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CERN Published Articles

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2017-03-22
16:20
Staircase and saw-tooth field emission steps from nanopatterned n-type GaSb surfaces / Kildemo, M. (Norwegian U. Sci. Tech.) ; Inntjore Levinsen, Y. (Norwegian U. Sci. Tech. ; CERN) ; Le Roy, S. (Lab. Surface du Verre et Interfaces, Aubervilliers) ; Søndergård, E. (Lab. Surface du Verre et Interfaces, Aubervilliers)
High resolution field emission experiments from nanopatterned GaSb surfaces consisting of densely packed nanocones prepared by low ion-beam-energy sputtering are presented. Both uncovered and metal-covered nanopatterned surfaces were studied. [...]
2009 - Published in : J. Vac. Sci. Technol. A 27 (2009) L18-L23

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2017-03-22
16:07
Progress on photonic crystals / Lecoq, P (CERN) ; Auffray, E (CERN) ; Gundacker, S (CERN) ; Hillemanns, H (CERN) ; Jarron, P (CERN) ; Knapitsch, A (CERN) ; Leclercq, J L (Lyon, Ecole Centrale) ; Letartre, X (Lyon, Ecole Centrale) ; Meyer, T (CERN) ; Pauwels, K (CERN) et al.
The renewal of interest for Time of Flight Positron Emission Tomography (TOF PET) has highlighted the need for increasing the light output of scintillating crystals and in particular for improving the light extraction from materials with a high index of refraction. One possible solution to overcome the problem of total internal reflection and light losses resulting from multiple bouncing within the crystal is to improve the light extraction efficiency at the crystal/photodetector interface by means of photonic crystals, i.e. [...]
2010
In : 2010 IEEE Nuclear Science Symposium, Medical Imaging Conference, and Room Temperature Semiconductor Detectors Workshop, Knoxville, TN, USA, 30 Oct - 6 Nov 2010, pp.1970-1975

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2017-03-22
16:03
Effect of Aspect Ratio on the Light Output of Scintillators / Pauwels, Kristof (CERN) ; Auffray, E. (CERN) ; Gundacker, S. (CERN) ; Knapitsch, A. (CERN) ; Lecoq, P. (CERN)
The influence of the geometry of the scintillators is presented in this paper. We focus on the effect of narrowing down the section of crystals that have a given length. [...]
2012 - Published in : IEEE Trans. Nucl. Sci. 59 (2012) 2340-2345

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2017-03-22
15:57
A Systematic Study to Optimize SiPM Photo-Detectors for Highest Time Resolution in PET / Gundacker, S. (CERN) ; Auffray, E. (CERN) ; Frisch, B. (CERN) ; Hillemanns, H. (CERN) ; Jarron, P. (INFN, Turin) ; Meyer, T. (CERN) ; Pauwels, K. (CERN) ; Lecoq, P. (CERN)
We report on a systematic study of time resolution made with three different commercial silicon photomultipliers (SiPMs) (Hamamatsu MPPC S10931-025P, S10931-050P, and S10931-100P) and two LSO scintillating crystals. This study aimed to determine the optimum detector conditions for highest time resolution in a prospective time-of-flight positron emission tomography (TOF-PET) system. [...]
2012 - Published in : IEEE Trans. Nucl. Sci. 59 (2012) 1798-1804

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2017-03-22
14:57
A comprehensive & systematic study of coincidence time resolution and light yield using scintillators of different size, wrapping and doping / Auffray, E. (CERN) ; Frisch, B. (CERN) ; Geraci, F. (Milan Bicocca U.) ; Ghezzi, A. (Milan Bicocca U.) ; Gundacker, S. (CERN) ; Hillemanns, H. (CERN) ; Jarron, P. (INFN, Turin) ; Meyer, T. (CERN) ; Paganoni, M. (Milan Bicocca U.) ; Pauwels, K. (CERN) et al.
Over the last years interest in using time-of-flight-based Positron Emission Tomography (TOF-PET) systems has significantly increased. High time resolution in such PET systems is a powerful tool to improve signal to noise ratio and therefore to allow smaller exposure rates for patients as well as faster image reconstruction. [...]
2011
In : 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, Valencia, Spain, 23 - 29 Oct 2011, pp.64-71

