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1.
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Comparison of measurement and simulation of ATLAS cavern radiation background
/ Heijne, E (CERN ; IEAP CTU, Prague) ; Koi, T (SLAC) ; Leroy, C (Montreal U.) ; Oberlack, H (Munich, Max Planck Inst.) ; Pospisil, S (IEAP CTU, Prague) ; Sherwood, P (Imperial Coll., London) ; Shupe, M (Arizona U.) ; Solc, J (IEAP CTU, Prague) ; Suk, M (IEAP CTU, Prague) ; Takai, H (Brookhaven) et al.
Sixteen Medipix2 pixel detector based (MPX) devices were
operated at various positions within the ATLAS detector and cavern
continuously from early 2008 up to 2013. In addition to photons,
each MPX detector is capable to detect charged particles, and
neutrons as it is covered with a mask of converter materials
dividing its area into regions sensitive to thermal or fast
neutrons. [...]
2022 - 35 p.
- Published in : JINST 17 (2022) P01027
Fulltext: PDF;
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2.
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Thermal neutron measurements by Timepix detector in H4IRRAD at CERN
/ Biskup, B (ECFA ; Prague, Tech. U.) ; Brugger, M (CERN) ; Calviani, M (CERN) ; Efthymiopoulos, I (CERN) ; Pospisil, S (Prague, Tech. U.) ; Solc, J (Prague, Inst. Metrology) ; Stekl, I (Prague, Tech. U.) ; Vykydal, Z (Prague, Inst. Metrology)
Timepix, a pixel detector, was installed in the H4IRRAD irradiation area at CERN to study its response to a mixed radiation field. The measured data were compared to Monte Carlo simulations performed by the FLUKA code. [...]
2019
- Published in : Nucl. Instrum. Methods Phys. Res., A 944 (2019) 162530
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3.
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Induced radioactivity in ATLAS cavern measured by MPX detector network
/ Campbell, M (CERN) ; Heijne, E (IEAP CTU, Prague ; CERN) ; Leroy, C (Montreal U.) ; Nessi, M (CERN) ; Pospisil, S (IEAP CTU, Prague) ; Solc, J (IEAP CTU, Prague ; Czech Metrology Inst., Brno) ; Suk, M (IEAP CTU, Prague) ; Turecek, D (IEAP CTU, Prague ; CESNET, Praha) ; Vykydal, Z (IEAP CTU, Prague ; Czech Metrology Inst., Brno)
An application of the use of MPX detectors for the measurement of induced radioactivity in the Large Hadron Collider (LHC) experiment environment is presented. The sixteen ATLAS-MPX detectors measured the associated photon ambient dose equivalent rate (H$^*$(10) rate) in ATLAS due to the LHC operation. [...]
2019 - 13 p.
- Published in : JINST 14 (2019) P03010
Fulltext from Publisher: PDF;
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4.
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Penetration of ionizing radiation from ATLAS cavern into USA15 measured by MPX detectors
/ Campbell, M (CERN) ; Heijne, E (IEAP CTU, Prague ; CERN) ; Leroy, C (Montreal U.) ; Nessi, M (CERN) ; Pospisil, S (IEAP CTU, Prague) ; Solc, J (IEAP CTU, Prague ; Czech Metrology Inst., Brno) ; Suk, M (IEAP CTU, Prague) ; Turecek, D (IEAP CTU, Prague ; CESNET, Praha) ; Vykydal, Z (IEAP CTU, Prague ; Czech Metrology Inst., Brno)
The attenuation of the ionizing radiation through a concrete wall between the ATLAS Cavern UX15 and Service Cavern USA15 was measured during LHC collisions in 2012 with two ATLAS-MPX detectors. The detectors were mounted on either side of the wall separating UX15 and USA15. [...]
2019 - 8 p.
- Published in : JINST 14 (2019) P02020
Fulltext: PDF; Fulltext from Publisher: PDF;
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5.
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Luminosity from thermal neutron counting with MPX detectors and relation to ATLAS reference luminosity at $\sqrt s =$ 8 TeV proton-proton collisions
/ Sopczak, A (IEAP CTU, Prague) ; Ali, B (IEAP CTU, Prague) ; Asbah, N (Montreal U.) ; Bergmann, B (IEAP CTU, Prague) ; Bekhouche, K (Biskra U.) ; Caforio, D (IEAP CTU, Prague) ; Campbell, M (CERN) ; Heijne, E (IEAP CTU, Prague) ; Leroy, C (Montreal U.) ; Lipniacka, A (Bergen U.) et al.
A luminosity determination based on thermal neutron counting with six MPX silicon pixel devices installed in the ATLAS cavern is presented. Recently, the ATLAS Collaboration published final √s=8 TeV luminosity results. [...]
2017 - 8 p.
- Published in : JINST 12 (2017) P09010
Fulltext: PDF;
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6.
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MPX detectors as LHC luminosity monitor
/ Sopczak, Andre (IEAP CTU, Prague) ; Ali, Babar (IEAP CTU, Prague) ; Asbah, Nedaa (McGill U.) ; Bergmann, Benedikt (IEAP CTU, Prague) ; Bekhouche, Khaled (Biskra U.) ; Caforio, Davide (IEAP CTU, Prague) ; Campbell, Michael (CERN) ; Heijne, Erik (IEAP CTU, Prague) ; Leroy, Claude (McGill U.) ; Lipniacka, Anna (Bergen U.) et al.
A network of 16 Medipix-2 (MPX) silicon pixel devices was installed in the ATLAS detector cavern at CERN. It was designed to measure the composition and spectral characteristics of the radiation field in the ATLAS experiment and its surroundings. [...]
2016 - 9 p.
- Published in : 10.1109/NSSMIC.2015.7581870
In : 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, San Diego, CA, USA, 31 Oct - 7 Nov 2015, pp.7581870
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7.
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8.
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Identification of high transverse momentum top quarks in pp collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
/ ATLAS Collaboration
This paper presents studies of the performance of several jet-substructure techniques, which are used to identify hadronically decaying top quarks with high transverse momentum contained in large-radius jets. The efficiency of identifying top quarks is measured using a sample of top-quark pairs and the rate of wrongly identifying jets from other quarks or gluons as top quarks is measured using multijet events collected with the ATLAS experiment in 20.3 fb$^{-1}$ of 8 TeV proton-proton collisions at the Large Hadron Collider. [...]
arXiv:1603.03127; CERN-EP-2016-010; CERN-EP-2016-010.-
Geneva : CERN, 2016-06-16 - 77 p.
- Published in : JHEP 06 (2016) 093
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Springer Open Access article: PDF;
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