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Investigation of Ageing effects and Image stability in Hybrid Photon Pixel detectors at the LHCb experiment CERN
Linköping University, Department of Physics, Chemistry and Biology.
2010 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Undersökning av åldringseffekter och bildstabilitet i hybrida foton-pixel-detektorer vid LHCb experimentet CERN (Swedish)
Abstract [en]

The world’s largest particle accelerator, Large Hadron Collider, located at CERN outside Geneva performed its first proton-proton collisions in November 2009. One of the four main experiments is LHCb, studying rare decays of hadrons containing the beauty quark. An essential part of the particle identification in LHCb is made by the two Ring Imaging Cherenkov detectors. These detectors use pixel Hybrid Photon Detectors for detection and imaging of Cherenkov rings. This paper reports on measurements carried out on the Hybrid Photon Detectors, including a discussion of the results. In particular, ageing effect and image stability are studied. A fraction of the photon detectors show a degradation in performance within these fields.

Abstract [sv]

Världens största partikelaccelerator, LHC, belägen vid CERN utanför Genève utförde sina första proton-proton kollisioner i November 2009. Ett av de fyra huvudexperimenten är LHCb, som studerar sällsynta sönderfall av hadroner innehållande b kvarken. En viktig del av partikelidentifikationen i LHCb görs av de två RICH detektorerna. Dessa använder hybrida fotondetektorer för detektering och avbildning av Cherenkov ringar. Denna rapport handlar om mätningar utförda på dessa hybrida fotondetektorer, med en diskussion av resultaten. I synnerhet studeras åldringseffekter och bildstabilitet. En andel av fotondetektorerna visar en degradering i prestanda inom dessa områden.

Place, publisher, year, edition, pages
2010. , 115 p.
Keyword [en]
Ring Imaging Cherenkov detectors, Hybrid Photon Detectors, Ion Feedback, Glow light
National Category
Other Physics Topics
Identifiers
URN: urn:nbn:se:liu:diva-54734ISRN: LITH-IFM-A-EX--10/2227--SEOAI: oai:DiVA.org:liu-54734DiVA: diva2:319415
Presentation
2010-02-24, Mott, Fysikhuset, IFM, Linköpings universitet, 581 83 Linköping, Linköping, 15:15 (English)
Uppsok
Physics, Chemistry, Mathematics
Supervisors
Examiners
Available from: 2010-05-18 Created: 2010-04-08 Last updated: 2010-05-18Bibliographically approved

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Investigation of Ageing effects and Image stability in Hybrid Photon Pixel detectors at the LHCb experiment CERN(10160 kB)298 downloads
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CiteExportLink to record
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