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2017-03-21
06:29
ALICE inner tracking system readout electronics prototype testing with the CERN ``Giga Bit Transceiver'' / Schambach, J (Texas U.) ; Rossewij, M J (Utrecht U.) ; Sielewicz, K M (CERN ; Warsaw U. of Tech.) ; Rinella, G Aglieri (CERN) ; Bonora, M (CERN ; Salzburg U.) ; Ferencei, J (IEAP CTU, Prague) ; Giubilato, P (CERN) ; Vanat, T (IEAP CTU, Prague ; Rez, Nucl. Phys. Inst.) /for the ALICE Collaboration
The ALICE Collaboration is preparing a major detector upgrade for the LHC Run 3, which includes the construction of a new silicon pixel based Inner Tracking System (ITS). The ITS readout system consists of 192 readout boards to control the sensors and their power system, receive triggers, and deliver sensor data to the DAQ. [...]
2016 - Published in : J. Instrum. 11 (2016) C12074 IOP Open Access article: PDF;
In : Topical Workshop on Electronics for Particle Physics, Karlsruhe, Germany, 26 - 30 Sep 2016, pp.C12074

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2017-03-21
06:29
Development, characterization and beam tests of a small-scale TORCH prototype module / Castillo García, L (LPHE, Lausanne ; CERN) ; Brook, N (Imperial Coll., London) ; Conneely, T (Unlisted, UK) ; Cussans, D (Bristol U.) ; Föhl, K (CERN) ; Forty, R (CERN) ; Frei, C (CERN) ; Gao, R (Oxford U.) ; Gys, T (CERN) ; Harnew, N (Oxford U.) et al.
Within the TORCH (Time Of internally Reflected CHerenkov light) R&D; project, a small-scale TORCH prototype module is currently under study. Circular-shaped micro-channel plate photon detectors with finely segmented square anodes (32 × 32 channels) have been produced for TORCH requirements in industrial partnership. [...]
2016 - 10 p. - Published in : J. Instrum. 11 (2016) C05022 IOP Open Access article: PDF;
In : International Workshop on Fast Cherenkov Detectors : Photon detection, DIRC design and DAQ, Giessen, Germany, 11 - 13 Nov 2015, pp.C05022

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2017-03-18
06:31
Jets and Jets + missing ET at LHC / Blumenschein, U (Barcelona, IFAE)
The LHC experiments ATLAS $^{1}$ and CMS $^{2}$ have studied the reconstruction of the kinematic properties of jets and missing transverse energy with fully-simulated Monte Carlo for various final states. In addition, data-driven methods have been developed in order to validate the jet calibration..
Vietnam : The Gioi, 2008 - 4 p. - Published in : , pp. 241-244 Published version: PDF;
In : 43rd Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 08 - 15 Mar 2008, pp.241-244

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2017-03-18
06:31
Searches for GMSB and for high-$E_\tau$ di-lepton pair events at the LHC / del Re, Daniele (U. Rome La Sapienza (main) ; INFN, Rome)
We discuss the potential of the ATLAS and the CMS experiments to observe new physics in the Gauge Mediated Supersymmetry Breaking model and to discover new- high mass resonances decaying two leptons..
Vietnam : The Gioi, 2008 - 4 p. - Published in : , pp. 115-118 Published version: PDF;
In : 43rd Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 08 - 15 Mar 2008, pp.115-118

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2017-03-17
06:00
Top quark physics at the LHC / Vander Donckt, M (CERN) /ATLAS ; CMS
The Large Hadron Collider (LHC) will provide a huge amount of top-antitop events, making the LHC a top quark factory. producing 1 $t\bar{t}$ pair per i;second at a luminosity of $10^{33}$ $cm^{-2}$ $s^{-1}$. [...]
Vietnam : The Gioi, 2008 - 4 p. - Published in : , pp. 141-144 Published version: PDF;
In : 43rd Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 08 - 15 Mar 2008, pp.141-144

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