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2024-08-23
16:08
Detailed study of the decay of $^{21}$Mg / IS507 Collaboration
Beta-delayed proton and gamma emission in the decay of $^{21}$Mg has been measured at ISOLDE, CERN with the ISOLDE Decay Station (IDS) set-up. The existing decay scheme is updated, in particular what concerns proton transitions to excited states in $^{20}$Ne. [...]
- Published in : The European Physical Journal A60 (2024) 153 Fulltext: PDF;

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2024-08-22
06:22
Investigating the effect of rolling deformation on the electro-mechanical limits of Nb$_{3}$Sn wires produced by RRP$^{®}$ and PIT technologies / Bagni, T (U. Geneva (main) ; Uppsala U.) ; Calzolaio, C (PSI, Villigen) ; Bovone, G (U. Geneva (main)) ; Ferradas-Troitino, J (CERN) ; Barth, C (CERN) ; Ballarino, A (CERN) ; Senatore, C (U. Geneva (main))
Future high-field magnets for particle accelerators hinge on the crucial development of advanced Nb$_{3}$Sn wires engineered to withstand the large stresses generated during magnet assembly and operation. The superconducting properties of Nb$_{3}$Sn enable the design of compact accelerator-quality magnets above 10 T, but at the same time the brittleness and strain sensitivity of the material impose careful consideration of the mechanical limits. [...]
2024 - 16 p. - Published in : Supercond. Sci. Technol. 37 (2024) 095013 Fulltext: PDF;

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2024-08-22
06:22
Performance Engineering for Graduate Students: a View from Amsterdam / Varbanescu, Ana-Lucia (Twente U., Enschede ; Amsterdam U.) ; Swatman, Stephen Nicholas (Amsterdam U. ; CERN) ; Pathania, Anuj (Amsterdam U.)
HPC relies on experts to design, implement, and tune (computational science) applications that can efficiently use current (super)computing systems. As such, we strongly believe we must educate our students to ensure their ability to drive these activities, together with the domain experts. [...]
2023 - 9 p. - Published in : 10.1145/3624062.3624102 Fulltext: PDF;
In : International Conference on High Performance Computing, Network, Storage, and Analysis (SC '23), Denver, CO, United States, 12 - 17 Nov 2023, pp.357-365

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2024-08-22
06:22
Online and offline Radiation-Induced Attenuation measurements on FD-7 radiophotoluminescence dosimeters irradiated at high X-ray doses / Hasan, A (Lab. Hubert Curien, St. Etienne) ; Aguiar, Y (Lab. Hubert Curien, St. Etienne ; CERN) ; García Alía, R (CERN) ; Campanella, C (Lab. Hubert Curien, St. Etienne) ; Morana, A (Lab. Hubert Curien, St. Etienne) ; Alem, A K (Lab. Hubert Curien, St. Etienne) ; Girard, S (Lab. Hubert Curien, St. Etienne ; IUF, Paris) ; Mandal, A Raj (Lab. Hubert Curien, St. Etienne) ; Ferrari, M (Lab. Hubert Curien, St. Etienne)
Radiophotoluminescence (RPL) FD-7 glass dosimeters find applications in low to high dose radiation environments. This work presents an experimental characterization of RPL glass dosimeter, irradiated with 100 kV X-ray tubes at room temperature at doses ranging from 1.3 kGy to 0.47 MGy, much higher of their common use range. [...]
2024 - 9 p. - Published in : Radiat. Meas. 177 (2024) 107246 Fulltext: PDF;

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2024-08-22
06:22
Design and perspectives of the CMS Level-1 trigger Data Scouting system / CMS Collaboration
The CMS detector will undergo a significant upgrade to cope with the HL-LHC instantaneous luminosity and average number of proton–proton collisions per bunch crossing (BX). The Phase-2 CMS detector will be equipped with a new Level-1 (L1) trigger system that will have access to an unprecedented level of information. [...]
2024 - 3 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1067 (2024) 169719 Fulltext: PDF;
In : 16th Pisa Meeting on Advanced Detectors, La Biodola, Isola D'elba, Italy, 26 May - 1 Jun 2024, pp.169719

