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    Results from the first p+p runs of the alice high level trigger at lhc

    Kanaki, Kalliopi
    Journal of Physics: Conference Series, 2011, Vol.331(2), p.022011 (5pp) [Peer Reviewed Journal]
    IOPscience (IOP Publishing)
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    Title: Results from the first p+p runs of the alice high level trigger at lhc
    Author: Kanaki, Kalliopi
    Subject: Level (Quantity) ; Reconstruction ; Collisions ; Clusters ; Detectors ; Networks ; Fittings ; Spectrometers ; Atomic and Molecular Physics (General) (So) ; Physics of Metals (MD) ; Physics (General) (Ah);
    Description: The High Level Trigger for the ALICE experiment at LHC is a powerful, sophisticated tool aimed at compressing the raw data volume and issuing selective triggers for events with desirable physics content. At its current state it integrates information from all major ALICE detectors, i. e. the inner tracking system, the time projection chamber, the electromagnetic calorimeters, the transition radiation detector and the muon spectrometer performing real-time event reconstruction. The steam engine behind HLT is a high performance computing cluster of several hundred nodes. It has to reduce the data rate from 25 GB/s to 1.25 GB/s for fitting the DAQ mass storage bandwidth. The cluster is served by a full GigaBit Ethernet network, in addition to an InfiniBand backbone network. To cope with the great challenge of Pb+Pb collisions in autumn 2010, its performance capabilities are being enhanced with the addition of new nodes. Towards the same end the first GPU co-processors are in place. During the first period of data taking with p+p collisions the HLT was extensively used to reconstruct, analyze and display data from the various participating detectors. Among other tasks it contributed to the monitoring of the detector performance, selected events for their calibration and efficiency studies, and estimated primary and secondary vertices from p+p collisions identifying V 0 topologies. The experience gained during these first months of online operation will be presented.
    Is part of: Journal of Physics: Conference Series, 2011, Vol.331(2), p.022011 (5pp)
    Identifier: 1742-6588 (ISSN); 1742-6596 (E-ISSN); 10.1088/1742-6596/331/2/022011 (DOI)

    • Several versions

    Introducing fundamental object-oriented programming concepts in preschool education within the context of physical science courses

    Kanaki, Kalliopi, Kalogiannakis, Michail
    Education and Information Technologies, 2018, Vol.23(6), pp.2673-2698 [Peer Reviewed Journal]

    • Several versions

    Particle-yield modification in jet-like azimuthal dihadron correlations in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV

    Aamodt, Kenneth, Altinpinar, Sedat, Djuvsland, Øystein, Fehlker, Dominik, Haaland, Øystein Senneset, Huang, Meidana, Kanaki, Kalliopi, Larsen, Dag Toppe, Lien, Jørgen, Liu, Lijiao, Lønne, Per-Ivar, Nystrand, Joakim, Øvrebekk, Gaute, Richter, Matthias, Røhrich, Dieter
    Physical review letters, 2012 [Peer Reviewed Journal]

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    DECal, a Python tool for the efficiency calculation of thermal neutron detectors based on thin-film converters

    Kanaki, Kalliopi, Piscitelli, Francesco
    arXiv.org, Jan 22, 2018
    © ProQuest LLC All rights reserved, Engineering Database, Publicly Available Content Database, ProQuest Engineering Collection, ProQuest Technology Collection, ProQuest SciTech Collection, Materials Science & Engineering Database, ProQuest Central (new), ProQuest Central Korea, SciTech Premium Collection, Technology Collection, ProQuest Central Essentials, ProQuest One Academic, Engineering Collection (ProQuest)
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    Title: DECal, a Python tool for the efficiency calculation of thermal neutron detectors based on thin-film converters
    Author: Kanaki, Kalliopi; Piscitelli, Francesco
    Contributor: Piscitelli, Francesco (pacrepositoryorg)
    Subject: Neutrons ; Sensors ; Efficiency ; Detectors ; Graphical User Interface ; Source Code ; Mathematical Analysis ; Thermal Neutrons ; Thin Films ; Converters ; Computing Time ; Neutron Counters ; Computational Efficiency ; Computational Physics ; Instrumentation and Detectors
    Description: The Detector Efficiency Calculator (DECal) is a series of Python functions and tools designed to analytically calculate, visualise and optimise the detection efficiency of thermal neutron detectors, which are based on thin-film converters. The implementation presented in this article concerns 10B-based detectors in particular. The code can be run via a graphical user interface, as well as via the command line. The source code is openly available to interested users via a GitHub repository.
    Is part of: arXiv.org, Jan 22, 2018
    Identifier: 2331-8422 (E-ISSN)

    • Several versions

    Measurement of the Cross Section for Electromagnetic Dissociation with Neutron Emission in Pb-Pb Collisions at √sNN = 2.76 TeV

    Alme, Johan, Erdal, Hege Austrheim, Helstrup, Håvard, Hetland, Kristin Fanebust, Kileng, Bjarte, Altinpinar, Sedat, Djuvsland, Øystein, Fehlker, Dominik, Haaland, Øystein Senneset, Huang, Meidana, Kanaki, Kalliopi, Langøy, Rune, Larsen, Dag Toppe, Lien, Jørgen, Liu, Lijiao
    Physical review letters, 2012 [Peer Reviewed Journal]

