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CERN Document Server 573 record trovati  1 - 10successivofine  salta al record: La ricerca ha impiegato 0.79 secondi. 
1.
Shutter-type multi-point optical alignment using a Structured Laser Beam in vacuum / Niewiem, Witold Grzegorz (ETH, Zurich (main) ; CERN) ; Figura, Sebastian Antoni (CERN) ; Dusek, Martin (Liberec Tech. U. ; CERN) ; Mergelkuhl, Dirk (CERN) ; Gayde, Jean-Christophe (CERN) ; Wieser, Andreas (ETH, Zurich (main))
This paper presents an alignment concept employing a Structured Laser Beam (SLB) for offset measurements over a 140 m distance. The prototype consists of an SLB generator and three measurement stations within a vacuum system. [...]
CERN-ACC-2025-0003.- Geneva : CERN, 2025 - 19 p. - Published in : JINST 20 (2025) P07001 Fulltext: PDF;
Record dettagliato
2.
Development and Qualification of Micrometre Resolution Motorized Actuators for the High Luminosity Large Hadron Collider Full Remote Alignment System / Noir, Michel (CERN) ; Biedrawa, Piotr (CERN ; AGH-UST, Cracow) ; Fargier, Sylvain (CERN) ; Jasonek, Wojciech (CERN ; AGH-UST, Cracow) ; Sosin, Mateusz (CERN)
In the framework of the High-Luminosity Large Hadron Collider project at CERN, a Full Remote Alignment System (FRAS) is under development, integrating a range of solutions for the remote positioning of accelerator components. An important component of FRAS is the motorized actuator allowing the remote adjustment of accelerator components with a micrometer resolution. [...]
2024 - 4 p. - Published in : JACoW MEDSI 2023 (2024) 243-246 Fulltext: PDF;
In : 12th Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation (MEDSI 2023), Beijing, China, 6 - 10 Nov 2023, pp.243-246
Record dettagliato
3.
An Interferometric Multi-Sensor Absolute Distance Measurement System for Use in Harsh Environments / Sosin, Mateusz (CERN) ; Gonzalez Cobas, Juan David (CERN) ; Mohammed, Isa (Nottingham U.) ; Leach, Richard (Nottingham U.) ; Lipinski, Maciej Marek (CERN) ; Rude, Vivien (CERN) ; Rutkowski, Jaroslaw Marek ; Watrelot, Leonard
Fourier transform-based frequency sweeping interferometry (FT-FSI) is an interferometric technique that enables absolute distance measurement by detecting the beat frequencies from the interference of reflected signals. [...]
CERN-ACC-NOTE-2025-0017. - 2025 - 33.
Record dettagliato
4.
Generation of symmetrical optical caustic beams for precise alignment / Dusek, Martin (CERN ; Liberec Tech. U.) ; Gayde, Jean-Christophe (CERN) ; Sulc, Miroslav (Prague, Inst. Plasma Phys.)
Generating layers of symmetrical optical caustic beams using a specific configuration of cylindrical lenses is an innovative idea with potential application in precision alignment and other fields. The technique allows the generation of layers of non-diffracting beams with opposite accelerating directions. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) THPG35 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPG35
Record dettagliato
5.
Numerical simulation of large tunnel alignments under seismic loading: The Large Hadron Collider as a case study / Mubarak, A G (CERN ; Dundee U.) ; Knappett, J A (U. Dundee) ; Brown, M J (U. Dundee)
Three-dimensional seismic analysis of large tunnel alignments using the continuum (Finite-Element; FE) modelling technique can be computationally expensive. This is due to the extended length of tunnels compared to their diameter (which controls the local ground-structure interaction and hence, the required maximum FE element size). [...]
2024 - 14 p. - Published in : Tunnell.Undergr.Space Technol. 157 (2025) 106315 Fulltext: PDF;
Record dettagliato
6.
13th Beam Telescopes and Test Beams Workshop - BTTB13   19 - 23 May 2025  - Valencia, Es  .-
2025
Record dettagliato
7.
