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2025-05-08
06:04
Experimental setup of the 239Pu neutron capture and fission cross-section measurements at n_TOF, CERN / n_TOF Collaboration
The experimental setup of the new measurement of 239Pu fission and capture cross-section in the n_TOF time-of-flight facility at CERN is presented. The measurement aims to address the needs and demands of nuclear data users. [...]
2024 - 9 p. - Published in : EPJ Web Conf. 294 (2024) 01003 Fulltext: PDF;
In : 6th International Workshop On Nuclear Data Evaluation for Reactor applications (WONDER 2023), Aix-en-Provence, 5 Jun - 9 Jun 2023, pp.01003

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2025-05-08
06:04
Direct radiative capture calculations on 56Fe / Gkatis, Georgios (CEA Cadarache ; Natl. Tech. U., Athens) ; Diakaki, Maria (Natl. Tech. U., Athens) ; Mengoni, Alberto (CERN ; INFN, Bologna ; ENEA, Rome) ; Noguere, Gilles (CEA Cadarache)
The theoretical description of the 56Fe neutron induced reaction cross sections is the subject of many studies within the nuclear data community. Based on these studies, issues were discovered in the evaluated cross sections of the 56Fe(n,γ) reaction. [...]
2024 - 7 p. - Published in : EPJ Web Conf. 294 (2024) 04002 Fulltext: PDF;
In : 6th International Workshop On Nuclear Data Evaluation for Reactor applications (WONDER 2023), Aix-en-Provence, 5 Jun - 9 Jun 2023, pp.04002

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2025-05-08
06:04
Description and outlook of the 50,53Cr(n,γ) cross section measurement at n_TOF and HiSPANoS / n_TOF Collaboration
Chromium is a very relevant element regarding criticality safety in nuclear reactors because of its presence in stainless steel, an important structural material. Currently, there are serious discrepancies between the different evaluations regarding the neutron capture cross sections of 50Cr and 53Cr, most probably related to the difficulty of reducing and then estimating the very large neutron scattering effects on the shape of the resonances. [...]
2024 - 7 p. - Published in : EPJ Web Conf. 294 (2024) 01004 Fulltext: PDF;
In : 6th International Workshop On Nuclear Data Evaluation for Reactor applications (WONDER 2023), Aix-en-Provence, 5 Jun - 9 Jun 2023, pp.01004

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2025-05-08
06:04
Impact of high-intensity LHC beam operation on warm vacuum modules / Antuono, C (CERN) ; Krkotić, P (CERN) ; de la Fuente Garcia, E (CERN) ; Zannini, C (CERN) ; Calatroni, S (CERN) ; Baglin, V (CERN) ; Bregliozzi, G (CERN) ; Chiggiato, P (CERN) ; Galloro, A (CERN) ; Giacomel, L (CERN) et al.
During the third run of the Large Hadron Collider in 2023, which had the highest intensity bunch population compared to previous runs, a beam dump incident with operational delays occurred due to increased losses attributed to pressure spikes within a warm vacuum sector. Subsequent inspections revealed localized annealing and plasticization of the tension spring in the sliding contact radio frequency finger of a 212 mm diameter vacuum module, alongside traces of vapor deposition on the various module components with the stainless steel spring material. [...]
2025 - 12 p. - Published in : Phys. Rev. Accel. Beams 28 (2025) 041001 Fulltext: PDF;

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2025-05-08
06:04
Phase stability compliancy testing of a White Rabbit based solution for the LHC RF and Timing Distribution Backbone upgrade / Hazell, P (CERN) ; Baron, S (CERN) ; Gousiou, E (CERN) ; Hagmann, G (CERN) ; Gill, J (Unlisted) ; Lipinski, M (CERN) ; Genoud, Q (CERN) ; Gingold, T (CERN) ; Wlostowski, T (CERN)
The LHC RF and Timing Distribution Backbone is being upgraded for the HL-LHC. A White Rabbit technology solution for the generation and the distribution of the RF, similar to the system currently employed in SPS, is being considered. [...]
2024 - 7 p. - Published in : JINST 19 (2024) C12019 Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics 2024, Glasgow, United Kingdom, 30 Sep - 4 Oct 2024, pp.C12019

