussed.LHCb-2000-020oai:cds.cern.ch:6846642000-04-18
spellingShingle Detectors and Experimental Techniques
D'Ambrosio, C
Laub, M
Wertelaers, Piet
An experimental set-up to measure the long-term stability of large-mirror supports
title An experimental set-up to measure the long-term stability of large-mirror supports
title_full An experimental set-up to measure the long-term stability of large-mirror supports
title_fullStr An experimental set-up to measure the long-term stability of large-mirror supports
title_full_unstemmed An experimental set-up to measure the long-term stability of large-mirror supports
title_short An experimental set-up to measure the long-term stability of large-mirror supports
title_sort experimental set-up to measure the long-term stability of large-mirror supports
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/684664
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