CERN Accelerating science

CERN Published Articles

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2017-03-23
14:11
Ionizing Energy Depositions After Fast Neutron Interactions in Silicon / Bergmann, Benedikt (IEAP CTU, Prague) ; Pospisil, Stanislav (IEAP CTU, Prague) ; Caicedo, Ivan (IEAP CTU, Prague) ; Kierstead, James (Brookhaven) ; Takai, Helio (Brookhaven) ; Frojdh, Erik (CERN)
In this study we present the ionizing energy depositions in a 300 μm thick silicon layer after fast neutron impact. With the Time-of-Flight (ToF) technique, the ionizing energy deposition spectra of recoil silicons and secondary charged particles were assigned to (quasi-)monoenergetic neutron energies in the range from 180 keV to hundreds of MeV. [...]
2016 - Published in : IEEE Trans. Nucl. Sci. 63 (2016) 2372-2378

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2017-03-23
14:03
Embedded Detection and Correction of SEU Bursts in SRAM Memories Used as Radiation Detectors / Secondo, R. (CERN) ; Foucard, G. (CERN) ; Danzeca, S. (CERN) ; Losito, R. (CERN) ; Peronnard, P. (CERN) ; Masi, A. (CERN) ; Brugger, M. (CERN) ; Dusseau, L. (Montpellier U.)
SRAM memories are widely used as particle fluence detectors in high radiation environments, such as in the Radiation Monitoring System (RadMon) currently in operation in the CERN accelerator complex. Multiple Cell Upsets (MCUs), arising from micro-latchup events, are characterized by a large number of SEUs, ultimately affecting the measurement of particle fluxes and resulting in corrupted data and accuracy losses. [...]
2016 - Published in : IEEE Trans. Nucl. Sci. 63 (2016) 2168-2175

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2017-03-23
13:44
Heavy-Ion Radiation Impact on a 4Mb FRAM under Different Test Conditions / Gupta, V. (Montpellier U.) ; Bosser, A. (Montpellier U.) ; Tsiligiannis, G. (CERN) ; Zadeh, A. (ESTEC, Noordwijk) ; Javanainen, A. (Vanderbilt U. (main)) ; Virtanen, A. (Jyvaskyla U.) ; Puchner, H. (Cypress Semicond., Aerosp. & Defense, San Jose) ; Saigne, F. (Montpellier U.) ; Wrobel, F. (Montpellier U.) ; Dilillo, L. (Montpellier U.)
The impact of heavy-ions on commercial Ferroelectric Memories (FRAMs) is analyzed. The influence of different test modes (static and dynamic) on this memory is investigated. [...]
2015
In : Conference on Radiation and its Effects on Components and Systems, Moscow, Russia, 14 - 18 Sep 2015, pp.7365617

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2017-03-23
13:34
Distributed Optical Fiber Radiation Sensing at CERN High Energy AcceleRator Mixed Field Facility (CHARM) / Toccafondo, I. (CERN ; Sant'Anna School Adv. Studies, Pisa) ; Thornton, A. (CERN) ; Guillermain, E. (CERN) ; Kuhnhenn, J. (Fraunhofer Inst., Euskirchen) ; Mekki, J. (CERN) ; Brugger, M. (CERN) ; Di Pasquale, F. (Sant'Anna School Adv. Studies, Pisa)
The first results of distributed optical fiber radiation sensing measurements based on radiation induced attenuation (RIA) at the new mixed-field irradiation facility CHARM are presented..
2015
In : Conference on Radiation and its Effects on Components and Systems, Moscow, Russia, 14 - 18 Sep 2015, pp.7365601

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2017-03-23
13:06
A Methodology for the Analysis of Memory Response to Radiation through Bitmap Superposition and Slicing / Bosser, A. (Jyvaskyla U.) ; Gupta, V. (Montpellier U.) ; Tsiligiannis, G. (CERN) ; Ferraro, R. (Montpellier U.) ; Frost, C. (Rutherford) ; Javanainen, A. (Jyvaskyla U.) ; Puchner, H. (Cypress Semicond., Technol., San Jose) ; Rossi, M. (Jyvaskyla U.) ; Saigne, F. (Montpellier U.) ; Virtanen, A. (Jyvaskyla U.) et al.
A methodology is proposed for the statistical analysis of memory radiation test data, with the aim of identifying trends in the single-even upset (SEU) distribution. The treated case study is a 65nm SRAM irradiated with neutrons, protons and heavy-ions..
2015 - Published in : 10.1109/RADECS.2015.7365578
In : Conference on Radiation and its Effects on Components and Systems, Moscow, Russia, 14 - 18 Sep 2015, pp.7365578

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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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