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    • Several versions

    Author Correction: A Monte Carlo feasibility study for neutron based real-time range verification in proton therapy

    Ytre-Hauge, Kristian Smeland, Skjerdal, Kyrre, Mattingly, John, Meric, Ilker
    Scientific reports, 09 October 2019, Vol.9(1), pp.14773 [Peer Reviewed Journal]

    • Several versions

    Photoproduction of rho0 in ultra--peripheral nuclear collisions at ALICE

    Skjerdal, Kyrre
    arXiv.org, Apr 25, 2013 [Peer Reviewed Journal]

    • Dissertation
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    Title: Photoproduction of ρ0 and Two–photon Production of Lepton Pairs in Ultra–peripheral Pb–Pb Collisions at the CERN LHC
    Author: Skjerdal, Kyrre
    Publisher: The University of Bergen
    Date: 2014
    Description: This thesis is based on the analysis of ultra–peripheral collisions collected by the ALICE Collaboration at the CERN LHC. ALICE is a general purpose detector designed to study heavy-ion collisions at ultra–relativistic energies with the purpose of investigating the properties of strongly interacting matter, similar to the matter that existed shortly after the Big Bang.In this analysis the charged particle tracking system of the central barrel in ALICE is used. The tracking system consists of an Inner Tracking System, with six layers of silicon detectors, and a large Time Projection Chamber. Trigger information is provided by the following detectors: The Silicon-Pixel Detector (SPD), a part of the Inner Tracking System; the Time–Of–Flight (TOF), located outside the TPC; the V0 detectors, plastic scintillators located outside of the central barrel, covering roughly two units of pseudorapidity on either side of mid-rapidity.Ultra–peripheral collisions are collisions between hadrons,...
    Identifier: 9788230828823 (ISBN); 8230828822 (ISBN)

    • Dissertation
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    Title: Photoproduction of ρ0 and Two–photon Production of Lepton Pairs in Ultra–peripheral Pb–Pb Collisions at the CERN LHC
    Author: Skjerdal, Kyrre
    Publisher: The University of Bergen
    Date: 2014-06-10
    Description: This thesis is based on the analysis of ultra–peripheral collisions collected by the ALICE Collaboration at the CERN LHC. ALICE is a general purpose detector designed to study heavy-ion collisions at ultra–relativistic energies with the purpose of investigating the properties of strongly interacting matter, similar to the matter that existed shortly after the Big Bang.In this analysis the charged particle tracking system of the central barrel in ALICE is used. The tracking system consists of an Inner Tracking System, with six layers of silicon detectors, and a large Time Projection Chamber. Trigger information is provided by the following detectors: The Silicon-Pixel Detector (SPD), a part of the Inner Tracking System; the Time–Of–Flight (TOF), located outside the TPC; the V0 detectors, plastic scintillators located outside of the central barrel, covering roughly two units of pseudorapidity on either side of mid-rapidity.Ultra–peripheral collisions are collisions...
    Identifier: 978-82-308-2882-3 (ISBN)

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    The NOVO project neutron detection for real-time range verification in proton therapy, A Monte Carlo feasibility study

    Skjerdal, Kyrre, Mattingly, John, Meric, Ilker
    arXiv.org, Oct 16, 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: The NOVO project neutron detection for real-time range verification in proton therapy, A Monte Carlo feasibility study
    Author: Skjerdal, Kyrre; Mattingly, John; Meric, Ilker
    Contributor: Meric, Ilker (pacrepositoryorg)
    Subject: Feasibility Studies ; Charged Particles ; Particle Tracking ; Detectors ; Converters ; Recoil ; Algorithms ; Nuclear Interactions ; Real Time ; Charged Particles ; Therapy ; Proton Beams ; Neutrons ; Uncertainty ; Radiation Dosage ; Feasibility Studies ; Medical Physics ; Instrumentation and Detectors
    Description: Uncertainties in the proton range in tissue during proton therapy limit the precision in treatment delivery. These uncertainties result in expanded treatment margins, thereby increasing radiation dose to healthy tissue. Real-time range verification techniques aim to reduce these uncertainties in order to take full advantage of the finite range of the primary protons. In this paper, we propose a novel concept for real-time range verification based on detection of secondary neutrons produced in nuclear interactions during proton therapy. The proposed detector concept is simple; consisting of a hydrogen-rich converter material followed by two charged particle tracking detectors, mimicking a proton recoil telescopic arrangement. Neutrons incident on the converter material are converted into protons through elastic and inelastic (n,p) interactions. The protons are subsequently detected in the tracking detectors. The information on the direction and position of these protons is then utilized...
    Is part of: arXiv.org, Oct 16, 2018
    Identifier: 2331-8422 (E-ISSN)

