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CERN Document Server Намерени са 26 записа  1 - 10следващкрай  отиване на запис: Търсенето отне 0.62 секунди. 
1.
Study of selected mild steels for application in vacuum systems of future gravitational wave detectors / Scarcia, Carlo (CERN ; RWTH Aachen U.) ; Bregliozzi, Giuseppe (CERN) ; Chiggiato, Paolo (CERN) ; Michet, Alice Ingrid (CERN) ; Perez Fontenla, Ana Teresa (CERN) ; Rimoldi, Martino (CERN) ; Taborelli, Mauro (CERN) ; Wevers, Ivo (CERN)
Next-generation gravitational wave detectors (GWDs) like the Cosmic Explorer and Einstein Telescope require extensive vacuum tubing, necessitating cost-effective materials. This study explores the viability of mild steel as an alternative to austenitic stainless steel for UHV beampipes, focusing on outgassing rates and surface chemistry after low-temperature bakeouts. [...]
arXiv:2406.07123.- 2024-09-01 - 17 p. - Published in : J. Vac. Sci. Technol. B Microelectron. Nanometer Struct.: 42 (2024) , no. 5, pp. 054202 Fulltext: 2406.07123 - PDF; document - PDF;
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2.
Overview of beam intensity issues and mitigations in the CERN-SPS fast wire scanners / Veness, Raymond (CERN) ; Guerrero, Ana (CERN) ; Perez Fontenla, Ana Teresa (CERN) ; Harrison, Anthony (CERN) ; Salvant, Benoit (CERN) ; Zannini, Carlo (CERN) ; Antuono, Chiara (CERN) ; Vollinger, Christine (CERN) ; de la Fuente, Elena (CERN) ; Carra, Federico (CERN) et al.
A new design of fast wire scanner was installed in the CERN injector complex as part of the upgrades linked to the High-Luminosity LHC Project. Initial operations with these beams were good, but during the planned intensity ramp-up one early 2023, all four SPS scanners failed at the same time. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) WEPG26 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPG26
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3.
Development and characterisation of advanced coatings for high energy physics applications / Perez Fontenla, Ana Teresa (CERN) ; Pereira Carlos, Carlota (CERN) ; Leith, Stewart (CERN) ; Moros, Alice (CERN) ; Pfeiffer, Stephan (CERN) ; Rodriguez-Castro, Enrique (CERN) ; Rosaz, Guillaume (CERN)
The Future Circular Collider (FCC) study develops the technologies for next generation high performance particle colliders and accelerating structures. It places high requirements on the performance of Superconducting Radio Frequency (SRF) cavities used to accelerate the particle beam. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) WEPA150 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPA150
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4.
Analysis of the Leakage Events in the Thermal Shield Cooling Pipes of the ITER Magnet System / Sgobba, Stefano (CERN) ; Santillana, Ignacio Aviles (CERN) ; Celuch, Michal (CERN) ; Crouvizier, Mickaël (CERN) ; Perez Fontenla, Ana Teresa (CERN) ; Castro, Enrique Rodriguez (CERN) ; Mitchell, Neil (Euratom, St. Paul Lez Durance) ; Koizumi, Norikiyo (Euratom, St. Paul Lez Durance) ; Pearce, Robert (Euratom, St. Paul Lez Durance) ; Worth, Liam (Euratom, St. Paul Lez Durance) et al.
The ITER Thermal Shields (TS) consist of actively cooled stainless steel panels. Their role is to minimise the radiation heat load from warm components, such as the Vacuum Vessel (VV) and the cryostat, hence contributing to insulating the magnet system operating at 4.5 K. [...]
2024 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4203405
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5.
Investigation on different materials after pulsed high field conditioning and low-energy H- irradiation / Serafim, Catarina (CERN ; Helsinki U.) ; Peacock, R. (CERN) ; Calatroni, S. (CERN) ; Djurabekova, F. (Helsinki U.) ; Perez Fontenla, A.T. (CERN) ; Wuensch, W. (CERN) ; Sgobba, S. (CERN) ; Grudiev, A. (CERN) ; Lombardi, A. (CERN) ; Sargsyan, E. (CERN) et al.