LHCb RICH Fast-timing photon detection at the SPS charged particle beam / Bartolini, M (Cambridge U.) ; Bolzonella, R (Ferrara U. ; INFN, Ferrara) ; Borgato, F (Padua U.) ; Cardinale, R (Genoa U. ; INFN, Genoa) ; Cojocariu, L N (Bucharest, IFIN-HH) ; Cotta Ramusino, A (INFN, Ferrara) ; Duk, V (INFN, Perugia ; Perugia U.) ; Fantini, L (INFN, Perugia ; Perugia U.) ; Foulds-Holt, D (Cambridge U.) ; Keizer, F (CERN) et al.
Abstract The use of a new optoelectronic readout chain with  𝒪(100)ps time resolution is a major milestone in the development of RICH detectors for environments with a high number of particle interactions per bunch crossing, such as the High-Luminosity LHC. A prototype chain, based on MAPMT and SiPM photon sensors coupled to readout electronics integrating the FastIC ASIC and a TDC-in-FPGA, is presented. [...]
LHCb-DP-2025-003.- 2025 - 29 p. - Published in : JINST 20 (2025) P03034 Fulltext: PDF;
Record dettagliato
8.
Global Alignment of ATLAS Forward Proton Detectors / Mroz, Tomasz Grzegorz (Polish Academy of Sciences (PL))
The AFP global alignment method using photon-fusion-induced lepton pair production is discussed. [...]
ATL-FWD-PROC-2025-002. - 2025 - 6.
Original Communication (restricted to ATLAS) - Full text
Record dettagliato
9.
Motorized Universal Adjustment Platform for Micrometric Adjustment of Accelerator Components / Noir, Michel (CERN) ; Baillard, Dylan (CERN) ; Biedrawa, Piotr (CERN ; AGH-UST, Cracow) ; Gentini, Luca (CERN) ; Gothe, Aleksandur (Aarhus U.) ; Jasonek, Wojciech (CERN ; AGH-UST, Cracow) ; Nuiry, Francois-Xavier (CERN) ; Rude, Vivien (CERN) ; Seidenbinder, Regis (CERN) ; Sosin, Mateusz (CERN) et al.
In order to optimize alignment activities in a highly radioactive environment, the Geodetic Metrology Group at CERN has developed a standardized featuring 6 degree of freedom (DoF) Universal Adjustment Platform (UAP). After a first prototyping phase in 2021 with a manual UAP, the design has been consolidated and is now compatible with the installation of motorized actuators to form a remotely adjustable 5-6 DoF platform able to perform positioning with micrometre resolution. [...]
2024 - 3 p. - Published in : JACoW MEDSI 2023 (2024) THPPP026 Fulltext: PDF;
In : 12th Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation (MEDSI 2023), Beijing, China, 6 - 10 Nov 2023, pp.THPPP026
Record dettagliato
10.
Laboratory and beam-test performance study of a 55 μm pitch iLGAD sensor bonded to a Timepix3 readout chip / Svihra, Peter (CERN ; Prague, Inst. Phys.) ; Bates, Richard (Glasgow U.) ; Braach, Justus (CERN) ; Buschmann, Eric (CERN ; Brookhaven Natl. Lab.) ; Dannheim, Dominik (CERN) ; Maneuski, Dima (Glasgow U.) ; Moffat, Neil (Barcelona, Inst. Microelectron.) ; Otarid, Younes (CERN)
This contribution reports on characterisation results of a large-area (2 cm2) small pitch (55 μm) inverse Low-Gain Avalanche Detector (iLGAD), bonded to a Timepix3 readout chip. The ilGAD sensors were produced by Micron Semiconductor Ltd with the goal to obtain good gain uniformity and maximise the fill-factor -- an issue present with standard small-pitch LGAD designs. [...]
arXiv:2409.20194; CERN-EP-RDET-2025-001.- 2024-11-13 - 10 p. - Published in : JINST Fulltext: publication - PDF; Publication - PDF; 2409.20194 - PDF;
In : 25th international Workshop on Radiation Imaging Detectors (iWoRiD2024), Lisbon, Portugal, 30 Jun - 4 Jul 2024, pp.C11006
Record dettagliato

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