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CERN Document Server Sök i 2,051 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 0.49 sekunder. 
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Metal additive manufacturing for particle accelerator applications / Romano, Tobia (Milan, Polytech. ; Riga Tech. U.) ; Pikurs, Guntis (CERN ; Riga Tech. U.) ; Ratkus, Andris (Riga Tech. U.) ; Torims, Toms (CERN ; Riga Tech. U.) ; Delerue, Nicolas (IJCLab, Orsay) ; Vretenar, Maurizio (CERN) ; Stepien, Lukas (Fraunhofer Inst., Dresden) ; López, Elena (Fraunhofer Inst., Dresden) ; Vedani, Maurizio (Milan, Polytech.)
Metal additive manufacturing technologies are rapidly becoming an integral part of the advanced technological portfolio for the most demanding industrial applications. These processes are capable of fabricating three-dimensional components with near-net shape quality by depositing the constituent materials in a layer-by-layer fashion. [...]
2024 - 38 p. - Published in : Phys. Rev. Accel. Beams 27 (2024) 054801 Fulltext: PDF;
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First Proof-of-Concept Prototype of an Additive Manufactured Radio Frequency Quadrupole / Torims, Toms (Riga Tech. U. ; CERN) ; Pikurs, Guntis (Riga Tech. U. ; CERN) ; Gruber, Samira (Fraunhofer Inst., Dresden) ; Vretenar, Maurizio (CERN) ; Ratkus, Andris (Riga Tech. U. ; CERN) ; Vedani, Maurizio (U. Milan (main)) ; López, Elena (Fraunhofer Inst., Dresden) ; Brückner, Frank (Fraunhofer Inst., Dresden ; Lulea U. Technol. (main))
Continuous developments in Additive Manufacturing (AM) technologies are opening opportunities in novel machining, and improving design alternatives for modern particle accelerator components. One of the most critical, complex, and delicate accelerator elements to manufacture and assemble is the Radio Frequency Quadrupole (RFQ) linear accelerator, used as an injector for all large modern proton and ion accelerator systems. [...]
arXiv:2110.05233; CERN-ACC-NOTE-2021-024.- 2021-11-29 - 12 p. - Published in : Instruments 5 (2021) 35 Fulltext: 2110.05233 - PDF; document - PDF;
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Perspectives and recent achievements on additive manufacturing technologies for accelerators / Torims, Toms (Riga Tech. U.) ; Romano, Tobia (Milan, Polytech.) ; Pikurs, Guntis (Riga Tech. U.) ; Gruber, Samira (Fraunhofer Inst., Dresden) ; Delerue, Nicolas (IJCLab, Orsay) ; Lopez, Elena (Fraunhofer Inst., Dresden) ; Vretenar, Maurizio (CERN) ; Ratkus, Andris (Riga Tech. U.) ; Vedani, Maurizio (Milan, Polytech.) ; Marquardt, Drew (Fraunhofer Inst., Dresden) et al.
This paper reports the exploratory studies on advanced accelerator technologies performed within the I.FAST (Innovation Fostering in Accelerator Science and Technology) EU project, and in particular the key results of the additive manufacturing Task 10.2 – “Additive Manufacturing – applications and potential developments” and Task 10.3 – “Repair of damaged accelerator components by AM technologies”. This includes results of two surveys targeted to the accelerator community: a) on current additive manufacturing applications in accelerators and expected new developments, b) on current additive manufacturing repair technologies for accelerator and list of possible applications. [...]
2024 - 3 p. - Published in : JACoW IPAC 2024 (2024) THPS62 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPS62
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Spatio-Temporal Anomaly Detection with Graph Networks for Data Quality Monitoring of the Hadron Calorimeter / CMS HCAL Collaboration
The compact muon solenoid (CMS) experiment is a general-purpose detector for high-energy collision at the large hadron collider (LHC) at CERN. It employs an online data quality monitoring (DQM) system to promptly spot and diagnose particle data acquisition problems to avoid data quality loss. [...]
arXiv:2311.04190.- 2023-12-07 - 23 p. - Published in : Sensors 23 (2023) 9679 Fulltext: 2311.04190 - PDF; c66ca9f581f662fe9da5f88050b0790d - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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(32)
Positronium Laser Cooling via the <math display="inline"><mrow><msup><mrow><mn>1</mn></mrow><mrow><mn>3</mn></mrow></msup><mi>S</mi><mtext>-</mtext><msup><mrow><mn>2</mn></mrow><mrow><mn>3</mn></mrow></msup><mi>P</mi></mrow></math> Transition with a Broadband Laser Pulse / AEḡIS Collaboration
We report on laser cooling of a large fraction of positronium (Ps) in free-flight by strongly saturating the $1^3S$-$2^3P$ transition with a broadband, long-pulsed 243 nm alexandrite laser. The ground state Ps cloud is produced in a magnetic and electric field-free environment. [...]
