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Exploiting Differentiable Programming for the End-to-end Optimization of Detectors
/ MODE Collaboration
The coming of age of differentiable programming makes possible today to create complete
computer models of experimental apparatus that include the stochastic data-generation processes, the full modeling of the reconstruction and inference procedures, and a suitably defined
objective function, along with the cost of any given detector configuration, geometry and materials. [...]
2022. - 8 p.
Fulltext
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Toward the end-to-end optimization of particle physics instruments with differentiable programming
/ MODE Collaboration
The full optimization of the design and operation of instruments whose functioning relies on the interaction of radiation with matter is a super-human task, given the large dimensionality of the space of possible choices for geometry, detection technology, materials, data-acquisition, and information-extraction techniques, and the interdependence of the related parameters. On the other hand, massive potential gains in performance over standard, "experience-driven" layouts are in principle within our reach if an objective function fully aligned with the final goals of the instrument is maximized by means of a systematic search of the configuration space. [...]
arXiv:2203.13818.-
2023-05-25 - 56 p.
- Published in : Rev. Phys. 10 (2023) 100085
Fulltext: 2203.13818 - PDF; Publication - PDF;
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The charge sensitivity calibration of the upgraded ALICE Inner Tracking System
/ Yuan, Shiming (Bergen U.) ; Alme, Johan (Bergen U.) ; Keil, Markus (CERN) ; Ravasenga, Ivan (CERN) ; Richter, Matthias (Bergen U.) ; Röhrich, Dieter (Bergen U.)
/ALICE Collaboration
The ALICE detector is undergoing an upgrade for Run 3 at the LHC. A new Inner Tracking System (ITS) is part of this upgrade. [...]
arXiv:2110.12525.-
2022-04-29 - 7 p.
- Published in : JINST
Fulltext: PDF;
In : TWEPP 2021 Topical Workshop on Electronics for Particle Physics, Online, Online, 20 - 24 Sep 2021, pp.C04036
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4.
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System simulations for the ALICE ITS detector upgrade
/ Nesbo, Simon Voigt (HVL, Norway ; Bergen U.) ; Alme, Johan (Bergen U.) ; Bonora, Matthias (CERN) ; Giubilato, Piero (INFN, Padua ; Trento U. ; CERN) ; Helstrup, Håvard (HVL, Norway) ; Lupi, Matteo (CERN) ; Aglieri Rinella, Gianluca (CERN) ; Röhrich, Dieter (Bergen U.) ; Schambach, Joachim (Texas U.) ; Shahoyan, Ruben (CERN) et al.
The ALICE experiment at the CERN LHC will feature several upgrades for Run 3, one of which is a new Inner Tracking System (ITS). The ITS upgrade is currently under development and commissioning, and will be installed during the ongoing long shutdown 2.A number of factors will have an impact on the performance and readout efficiency of the ITS in run 3, and to that end, a simulation model of the readout logic in the ALPIDE pixel sensor chips for the ITS was developed, using the SystemC library for system level modeling in C++. [...]
2020 - 8 p.
- Published in : EPJ Web Conf. 245 (2020) 02011
Fulltext from publisher: PDF;
In : 24th International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4 - 8 Nov 2019, pp.02011
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External scrubber implementation for the ALICE ITS Readout Unit
/ Rentsch Ersdal, Magnus (Bergen U.) ; Alme, Johan (Bergen U.) ; Bonora, Matthias (CERN) ; Giubilato, Piero (INFN, Padua ; Padua U.) ; Lupi, Matteo (CERN) ; Voigt Nesbø, Simon (Bergen U. ; HVL, Norway) ; Rehman, Attiq Ur (Bergen U.) ; Röhrich, Dieter (Bergen U.) ; Aglieri Rinella, Gianluca (CERN) ; Schambach, Joachim (Texas U.) et al.
SISSA, 2020 - 5 p.
- Published in : PoS TWEPP2019 (2020) 136
In : TWEPP 2019 Topical Workshop on Electronics for Particle Physics, Santiago De Compostela, Spain, 2 - 6 Sep 2019, pp.136
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Simulations of busy probabilities in the ALPIDE chip and the upgraded ALICE ITS detector
/ Nesbo, Simon Voigt (HVL, Norway) ; Alme, Johan (U. Bergen (main)) ; Bonora, Matthias (CERN) ; Giubilato, Piero (INFN, Padua ; Padua U.) ; Helstrup, Haavard (HVL, Norway) ; Hristozkov, Svetlomir (CERN) ; Aglieri Rinella, Gianluca (CERN) ; Röhrich, Dieter (U. Bergen (main)) ; Schambach, Joachim (U. Texas, Austin (main)) ; Shahoyan, Ruben (CERN) et al.
/ALICE ITS
For the Long Shutdown 2 (LS2) upgrade of the ITS detector in the ALICE experiment at the LHC, a novel pixel detector chip, the ALPIDE chip, has been developed. In the event of busy ALPIDE chips in the ITS detector, the readout electronics may need to take appropriate action to minimize loss of data. [...]
SISSA, 2017 - 5 p.
- Published in : PoS TWEPP-17 (2017) 147
Fulltext: PDF; External link: PoS server
In : Topical Workshop on Electronics for Particle Physics, Santa Cruz, Ca, United States Of America, 11 - 15 Sep 2017, pp.147
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ALICE HLT high speed tracking on GPU
/ for the ALICE Collaboration
The on-line event reconstruction in ALICE is performed by the High Level Trigger, which should process up to 2000 events per second in proton-proton collisions and up to 300 central events per second in heavy-ion collisions, corresponding to an inp ut data stream of 30 GB/s. In order to fulfill the time requirements, a fast on-line tracker has been developed. [...]
2011
- Published in : IEEE Trans. Nucl. Sci. 58 (2011) 1845-1851
In : 17th IEEE NPSS Real Time Conference, Lisbon, Portugal, 24 - 28 May 2010, pp.1845-1851
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