1,347 research outputs found
Ricerca di chargini a LEP 2 con l'esperimento ALEPH
No full textDottorato di ricerca in fisica. 10. ciclo. Coordinatore Francesco Romano, tutore Salvatore NuzzoConsiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7 Rome; Biblioteca Nazionale Centrale - P.za Cavalleggeri, 1, Florence / CNR - Consiglio Nazionale delle RichercheSIGLEITItal
Modified POF Sensor for Gaseous Hydrogen Fluoride Monitoring in the Presence of Ionizing Radiations
No full textThis paper describes the development of a sensor designed to detect low concentrations of hydrogen fluoride (HF) in gas mixtures. The sensor employs a plastic optical fiber (POF) covered with a thin layer of glass- like material. HF attacks the glass and alters the fiber transmission capability so that the detection simply requires a LED and a photodiode. The coated POF is obtained by means of low-pressure plasma-enhanced chemical vapor deposition that allows the glass-like film to be deposited at low temperature without damaging the fiber core. The developed sensor will be installed in the recirculation gas system of the resistive plate chamber muon detector of the Compact Muon Solenoid experiment at the Large Hadron Collider accelerator of the European Organization for Nuclear Research (CERN
Field Experiments of Mineral Deposition by Cathodic Polarization as a Sustainable Management Strategy for the Reuse of Marine Steel Structures
No full textLocal and global performance of double-gap resistive plate chambers operated in avalanche mode
No full textTwo large double-gap resistive plate chambers, with 2 and 3 mm gap widths, were tested to study their response uniformity when operated in avalanche mode. The effects of mechanical tolerances and the presence of the spacers is thoroughly examined. Results on efficiency and time resolution are presented. We find that average performance and response uniformity over the whole chamber surface are fully adequate to the requirements of future collider experiments. (author
Performances of Resistive Plate chamber Operated in Avalanche Mode under 137Cs Irradiation
No full textA 2 mm gas RPC with bakelite plates has been operated in avalanche mode under 137Cs source irradiation. We report on measurements of the efficiency in cosmic rays detection and of the charge developed in the gap, performed for different gas mixtures. We show that C2H2F4 based mixtures exhibit a wide full efficiency plateau with low streamer probability, while the argon based mixtures allow to reduce the detector power consumptio
Author Correction: A portrait of the Higgs boson by the CMS experiment ten years after the discovery
No full textIn the version of this article initially published, CMS Collaboration author names, affiliations and acknowledgements were omitted and have now been included in the HTML and PDF versions of the articl
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