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    The NOVO project neutron detection for real-time range verification in proton therapy, A Monte Carlo feasibility study

    Ytre-Hauge, Kristian Smeland, Skjerdal, Kyrre, Mattingly, John, Meric, Ilker
    Cornell University
    Available
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    Title: The NOVO project neutron detection for real-time range verification in proton therapy, A Monte Carlo feasibility study
    Author: Ytre-Hauge, Kristian Smeland; Skjerdal, Kyrre; Mattingly, John; Meric, Ilker
    Subject: Physics - Medical Physics ; Physics - Instrumentation And Detectors
    Description: Uncertainties in the proton range in tissue during proton therapy limit the precision in treatment delivery. These uncertainties result in expanded treatment margins, thereby increasing radiation dose to healthy tissue. Real-time range verification techniques aim to reduce these uncertainties in order to take full advantage of the finite range of the primary protons. In this paper, we propose a novel concept for real-time range verification based on detection of secondary neutrons produced in nuclear interactions during proton therapy. The proposed detector concept is simple; consisting of a hydrogen-rich converter material followed by two charged particle tracking detectors, mimicking a proton recoil telescopic arrangement. Neutrons incident on the converter material are converted into protons through elastic and inelastic (n,p) interactions. The protons are subsequently detected in the tracking detectors. The information on the direction and position of these protons is then utilized in a new reconstruction algorithm to estimate the depth distribution of neutron production by the proton beam, which in turn is correlated with the primary proton range. In this paper, we present the results of a Monte Carlo feasibility study and show that the proposed concept could be used for real-time range verification with millimetric precision in proton therapy.
    Identifier: 1810.07062 (ARXIV ID)

    • Several versions

    Production of charged pions, kaons and protons at large transverse momenta in pp and Pb-Pb collisions at √sNN=2.76 TeV

    Alme, Johan, Altinpinar, Sedat, Djuvsland, Øystein, Fehlker, Dominik, Haaland, Øystein Senneset, Huang, Meidana, Lønne, Per-Ivar, Nystrand, Joakim, Rehman, Attiq Ur, Røhrich, Dieter, Skjerdal, Kyrre, Ullaland, Kjetil, Wagner, Boris, Yang, Shiming, Arsene, Ionut Christian, Bätzing, Paul Christoph
    Physics letters. B, 2014 [Peer Reviewed Journal]

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    Production of charged pions, kaons and protons at large transverse momenta in pp and Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV

