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CERN Document Server Sök i 12 journaler efter:  1 - 10nästa  gå till journal: Sökningen tog 0.68 sekunder. 
1.
Enhanced Scintillation Light Extraction Using Nanoimprinted Photonic Crystals / Singh, Bipin (Radiat. Monitor. Devices, Watertown) ; Marshall, Matthew S J (Radiat. Monitor. Devices, Watertown) ; Waterman, Shane (Radiat. Monitor. Devices, Watertown) ; Pina-Hernandez, Carlos (aBeam Technologies, Hayward) ; Koshelev, Alexander (aBeam Technologies, Hayward) ; Munechika, Keiko (aBeam Technologies, Hayward) ; Knapitsch, Arno (CERN) ; Salomoni, Matteo (CERN) ; Pots, Rosalinde (CERN) ; Lecoq, Paul (CERN) et al.
The extraction of scintillation light from a crystal with high efficiency and low time jitter is vital for realizing much-needed gains in the performance of numerous radiation detection and imaging instruments that are vital components in medical imaging, industrial, and homeland security applications for the detection, localization, and energy classification of X-rays, $\gamma$-rays, or neutrons. Nanostructures such as photonic crystals (PhCs) maximize extraction of usable scintillation light that is otherwise lost when a high refractive index (RI) scintillator is coupled to a photodetector with low RI window. [...]
2018 - 7 p. - Published in : IEEE Trans. Nucl. Sci. 65 (2018) 1059-1065
2.
Light Extraction From Scintillating Crystals Enhanced by Photonic Crystal Structures Patterned by Focused Ion Beam / Modrzynski, Pawel (University Coll. London) ; Gotszalk, Teodor (Wroclaw Tech. U.) ; Knapitsch, Arno (CERN) ; Kunicki, Piotr (Wroclaw Tech. U.) ; Lecoq, Paul (CERN) ; Moczala, Magdalena (Wroclaw Tech. U.) ; Papakonstantinou, Ioannis (University Coll. London) ; Auffray, Etiennette (CERN)
“Photonic Crystals (PhC)” have been used in a variety of fields as a structure for improving the light extraction efficiency from materials with high index of refraction. In previous work we already showed the light extraction improvement of several PhC covered LYSO crystals in computer simulations and practical measurements. [...]
2016 - 5 p. - Published in : IEEE Trans. Nucl. Sci. 63 (2016) 644-648
In : 13th International Conference on Inorganic Scintillators and Their Applications, Berkeley, CA, USA, 7 - 12 Jun 2015, pp.644-648
3.
Large Scale Production of Photonic Crystals on Scintillators / Knapitsch, Arno (CERN) ; Auffray, Etiennette (CERN) ; Barbastathis, George (MIT) ; Chevalier, Celine (Lyon U.) ; Hsieh, Chih-Hung (MIT) ; Kim, Jeong-Gil (MIT) ; Li, Shuai (MIT) ; Marshall, Matthew S J ; Mazurczyk, Radoslaw (Lyon U.) ; Modrzynski, Pawel (CERN) et al.
Heavy inorganic scintillator based detectors are used in various applications. You can find them in high energy physics as well as in nuclear medical imaging systems but also in homeland security radiation monitoring devices. [...]
2016 - 5 p. - Published in : IEEE Trans. Nucl. Sci. 63 (2016) 639-643
In : 13th International Conference on Inorganic Scintillators and Their Applications, Berkeley, CA, USA, 7 - 12 Jun 2015, pp.639-643
4.
Study of the Angular Distribution of Scintillation Photons / Fornaro, Giulia Alice (CERN ; U. Milan ; INFN Milan) ; Pauwels, Kristof (CERN) ; Ghezzi, Alessio (Milan Bicocca U. ; CERN) ; Knapitsch, Arno (CERN) ; Modrzynski, Pawel (CERN) ; Pizzichemi, Marco (Milan Bicocca U. ; CERN) ; Lecoq, Paul (CERN) ; Auffray, Etiennette (CERN)
This paper presents a characterization method to experimentally determine the angular distribution of scintillation light. By exciting LYSO crystals with a radioactive source, we measured the light angular profiles obtained with samples of different geometries in different conditions of wrapping. [...]
2014 - Published in : IEEE Trans. Nucl. Sci. 61 (2014) 456-461
5.
