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CERN Document Server 2,026 records found  1 - 10nextend  jump to record: Search took 0.46 seconds. 
1.
(100)
Form measurement of a 0.1 mm diameter wire with a chromatic confocal sensor, with associated uncertainty evaluation / Sanz, Claude (CERN) ; Giusca, Claudiu (Cranfield U.) ; Morantz, Paul (Teddington, Natl. Phys. Lab) ; Marin, Antonio (CERN) ; Chérif, Ahmed (CERN) ; Schneider, Jürgen (Hexagon Metrology, Wetzlar) ; Mainaud-Durand, Hélène (CERN) ; Shore, Paul (Teddington, Natl. Phys. Lab) ; Steffens, Norbert (Hexagon Metrology, Wetzlar)
The accurate characterisation of a copper–beryllium wire with a diameter of 0.1 mm is one of the steps to increase the precision of future accelerators’ pre-alignment. Novelties in measuring the wire properties were found in order to overcome the difficulties brought by its small size. [...]
2018 - 6 p. - Published in : Meas. Sci. Technol. 29 (2018) 074010 Fulltext: PDF;
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2.
(91)
A rotary mount for positioning a stretched wire axis within a coordinate measurement machine / Sanz, C (CERN ; Cranfield U.) ; Cherif, A (CERN) ; Mainaud, H (CERN) ; Morel, F (CERN) ; Morantz, P (Cranfield U.) ; Shore, P (Cranfield U.) ; Schneider, J (Unlisted, GE) ; Steffens, N (Unlisted, GE)
The European Organisationfor Nuclear Research(CERN)is studying future colliders for increasing the chances of new discoveries. Among themthere isthe Compact Linear Collider (CLIC). [...]
2016 - 3 p. - Published in : (2016) Fulltext: PDF;
In : International Workshop on Accelerator Alignment, Grenoble, France, 3 - 7 Oct 2016
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3.
(85)
Evaluation of the performance variation of porous air pads on discontinuous surfaces / Sanz, C (Cranfield U. ; CERN) ; Morantz, P (Cranfield U. ; Teddington, Natl. Phys. Lab) ; Lunt, A J G (Bath U.) ; Shore, P (Cranfield U. ; Teddington, Natl. Phys. Lab) ; Chérif, A (CERN) ; Schneider, J (Unlisted, DE) ; Mainaud-Durand, H (CERN) ; Steffens, N (Unlisted, DE)
A new high accuracy position measurement system has been developed. It measures the position of a 0.1 mm diameter copper-beryllium wire that informs alignment of energy beams in advanced particle accelerators. [...]
2020 - 7 p. - Published in : Prec. Eng. 62 (2020) 16-22 Fulltext : PDF;
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4.
(44)
Fiducialisation and initial alignment of CLIC component with micrometric accuracy / Mainaud Durand, Helene (CERN) ; Artoos, Kurt (CERN) ; Buzio, Marco (CERN) ; Caiazza, Domenico (CERN) ; Catalan Lasheras, Nuria (CERN) ; Cherif, Ahmed (CERN) ; Doytchinov, Iordan Petrov (CERN) ; Fuchs, Jean-Frederic (CERN) ; Gaddi, Andrea (CERN) ; Galindo Munoz, Natalia (CERN) et al.
We propose a new solution to fiducialise the three major components of the CLIC collider: quadrupoles, beam-position monitors (BPM), and accelerating structures (AS). [...]
CERN-ACC-NOTE-2016-0072. - 2016. - 8 p.
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5.
(44)
Development and validation of a multilateration test bench for particle accelerator pre-alignment / Kamugasa, Solomon William (CERN ; Zurich, ETH) ; Rothacher, Markus (Zurich, ETH) ; Gayde, Jean-Christophe (CERN) ; Mainaud Durand, Helene (CERN)
The development and validation of a portable coordinate measurement solution for fiducialization of compact linear collider (CLIC) components is presented. This new solution addresses two limitations of high-accuracy state-of-the-art coordinate measuring machines, i.e. [...]
2018 - 11 p. - Published in : Meas. Sci. Technol. 29 (2018) 034010
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(42)
Status of PACMAN Project at CERN / Catalan-Lasheras, Nuria (CERN) ; Mainaud-Durand, Hélène (CERN) ; Modena , Michele (CERN)
Though the Large Hadron Collider (LHC) at CERN is just at the start of a program expected to run for 20 additional years, CERN is studying the next generation of colliders, like the Compact Linear Collider (CLIC). [...]
CERN-ACC-2015-0076. - 2015.
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The New CLIC Main Linac Installation and Alignment Strategy / Mainaud Durand, Helene (CERN) ; Gayde, Jean-Christophe (CERN) ; Jaros, Jakub (CERN) ; Rude, Vivien (CERN) ; Sosin, Mateusz (CERN) ; Zemanek, Anna (CERN)
A complete solution was proposed for the pre-alignment of the CLIC main linac in 2012 for the Conceptual Design Report. Two recent studies provide new perspectives for such a pre-alignment. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-WEPAF066 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF066
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Thermal effects compensation and associated uncertainty for large magnet assembly precision alignment / Doytchinov, I (CERN ; Cranfield U.) ; Shore, P (CERN ; Teddington, Natl. Phys. Lab) ; Nicquevert, B (CERN) ; Tonnellier, X (Cranfield U.) ; Heather, A (Cranfield U.) ; Modena, M (CERN)
Big science and ambitious industrial projects continually push technical requirements forward beyond the grasp of conventional engineering techniques. An example of these are the extremely tight micrometric assembly and alignment tolerances required in the field of celestial telescopes, particle accelerators, and the aerospace industry. [...]
2019 - 16 p. - Published in : Prec. Eng. 59 (2019) 134-149 Fulltext: PDF;
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Sub-micron scale transverse electron beam size diagnostics methodology based on the analysis of optical transition radiation source distribution / Aryshev, A (KEK, Tsukuba) ; Ainsworth, R (Royal Holloway, U. of London) ; Aumeyr, T (Royal Holloway, U. of London) ; Bergamaschi, M (Royal Holloway, U. of London) ; Boogert, S T (Royal Holloway, U. of London) ; Karataev, P (Royal Holloway, U. of London) ; Kieffer, R (CERN) ; Kruchinin, K (Royal Holloway, U. of London) ; Lefevre, T (CERN) ; Mazzoni, S (CERN) et al.
Optical Transition Radiation (OTR) appearing when a charged particle crosses a boundary between two media with different dielectric properties has widely been used as a tool for transverse profile measurements of charged particle beams in numerous facilities worldwide. The resolution of the conventional monitors is defined by the dimensions of the Point Spread Function (PSF) distribution, i.e. [...]
2020 - 18 p. - Published in : JINST 15 (2020) P01020 Fulltext: PDF;
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Application of probabilistic modelling for the uncertainty evaluation of alignment measurements of large accelerator magnets assemblies / Doytchinov, Iordan Petrov (CERN ; Cranfield U.) ; Tonnellier, Xavier (Cranfield U.) ; Shore, Paul (Teddington, Natl. Phys. Lab ; Cranfield U.) ; Nicquevert, Bertrand (CERN) ; Modena, Michele (CERN) ; Mainaud Durand, Helene (CERN)
Micrometric assembly and alignment requirements for future particle accelerators, and especially large assemblies, create the need for accurate uncertainty budgeting of alignment measurements. Measurements and uncertainties have to be accurately stated and traceable, to international standards, for metre-long sized assemblies, in the range of tens of µm. [...]
2018 - 15 p. - Published in : Meas. Sci. Technol. 29 (2018) 054001 Fulltext: PDF;
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