    Alme, Johan, Altinpinar, Sedat, Djuvsland, Øystein, Fehlker, Dominik, Haaland, Øystein Senneset, Huang, Meidana, Lønne, Per - Ivar, Nystrand, Joakim, Rehman, Attiq Ur, Røhrich, Dieter, Skjerdal, Kyrre, Ullaland, Kjetil, Wagner, Boris, Yang, Shiming, Arsene, Ionut Christian, Bätzing, Paul Christoph
    Alme J, Altinpinar S, Djuvsland Ø, Fehlker D, Haaland ØS, Huang M, Lønne P, Nystrand J, Rehman Au, Røhrich D, Skjerdal K, Ullaland K, Wagner B, Yang S, Arsene IC, Bätzing P, Dordic O, Eyyubova G, Lindal S, Løvhøiden G, Milosevic J, Qvigstad H, Richter M, Røed K, Skaali TB, Tveter TS, Wikne JC, Zhao C, Langøy R, Lien JA, Abelev B, Adam J, Adamová D, Adare AM, Aggarwal MM, Aglieri Rinella G, Agocs AG, Agostinelli A, Aguilar Salazar S, Ahammed Z, Ahmad N, Ahmad Masoodi A, Ahn SU, Ahn S, Ajaz M, ALICE C, Windelband B, Zampolli C, Zaporozhets S, Zarochentsev A. Production of charged pions, kaons and protons at large transverse momenta in pp and Pb-Pb collisions at √sNN=2.76 TeV. Physics Letters B. 2014;736:196-207
    University of Bergen
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    Title: Production of charged pions, kaons and protons at large transverse momenta in pp and Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV
    Author: Alme, Johan; Altinpinar, Sedat; Djuvsland, Øystein; Fehlker, Dominik; Haaland, Øystein Senneset; Huang, Meidana; Lønne, Per - Ivar; Nystrand, Joakim; Rehman, Attiq Ur; Røhrich, Dieter; Skjerdal, Kyrre; Ullaland, Kjetil; Wagner, Boris; Yang, Shiming; Arsene, Ionut Christian; Bätzing, Paul Christoph
    Date: 2014-09
    Subject: Identified Particle Production ; High Pt ; Particle Ratios ; Baryon Anomaly ; Nuclear Modification Factor ; Alice ; Lhc ; Vdp::Matematikk Og Naturvitenskap: 400::Fysikk: 430::Kjerne- Og Elementærpartikkelfysikk: 431 ; Vdp::Mathematics And Natural Scienses: 400::Physics: 430::Nuclear And Elementary Particle Physics: 431
    Description: Transverse momentum spectra of $\pi^{\pm}, K^{\pm}$ and $p(\bar{p})$ up to $p_T$ = 20 GeV/c at mid-rapidity, |y| $\le$ 0.8, in pp and Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV have been measured using the ALICE detector at the LHC. At intermediate $p_T$ (2-8 GeV/c) an enhancement of the proton-to-proton ratio, (p + $\bar{p})/(\pi^+ + \pi^-$), with respect to pp collisions is observed and the ratio reaches 0.80 in central Pb-Pb collisions. The measurement of the nuclear modification factors for $\pi^{\pm}, K^{\pm}$ and $p(\bar{p})$ indicates that within the systematic and statistical uncertainties they are the same at high $p_T$ (> 10 GeV/c), suggesting that the chemical composition of leading particles from jets in the medium is similar to that of vacuum jets.
    Is part of: Alme J, Altinpinar S, Djuvsland Ø, Fehlker D, Haaland ØS, Huang M, Lønne P, Nystrand J, Rehman Au, Røhrich D, Skjerdal K, Ullaland K, Wagner B, Yang S, Arsene IC, Bätzing P, Dordic O, Eyyubova G, Lindal S, Løvhøiden G, Milosevic J, Qvigstad H, Richter M, Røed K, Skaali TB, Tveter TS, Wikne JC, Zhao C, Langøy R, Lien JA, Abelev B, Adam J, Adamová D, Adare AM, Aggarwal MM, Aglieri Rinella G, Agocs AG, Agostinelli A, Aguilar Salazar S, Ahammed Z, Ahmad N, Ahmad Masoodi A, Ahn SU, Ahn S, Ajaz M, ALICE C, Windelband B, Zampolli C, Zaporozhets S, Zarochentsev A. Production of charged pions, kaons and protons at large transverse momenta in pp and Pb-Pb collisions at √sNN=2.76 TeV. Physics Letters B. 2014;736:196-207

    • Several versions

    A Monte Carlo feasibility study for neutron based real-time range verification in proton therapy

    Ytre-Hauge, Kristian Smeland, Skjerdal, Kyrre, Mattingly, John, Meric, Ilker
    Scientific reports, 14 February 2019, Vol.9(1), pp.2011 [Peer Reviewed Journal]

    • Article
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    Charged-particle multiplicity measurement in proton–proton collisions at √s = 0.9 and 2.36 TeV with ALICE at LHC

    The Alice Collaboration, Aamodt, K., Abel, N., Alme, Johan, Bablok, Sebastian Robert, Haaland, Øystein Senneset, Huang, M., Kanaki, Kalliopi, Larsen, Dag Toppe, Nystrand, J., Pommeresche, Bjørn, Skjerdal, Kyrre, Wagner, B.
    The European Physical Journal C 68: 89-108
    University of Bergen
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    Title: Charged-particle multiplicity measurement in proton–proton collisions at √s = 0.9 and 2.36 TeV with ALICE at LHC
    Author: The Alice Collaboration; Aamodt, K.; Abel, N.; Alme, Johan; Bablok, Sebastian Robert; Haaland, Øystein Senneset; Huang, M.; Kanaki, Kalliopi; Larsen, Dag Toppe; Nystrand, J.; Pommeresche, Bjørn; Skjerdal, Kyrre; Wagner, B.
    Date: 2010-07-12
    Subject: Vdp::Mathematics And Natural Science: 400
    Description: There are 1058 authors. Only a few of them have been given author entries in addition to the Collaboration.
    This publication is dedicated to the memory of our colleague Hans-Åke Gustafsson.
    Charged-particle production was studied in proton–proton collisions collected at the LHC with the ALICE detector at centre-of-mass energies 0.9 TeV and 2.36 TeV in the pseudorapidity range |η|
    Is part of: The European Physical Journal C 68: 89-108