arXiv:2310.08760.- 2024-02-22 - 7 p. - Published in : Phys. Rev. Lett. 132 (2024) 083402 Fulltext: 2310.08760 - PDF; Publication - PDF; External links: Physics Synopsis; Interactions.org article
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Evaluation of green laser source additive manufacturing technology for accelerator applications with ultra-high vacuum requirements / Ratkus, Andris (Riga Tech. U.) ; Lacis, Viesturs (Riga Tech. U.) ; Pikurs, Guntis (Riga Tech. U.) ; Torims, Toms (Riga Tech. U.) ; Garion, Cedric (CERN) ; Kos, Hendrik (CERN) ; Rorison, Samuel (CERN) ; Gruber, Samira (Fraunhofer Inst., Dresden) ; Lopez, Elena (Fraunhofer Inst., Dresden) ; Patil, Abhijeet (Fraunhofer Inst., Dresden) et al.
Additive Manufacturing (AM) offers different benefits such as efficient material usage, reduced production time and design freedom. Moreover, with continuous technological developments, AM expands in versatility and different material usage capabilities. [...]
2023 - Published in : JACoW IPAC 2023 (2023) THPM031 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPM031
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FIRST PROOF-OF-CONCEPT PROTOTYPE OF AN ADDITIVE-MANUFACTURED RADIO FREQUENCY QUADRUPOLE / Torims, Toms (Riga Technical University (LV)) ; Ratkus, Andris (Riga Technical University (LV)) ; Pikurs, Guntis (Riga Technical University (LV)) ; Gruber, S (Fraunhofer Institute, Dresden, Germany) ; Vretenar, Maurizio (CERN) ; Vedani, Maurizio ; Lopez, Elena (Fraunhofer Insitute, Dresden, Germany) ; Bruckner, F (Fraunhofer Institute. Dresden, Germany and Lulea University, Sweden)
Continuous developments in Additive Manufacturing (AM) technologies are opening opportunities in novel machining, and improving design alternatives for modern particle accelerator components [...]
CERN-ACC-NOTE-2021-0024. - 2021. - 12 p.
Full text
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The CMS Statistical Analysis and Combination Tool: Combine / CMS Collaboration
This paper describes the Combine software package used for statistical analyses by the CMS Collaboration. The package, originally designed to perform searches for a Higgs boson and the combined analysis of those searches, has evolved to become the statistical analysis tool presently used in the majority of measurements and searches performed by the CMS Collaboration. [...]
arXiv:2404.06614; CMS-CAT-23-001; CERN-EP-2024-078; CMS-CAT-23-001-003.- Geneva : CERN, 2024-11-08 - 69 p. - Published in : Comput. Softw. Big Sci. 8 (2024) 19 Fulltext: PDF; Fulltext from Publisher: s41781-024-00121-4 - PDF; document - PDF; External links: Additional information for the analysis; CMS AuthorList
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Portable Acceleration of CMS Computing Workflows with Coprocessors as a Service / CMS Collaboration
Computing demands for large scientific experiments, such as the CMS experiment at the CERN LHC, will increase dramatically in the next decades. To complement the future performance increases of software running on central processing units (CPUs), explorations of coprocessor usage in data processing hold great potential and interest. [...]
arXiv:2402.15366; CMS-MLG-23-001; CERN-EP-2023-303; CMS-MLG-23-001-003.- Geneva : CERN, 2024-09-04 - 55 p. - Published in : Comput. Softw. Big Sci. 8 (2024) 17 Fulltext: PDF; Fulltext from Publisher: PDF; External links: Additional information for the analysis; CMS AuthorList
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Search for Higgs boson pair production in the $ \textrm{b}\overline{\textrm{b}}{\textrm{W}}^{+}{\textrm{W}}^{-} $ decay mode in proton-proton collisions at $ \sqrt{s} $ = 13 TeV / CMS Collaboration
A search for Higgs boson pair (HH) production with one Higgs boson decaying to two bottom quarks and the other to two W bosons are presented. The search is done using proton-proton collisions data at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 138 fb$ ^{-1} $ recorded by the CMS detector at the LHC from 2016 to 2018. [...]
arXiv:2403.09430; CMS-HIG-21-005; CERN-EP-2024-043; CMS-HIG-21-005-003.- Geneva : CERN, 2024-07-31 - 57 p. - Published in : JHEP 2407 (2024) 293 Fulltext: 2403.09430 - PDF; CMS-HIG-21-005-arXiv - PDF; Fulltext from Publisher: PDF; External links: Additional information for the analysis; CMS AuthorList
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