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2025-05-08
04:34
Real-time antiproton annihilation vertexing with submicrometer resolution / AEḡIS Collaboration
The primary goal of the AEgIS experiment is to precisely measure the free fall of antihydrogen within Earth's gravitational field. To this end, a cold ~50K antihydrogen beam has to pass through two grids forming a moiré deflectometer before annihilating onto a position-sensitive detector, which shall determine the vertical position of the annihilation vertex relative to the grids with micrometric accuracy. [...]
arXiv:2406.16044.- 2025-04-04 - 10 p. - Published in : Sci. Adv. 11 (2025) ads1176 Fulltext: 2406.16044 - PDF; document - PDF;

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2025-05-01
04:05
Search for very-short-baseline oscillations of reactor antineutrinos with the SoLid detector / SoLid Collaboration
In this letter we report the first scientific result based on antineutrinos emitted from the BR2 reactor at SCK CEN. The SoLid experiment uses a novel type of highly granular detector whose basic detection unit combines two scintillators, PVT and 6LiF:ZnS(Ag), to measure antineutrinos via their inverse-beta-decay products. [...]
arXiv:2407.14382; FERMILAB-PUB-24-0747-V.- 2025-04-01 - 8 p. - Published in : Phys. Rev. D 111 (2025) 072005 Fulltext: 3dba90809895d4a4072a73406d943519 - PDF; 2407.14382 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server

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2025-04-30
05:09
Daily modulations and broadband strategy in axion searches: An application with the CAST-CAPP detector / Caspers, F. (ESI, Archamps ; CERN) ; Adair, C.M. (British Columbia U.) ; Altenmüller, K. (Zaragoza U.) ; Anastassopoulos, V. (Patras U.) ; Cuendis, S. Arguedas (CERN) ; Baier, J. (Freiburg U.) ; Barth, K. (CERN) ; Belov, A. (Unlisted) ; Bozicevic, D. (Rijeka U.) ; Bräuninger, H. (Garching, Max Planck Inst., MPE) et al.
It has been previously advocated that the presence of the daily and annual modulations of the axion flux on the Earth's surface may dramatically change the strategy of the axion searches. The arguments were based on the so-called Axion Quark Nugget (AQN) dark matter model which was originally put forward to explain the similarity of the dark and visible cosmological matter densities Ωdark∼Ωvisible. [...]
arXiv:2405.10972.- 2025-04-15 - 18 p. - Published in : Phys. Rev. D 111 (2025) 082009 Fulltext: PDF;

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2025-04-30
05:07
Wakefield regeneration in a resonantly driven plasma accelerator / Farmer, John P. (Munich, Max Planck Inst.) ; Della Porta, Giovanni Zevi (CERN)
Plasma wakefields offer high acceleration gradients, orders of magnitude larger than conventional RF accelerators. However, the achievable luminosity remains relatively low, typically limited by repetition rate and the charge accelerated per shot. [...]
arXiv:2404.14175.- 2025-03-05 - 7 p. - Published in : Phys. Rev. Res. 7 (2025) L012055 Fulltext: PDF;

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2025-04-30
05:05
Energy shift with coupling (ESC): a new quench protection method / Ravaioli, Emmanuele (CERN) ; Verweij, Arjan (CERN) ; Wozniak, Mariusz (CERN)
Quench protection of full-size high-field accelerator magnets poses significant challenges. Maintaining the hot-spot temperature and peak voltage-to-ground within acceptable limits requires a protection system that quickly transitions most of the coil turns to the normal state. [...]
arXiv:2409.05446.- 2025-02-11 - 13 p. - Published in : Supercond. Sci. Technol. 38 (2025) 035009 Fulltext: 2409.05446 - PDF; document - PDF;

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