Effects of Photonic Crystals on the Light Output of Heavy Inorganic Scintillators / Knapitsch, Arno (Vienna, Tech. U.) ; Auffray, Etiennette (CERN) ; Fabjan, Christian W (Vienna, Tech. U.) ; Leclercq, Jean-Louis (Lyon, IPN) ; Letartre, Xavier (Lyon, IPN) ; Mazurczyk, Radoslaw (Lyon, IPN) ; Lecoq, Paul (CERN)
Photonic crystals (PhCs) are optical materials which can affect the propagation of light in multiple ways. In recent years PhCs contributed to major technological developments in the field of semiconductor lasers, light emitting diodes and photovoltaic applications. [...]
2013 - Published in : IEEE Trans. Nucl. Sci. 60 (2013) 2322-2329
6.
Photonic Crystals: Enhancing the Light Output of Scintillation Based Detectors / Knapitsch, Arno Richard
A scintillator is a material which emits light when excited by ionizing radiation [...]
CERN-THESIS-2012-279 - 210 p.

Fulltext
7.
Measurement of the inclusive production cross sections for forward jets and for dijet events with one forward and one central jet in pp collisions at $\sqrt{s}$ = 7 TeV / CMS Collaboration
The inclusive production cross sections for forward jets, as well for jets in dijet events with at least one jet emitted at central and the other at forward pseudorapidities, are measured in the range of transverse momenta pt = 35-150 GeV/c in proton-proton collisions at sqrt(s) = 7 TeV by the CMS experiment at the LHC. Forward jets are measured within pseudorapidities 3.2<|eta|<4.7, and central jets within the |eta|<2.8 range. [...]
arXiv:1202.0704; CMS-FWD-11-002; CERN-PH-EP-2011-179; CMS-FWD-11-002; CERN-PH-EP-2011-179.- Geneva : CERN, 2012 - 37 p. - Published in : JHEP 06 (2012) 036 Fulltext: PDF; Springer Open Access article: PDF; External link: Rivet analyses reference
8.
Centrality dependence of dihadron correlations and azimuthal anisotropy harmonics in PbPb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV / CMS Collaboration
Measurements from the CMS experiment at the LHC of dihadron correlations for charged particles produced in PbPb collisions at a nucleon-nucleon centre-of-mass energy of 2.76 TeV are presented. The results are reported as a function of the particle transverse momenta (pt) and collision centrality over a broad range in relative pseudorapidity [Delta(eta)] and the full range of relative azimuthal angle [Delta(phi)]. [...]
arXiv:1201.3158; CMS-HIN-11-006; CERN-PH-EP-2011-222; CMS-HIN-11-006; CERN-PH-EP-2011-222.- Geneva : CERN, 2012-05-30 - 39 p. - Published in : Eur. Phys. J. C 72 (2012) 2012 Fermilab Library: PDF; Fulltext: PDF; Springer Open Access article: PDF;
9.
Measurement of isolated photon production in pp and PbPb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV / CMS Collaboration
Isolated photon production is measured in proton-proton and lead-lead collisions at nucleon-nucleon centre-of-mass energies of 2.76 TeV in the pseudorapidity range |eta|<1.44 and transverse energies ET between 20 and 80 GeV with the CMS detector at the LHC. The measured ET spectra are found to be in good agreement with next-to-leading-order perturbative QCD predictions. [...]
arXiv:1201.3093; CMS-HIN-11-002; CERN-PH-EP-2011-221; CMS-HIN-11-002; CERN-PH-EP-2011-221.- Geneva : CERN, 2013-07-16 - 22 p. - Published in : Phys. Lett. B 710 (2012) 256-277 Elsevier Open Access article: PDF; Fermilab Library Server: PDF; Fulltext: PDF; External link: DURHAM
10.
Measurement of the charge asymmetry in top-quark pair production in proton-proton collisions at $\sqrt{s}$ = 7 TeV / CMS Collaboration
The difference in angular distributions between top quarks and antiquarks, commonly referred to as the charge asymmetry, is measured in pp collisions at the LHC with the CMS experiment. The data sample corresponds to an integrated luminosity of 1.09 inverse femtobarns at a centre-of-mass energy of 7 TeV. [...]
arXiv:1112.5100; CERN-PH-EP-2011-217; CMS-TOP-11-014; CMS-TOP-11-014; CERN-PH-EP-2011-217.- Geneva : CERN, 2013-07-16 - 22 p. - Published in : Phys. Lett. B 709 (2012) 28-49 Elsevier Open Access article: PDF; Fulltext: PDF;

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