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Surface Treatments & Coatings
/ Taborelli, Mauro (speaker) (CERN)
2024 - 2773.
CERN Accelerator School; Mechanical & Materials Engineering for Particle Accelerators and Detectors, 2-15 June 2024, Sint-Michielsgestel, Netherlands
External links: Talk details; Event details
In : Mechanical & Materials Engineering for Particle Accelerators and Detectors, 2-15 June 2024, Sint-Michielsgestel, Netherlands
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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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Cleaning of laser-induced periodic surface structures on copper by gentle wet chemical processing
/ Lorenz, Pierre (TROPOS, Leibniz) ; Ehrhardt, Martin (TROPOS, Leibniz) ; Lotnyk, Andriy (TROPOS, Leibniz) ; Griebel, Jan (TROPOS, Leibniz) ; Zimmer, Klaus (TROPOS, Leibniz) ; Zajadacz, Joachim (TROPOS, Leibniz) ; Himmerlich, Marcel (CERN) ; Bez, Elena (CERN ; Leipzig U.) ; Taborelli, Mauro (CERN) ; Rosenow, Steffen (Leipzig U.) et al.
•Cleaning of 365 nm LIPSS from debris of with microemulsions has been demonstrated.•Excellent debris and particles removal while maintaining the LIPSS pattern were found.•The cleaning mechanism is dominated of selective dissolution of nanomaterial and oxides. Laser-induced periodic surface structures (LIPSS) attract considerable attention due to the manifold applications enabled by these self-organised structures ranging from optical colouring to bio-mimicking or wetting effects. [...]
2024 - 10 p.
- Published in : Appl. Surf. Sci. 679 (2025) 161115
Fulltext: PDF;
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LHC Upgrades in preparation of Run 3
/ Arduini, G (CERN) ; Baglin, V (CERN) ; Bartosik, H (CERN) ; Bottura, L (CERN) ; Bracco, C (CERN) ; Bradu, B (CERN) ; Bregliozzi, G (CERN) ; Brodzinski, K (CERN) ; Bruce, R (CERN) ; Calviani, M (CERN) et al.
The Large Hadron Collider (LHC) Long Shutdown 2(2019–2021), following LHC Run 2, was primarily dedicated to theupgrade of the LHC Injectors but it included also a significantamount of activities aimed at consolidation of the LHC machinecomponents, removal of known limitations and initial upgrades inview of the High-Luminosity LHC (HL-LHC) to favour the intensityramp-up during Run 3 (2022–2025). An overview of the majormodifications to the accelerator and its systems is followed by asummary of the results of the superconducting magnet trainingcampaign to increase the LHC operation energy beyond the maximumvalue of 6.5 TeV reached during Run 2. [...]
2024 - 138 p.
- Published in : JINST 19 (2024) P05061
Fulltext: PDF;
In : The Large Hadron Collider and The Experiments for Run 3, pp.P05061
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Plasma Cleaning of Hydrocarbon and Carbon Contaminated Surfaces of Accelerator Components
/ Giordano, M C (CERN) ; Pinto, P Costa (CERN) ; Henrist, B (CERN) ; Himmerlich, M (CERN) ; Taborelli, M (CERN) ; Thaus, N (CERN) ; Carlino, V (Unlisted, US) ; Fahey, M (Unlisted, US) ; Monteiro, J (Unlisted, US) ; Tran, L (Unlisted, US)
To achieve the vacuum quality required for the operation of particle accelerators, the surface of the vacuum vessels must be clean and free of hydrocarbons. This is usually done by wet chemistry processes, e.g. [...]
2024 - 6 p.
- Published in : J. Phys. : Conf. Ser.: 2687 (2024) , no. 8, pp. 082048
- Published in : JACoW IPAC: 2023 (2023) , pp. THPM038
Fulltext: PublicationJACoW - PDF; PublicationIOP - PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.082048
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Out of focus ultrafast processing of metals for reduced secondary electron yield
/ Uren, Robin (U. Dundee) ; Din, A (U. Dundee) ; Wackerow, S (U. Dundee) ; Bez, E (CERN) ; Pfeiffer, S (CERN) ; Rimoldi, M (CERN) ; Himmerlich, M (CERN) ; Taborelli, M (CERN) ; Abdolvand, A (U. Dundee)
We have demonstrated out-of-focus ultrafast pulsed laser processing of copper with
a variable working distance, without the need for mechanical movement. This was achieved
by employing a diffractive optical element. [...]
2023 - 13 p.
- Published in : Opt. Mater. Express 13 (2023) 1228
Fulltext: PDF;
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Irradiation Induced Aging of Epoxy Resins for Impregnation of Superconducting Magnet Coils
/ Parragh, D M (CERN) ; Scheuerlein, C (CERN) ; Piccin, R (CERN) ; Ravotti, F (CERN) ; Pezzullo, G (CERN) ; Ternova, D (CERN) ; Taborelli, M (CERN) ; Lehner, M (Vienna, Tech. U., Atominst.) ; Eisterer, M (Vienna, Tech. U., Atominst.)
Understanding the effect of radiation on the functional properties of epoxy resins is crucial for their application in future particle accelerators like the Future Circular Collider (FCC). We compare the irradiation induced aging rates of six epoxy resin systems that can be used for the vacuum impregnation of magnet coils. [...]
2024 - 7 p.
- Published in : IEEE Trans. Appl. Supercond. 34 (2024) 1-7
Fulltext: PDF;
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Picosecond pulsed 532 nm laser system for roughening and secondary electron yield reduction of inner surfaces of up to 15 m long tubes
/ Bez, Elena (CERN ; Leipzig U.) ; Himmerlich, Marcel (CERN) ; Beaudou, Benoit (XLIM, Limoges) ; Portilla, Ana Karen Reascos (CERN) ; Wackerow, Stefan (U. Dundee) ; Rimoldi, Martino (CERN) ; Pfeiffer, Stephan (CERN) ; Wiesendanger, Markus (Zurich U.) ; Benabid, Fetah (XLIM, Limoges) ; Taborelli, Mauro (CERN) et al.
Laser-induced surface structuring is a promising method to suppress electron mulitpacting in the vacuum pipes of particle accelerators. Electrons are scattered inside the rough surface structure, resulting in a low Secondary Electron Yield (SEY) of the material. [...]
2023 - 11 p.
- Published in : Rev. Sci. Instrum. 94 (2023) 103007
Fulltext: PDF;
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