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2024-08-22
06:22
Machine learning discovery of cost-efficient dry cooler designs for concentrated solar power plants / Narasiah, Hansley (University Coll. London) ; Kitouni, Ouail (MIT) ; Scorsoglio, Andrea (Arizona U.) ; Sturdza, Bernd K (Oxford U.) ; Hatcher, Shawn (Mississippi State U.) ; Katcher, Kelsi (Texas U., San Antonio) ; Khalesi, Javad (North Carolina U., Charlotte) ; Garcia, Dolores (CERN) ; Kusner, Matt J (University Coll. London)
Concentrated solar power (CSP) is one of the few sustainable energy technologies that offers day-to-night energy storage. Recent development of the supercritical carbon dioxide (sCO2) Brayton cycle has made CSP a potentially cost-competitive energy source. [...]
2024 - 11 p. - Published in : Sci. Rep. 14 (2024) 19086 Fulltext: PDF;

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2024-08-22
06:22
Distance measurement error sources in Fourier-based frequency sweeping interferometry using a gas cell for laser frequency sweep speed determination / Sosin, M (CERN ; U. Nottingham) ; Gonzalez Cobas, J D (CERN) ; Isa, M (U. Nottingham) ; Leach, R K (U. Nottingham) ; Mainaud Durand, H (CERN)
Fourier-based frequency sweeping interferometry (FSI) is an interferometric technique, which offers absolute distance measurement based on the detection of interference beat frequencies of reflected signals. Through the multiple beat frequencies detected, Fourier-based FSI performs robust and simultaneous measurements of absolute distances to multiple targets. [...]
2023 - 18 p. - Published in : Proc. SPIE 12684 (2023) 68-85
In : SPIE Optical Engineering + Applications, San Diego, United States, 20 - 26 Aug 2023, pp.68-85

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2024-08-22
06:22
Carroll-invariant propagating fields / Ecker, Florian (Vienna, Tech. U.) ; Grumiller, Daniel (Vienna, Tech. U.) ; Henneaux, Marc (College de France ; U. Brussels (main) ; Intl. Solvay Inst., Brussels) ; Salgado-Rebolledo, Patricio (Vienna, Tech. U.)
We construct Carroll-invariant theories with fields propagating outside the Carroll light cone, i.e., at a speed strictly greater than zero (“Carroll swiftons”). We first consider models in flat Carroll spacetime in general dimensions, where we present scalar and vector Carroll swifton field theories. [...]
2024 - 9 p. - Published in : Phys. Rev. D 110 (2024) L041901 Fulltext: PDF;

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2024-08-22
06:22
Revisiting Lindemann’s criterion from a minimal viscosity perspective / Tello, Pablo G (CERN) ; Succi, Sauro (IAC, Rome ; Harvard U.)
A revisiting of the Lindemann criterion under the recently established minimal viscosity formulation is proposed which uncovers intriguing insights into the melting process. The approach suggests that melting involves competition between the electron rest energy and the thermal one caused by temperature increase when considering a defect-free crystal structure. [...]
2024 - 7 p. - Published in : Int. J. Mod. Phys. C 35 (2024) 2450109

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2024-08-22
06:22
Single-Event Effect Responses of CMOS Integrated Planar Multiturn Inductors in LC-Tank Oscillators Under Heavy-Ion Microbeam Irradiation / Adom-Bamfi, Gideon (Leuven U.) ; Biereigel, Stefan (CERN) ; Leroux, Paul (Leuven U.) ; Prinzie, Jeffrey (Leuven U.)
This article presents detailed measurements of a novel radiation effect caused by the sensitivity of on-chip spiral inductors to ionizing particles, leading to single-event frequency transients (SEFTs) in LC-tank oscillators. Quantitative experimental results from heavy-ion microbeam irradiation of two-turn and four-turn inductor samples are presented. [...]
2024 - 11 p. - Published in : IEEE Trans. Nucl. Sci. 71 (2024) 1380-1390

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