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CERN Document Server Намерени са 2,010 записа  1 - 10следващкрай  отиване на запис: Търсенето отне 0.29 секунди. 
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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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Pulsed DC High Field Measurements of Irradiated and Non-Irradiated Electrodes of Different Materials / Peacock, Ruth (Lancaster U. (main) ; CERN) ; Bellodi, Giulia (CERN) ; Burt, Graeme (Lancaster U. (main)) ; Calatroni, Sergio (CERN) ; Da Palma Serafim, Catarina (CERN) ; Grudiev, Alexej (CERN) ; Lombardi, Alessandra (CERN) ; Perez Fontenla, Ana Teresa (CERN) ; Ramberger, Suitbert (CERN) ; Sargsyan, Edgar (CERN) et al.
Beam loss occurs in Radio Frequency Quadrupoles (RFQ), and has been observed in the H⁻ linear accelerator Linac4 (L4) at CERN. To determine if beam loss can induce breakdowns, and to compare the robustness of different materials, tests have been done using pulsed high-voltage DC systems. [...]
2022 - 4 p. - Published in : JACoW LINAC 2022 (2022) 441-444 Fulltext: PDF;
In : 31st Linear Accelerator Conference (LINAC22), Liverpool, UK, 28 Aug - 2 Sep 2022, pp.441-444
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Recent results with radiation-tolerant TowerJazz 180 nm MALTA sensors / LeBlanc, Matt (CERN) ; Allport, Phil (Birmingham U.) ; Asensi, Igancio (CERN) ; Berlea, Dumitru-Vlad (DESY, Zeuthen) ; Bortoletto, Daniela (Oxford U.) ; Buttar, Craig (Glasgow U.) ; Dachs, Florian (CERN) ; Dao, Valerio (CERN) ; Denizli, Haluk (Abant Izzet Baysal U.) ; Dobrijevic, Dominik (CERN ; Zagreb U.) et al.
To achieve the physics goals of future colliders, it is necessary to develop novel, radiation-hard silicon sensors for their tracking detectors. We target the replacement of hybrid pixel detectors with Depleted Monolithic Active Pixel Sensors (DMAPS) that are radiation-hard, monolithic CMOS sensors. [...]
arXiv:2209.04459.- 2022-10-11 - 4 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1041 (2022) 167390 Fulltext: PDF;
In : Vienna Conference on Instrumentation (VCI 2022), Online, Austria, 21 - 25 Feb 2022, pp.167390
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Accord entre l'Organisation Européenne pour la Recherche Nucléaire, le Conseil Fédéral Suisse et le Gouvernement de la République Française relatif à la protection contre les rayonnements ionisants et à la sûreté des installations de l'Organisation Européenne pour la Recherche Nucléaire
2010 Fulltext: PDF;
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Microscopy Investigation on Different Materials After Pulsed High Field Conditioning and Low Energy H$^{-}$ Irradiation / Da Palma Serafim, Catarina (CERN ; U. Helsinki (main)) ; Bellodi, Giulia (CERN) ; Calatroni, Sergio (CERN) ; Djurabekova, Flyura (U. Helsinki (main)) ; Grudiev, Alexej (CERN) ; Lombardi, Alessandra (CERN) ; Peacock, Ruth (CERN) ; Perez Fontenla, Ana Teresa (CERN) ; Ramberger, Suitbert (CERN) ; Sargsyan, Edgar (CERN) et al.
During operation the RFQ (Radio-Frequency-Quadrupole) of the LINAC4 at CERN is exposed to high electric fields which can lead to vacuum breakdown. It is also subject to beam loss that can cause surface modification, including blistering, which can result in reduced electric field handling and an increased breakdown rate. [...]
2022 - 4 p. - Published in : JACoW LINAC 2022 (2022) 422-425 Fulltext: PDF;
In : 31st Linear Accelerator Conference (LINAC22), Liverpool, UK, 28 Aug - 2 Sep 2022, pp.422-425
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L'organisation européenne pour la recherche nucléaire (CERN): un succès politique et scientifique / Pestre, Dominique (CERN)
1984 - Published in : Vingtième Siècle. Revue d'histoire: 4 (1984) , no. 4, pp. 65-76 External link: Persee server
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Book cover Statut juridique de l'Organisation européenne pour la Recherche nucléaire en Suisse et en France : CERN statut juridique
Geneva : CERN, 1973.

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Comparative study of H accumulation in differently oriented grains of Cu / Lopez-Cazalilla, A. (Helsinki U.) ; Serafim, Catarina (Helsinki U. ; CERN) ; Djurabekova, F. (Helsinki U.) ; Perez-Fontenla, Ana Teresa (CERN) ; Calatroni, Sergio (CERN) ; Wuensch, Walter (CERN)
When metal surfaces are exposed to hydrogen ion irradiation, the light ions are expected to penetrate deep into the material and dissolve in the matrix. [...]
arXiv:2209.14068. - 25 p.
Fulltext
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Design and behaviour of the Large Hadron Collider external beam dumps capable of receiving 539 MJ/dump / Maestre, J. (CERN ; Granada U.) ; Torregrosa, C. (CERN ; Granada U.) ; Kershaw, K. (CERN) ; Bracco, C. (CERN) ; Coiffet, T. (CERN) ; Ferrari, M. (CERN) ; Ximenes, R. Franqueira (CERN) ; Gilardoni, S. (CERN) ; Grenier, D. (CERN) ; Lechner, A. (CERN) et al.
Two 6-t beam dumps, made of a graphite core encapsulated in a stainless steel vessel, are used to absorb the energy of the two Large Hadron Collider (LHC) intense proton beams during operation of the accelerator. Operational issues started to appear in 2015 during LHC Run 2 (2014-2018) as a consequence of the progressive increase of the LHC beam kinetic energy, necessitating technical interventions in the highly radioactive areas around the dumps. [...]
arXiv:2110.08783.- 2021-11-16 - 36 p. - Published in : JINST 16 (2021) P11019 Fulltext: 2110.08783 - PDF; document - PDF; Fulltext from publisher: PDF;
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Effect of dc voltage pulsing on high-vacuum electrical breakdowns near Cu surfaces / Saressalo, Anton (Helsinki Inst. of Phys.) ; Profatilova, Iaroslava (ECFA) ; Millar, William L. (CERN ; Cockcroft Inst. Accel. Sci. Tech.) ; Kyritsakis, Andreas (Helsinki Inst. of Phys.) ; Calatroni, Sergio (CERN) ; Wuensch, Walter (CERN) ; Djurabekova, Flyura (Helsinki Inst. of Phys.)
Vacuum electrical breakdowns, also known as vacuum arcs, are a limiting factor in many devices that are based on application of high electric fields near their component surfaces. Understanding of processes that lead to breakdown events may help mitigating their appearance and suggest ways for improving operational efficiency of power-consuming devices. [...]
arXiv:2008.02130.- 2020-11-09 - 14 p. - Published in : Phys. Rev. Accel. Beams 23 (2020) 113101 Fulltext: PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF;
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