    • Several versions

    Production of muons from heavy flavour decays at forward rapidity in pp and Pb-Pb collisions at $\sqrt {s_{NN}}$ = 2.76 TeV

    Alme, Johan, Erdal, Hege Austrheim, Helstrup, Håvard, Hetland, Kristin Fanebust, Kileng, Bjarte, Altinpinar, Sedat, Djuvsland, Øystein, Fehlker, Dominik, Haaland, Øystein Senneset, Huang, Meidana, Kanaki, Kalliopi, Langøy, Rune, Lien, Jørgen, Liu, Lijiao, Lønne, Per-Ivar
    Physical review letters, 2012 [Peer Reviewed Journal]

    • Several versions

    D meson elliptic flow in non-central Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76TeV

    Alme, Johan, Erdal, Hege Austrheim, Helstrup, Håvard, Hetland, Kristin Fanebust, Kileng, Bjarte, Altinpinar, Sedat, Djuvsland, Øystein, Fehlker, Dominik, Haaland, Øystein Senneset, Huang, Meidana, Kanaki, Kalliopi, Langøy, Rune, Larsen, Dag Toppe, Lien, Jørgen, Lønne, Per-Ivar
    Physical review letters, 2013 [Peer Reviewed Journal]

    • Several versions

    J/$\psi$ suppression at forward rapidity in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV

    Alme, Johan, Erdal, Hege Austrheim, Helstrup, Håvard, Hetland, Kristin Fanebust, Kileng, Bjarte, Altinpinar, Sedat, Djuvsland, Øystein, Fehlker, Dominik, Haaland, Øystein Senneset, Huang, Meidana, Kanaki, Kalliopi, Langøy, Rune, Lien, Jørgen, Liu, Lijiao, Lønne, Per-Ivar
    Physical review letters, 2012 [Peer Reviewed Journal]

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    DECal, a Python tool for the efficiency calculation of thermal neutron detectors based on thin-film converters

    Basañez, Álvaro Carmona, Kanaki, Kalliopi, Piscitelli, Francesco
    Cornell University
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    Title: DECal, a Python tool for the efficiency calculation of thermal neutron detectors based on thin-film converters
    Author: Basañez, Álvaro Carmona; Kanaki, Kalliopi; Piscitelli, Francesco
    Subject: Physics - Computational Physics ; Physics - Instrumentation And Detectors
    Description: The Detector Efficiency Calculator (DECal) is a series of Python functions and tools designed to analytically calculate, visualise and optimise the detection efficiency of thermal neutron detectors, which are based on thin-film converters. The implementation presented in this article concerns 10B-based detectors in particular. The code can be run via a graphical user interface, as well as via the command line. The source code is openly available to interested users via a GitHub repository.
    Identifier: 1801.07124 (ARXIV ID)

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    A stochastic process approach to multilayer neutron detectors

    Anevski, Dragi, Hall-Wilton, Richard, Kanaki, Kalliopi, Pastukhov, Vladimir
    arXiv.org, Nov 7, 2018
    © ProQuest LLC All rights reserved, Engineering Database, Publicly Available Content Database, ProQuest Engineering Collection, ProQuest Technology Collection, ProQuest SciTech Collection, Materials Science & Engineering Database, ProQuest Central (new), ProQuest Central Korea, SciTech Premium Collection, Technology Collection, ProQuest Central Essentials, ProQuest One Academic, Engineering Collection (ProQuest)
    Available
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    Title: A stochastic process approach to multilayer neutron detectors
    Author: Anevski, Dragi; Hall-Wilton, Richard; Kanaki, Kalliopi; Pastukhov, Vladimir
    Contributor: Pastukhov, Vladimir (pacrepositoryorg)
    Subject: Estimating Techniques ; Stochastic Models ; Economic Models ; Sensors ; Consistency ; Stochastic Processes ; Multilayers ; Gas Detectors ; Probability Theory ; Helium ; Asymptotic Properties ; Normality ; Neutrons ; Maximum Likelihood Estimators ; Neutron Absorption ; Neutron Counters ; Helium Isotopes
    Description: The sparsity of the isotope Helium-3, ongoing since 2009, has initiated a new generation of neutron detectors. One particularly promising development line for detectors is the multilayer gaseous detector. In this paper, a stochastic process approach is used to determine the neutron's energy from the additional data afforded by the multilayer nature of these novel detectors. The data from a multi-layer detector consists of counts of the number of absorbed neutrons along the sequence of the detector's layers, in which the neutron absorption probability is unknown. We study the Maximum Likelihood estimator for the intensity and absorption probability, show its consistency and asymptotic normality, as the experiment time (or the number of incoming neutrons) goes to infinity. We combine these results with known results on the relation between the absorption probability and the wavelength to derive an estimator of the wavelength and to show consistency and asymptotic normality for the estimator.
    Is part of: arXiv.org, Nov 7, 2018
    Identifier: 2331-8422 (E-ISSN)