During operation, the radio-frequency quadrupole (RFQ) of the LINAC4 at CERN is exposed to high electric fields, which can lead to vacuum breakdown. It is also subject to beam loss, which can cause surface modification, including blistering, which can result in reduced electric field holding and an increased breakdown rate. [...]
arXiv:2410.00084.- 2024-02-21 - 8 p. - Published in : Front. Phys. 12 (2024) 1308455 Fulltext: fphy-12-1308455 (3) - PDF; 2410.00084 - PDF;
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6.
RF characterisation of laser treated copper surfaces for the mitigation of electron cloud in accelerators / Krkotic, Patrick (CERN) ; Calatroni, Sergio (CERN) ; Abdolvand, Amin (Dundee U.) ; Perez Fontenla, Ana Teresa (CERN) ; Neupert, Holger (CERN) ; Himmerlich, Marcel (CERN) ; Wackerow, Stefan (Dundee U.)
In accelerator beam chambers and RF waveguides, electron cloud and multipacting can be mitigated effectively by reducing the secondary electron yield (SEY). In recent years, it has been established that laser surface structuring is a very efficient method to create a copper surface with SEY close to or even below unity. [...]
2023 - 4 p. - Published in : JACoW IPAC2023 (2023) THPA137 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPA137
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7.
Design development and technological R&D; for niobium-cladded beam production targets / Griesemer, T (CERN) ; Gallifa Terricabras, A (CERN) ; Perez Fontenla, A T (CERN) ; Mazzola, G (CERN) ; Arnau-Izquierdo, G (CERN) ; Aviles Santillana, I (CERN) ; Esposito, Luigi Salvatore (CERN) ; Calviani, M (CERN) ; Cusworth, M (Sheffield U.) ; Mena Andrade, R (CERN) et al.
High power particle producing target components in research facilities often consist of refractory metals. They experience challenging thermo-mechanical conditions and therefore require dedicated cooling systems. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) THPM017 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPM017
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8.
Beam-Impact Validation of HL-LHC Collimator Materials: the "MultiMat-2" Experiment / Carra, F (CERN) ; Accettura, C (CERN) ; Bertarelli, A (CERN) ; Berthomé, E (CERN) ; Bruce, R (CERN) ; Charitonidis, N (CERN) ; Dalemir, M (CERN) ; Farina, E (CERN) ; Guardia-Valenzuela, J (CERN) ; Guinchard, M (CERN) et al.
In 2017, a proton-impact test HL-LHC collimator materials was carried out in the HiRadMat facility at CERN. The experiment, called “MultiMat”, enabled the testing of bulk and coated materials developed at CERN for different beam collimation functionalities. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) WEPM109 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPM109
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9.
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Materials and their production processing for ET's beampipes / Perez Fontenla, Ana Teresa (speaker) (CERN)
2023 - 1585. Workshops; Beampipes for Gravitational Wave Telescopes 2023 External links: Talk details; Event details In : Beampipes for Gravitational Wave Telescopes 2023
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10.
Punching of arbitrary face prismatic loops from hydrogen nanobubbles in copper / Lopez-Cazalilla, A (Helsinki U.) ; Djurabekova, F (Helsinki U.) ; Granberg, F (Helsinki U.) ; Mizohata, Kenichiro (Helsinki U.) ; Perez-Fontenla, Ana Teresa (CERN) ; Calatroni, Sergio (CERN) ; Wuensch, Walter (CERN)
When a metal surface is exposed to prolonged irradiation with energetic H−, the ions are expected to penetrate into bulk and dissolve in the matrix. However, the irradiated surfaces exhibit dramatic morphological changes in the form of “blisters” covering the surface exposed to irradiation. [...]
2022 - 12 p. - Published in : Acta Mater. 225 (2022) 117554 Fulltext: PDF;
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CERN Document Server : Намерени са 26 записа   1 - 10следващкрай  отиване на запис:
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