2023-03-25
06:30 |
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Recent advances and perspectives of the high precision laser metrology
/ Batusov, V (Dubna, JINR) ; Budagov, J (Dubna, JINR) ; Glagolev, V (Dubna, JINR) ; Lyablin, M (Dubna, JINR) ; Shirkov, G (Dubna, JINR) ; Gayde, J Ch (CERN) ; Di Girolamo, B (CERN) ; Mainaud Durand, H (CERN) ; Mergelkuhl, D (CERN) ; Nessi, M (CERN) et al.
The laser-based metrology presents new means and opens possibilities in solving
tasks where achievement of a high precision survey is of the principal signiˇcance
necessity.
The extended laser ˇducial line (coordinate axis) is necessary for precision
alignment of basic structure units of large-scale accelerators, for precision assembly
of subdetectors when mounting large spectrometric complexes, for online control of
space stability of particle detectors during the data taking period.
The high sensitivity laser inclinometers open the new possibilities for ground
motion control and for accelerator (collider) beam space stabilization essential for
achievement of stable high intensity (luminosity) at the interaction area.
The investigation has been performed at the Dzhelepov Laboratory of Nuclear
Problems, JINR..
E13-2014-21.
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2014. - 17 p.
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2023-03-25
04:20 |
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Development of a Virtual EM Detector for the Advanced Particle Accelerator Modeling Code WarpX
/ Rheaume, Elisa (Cal State, Long Beach ; LBNL, Berkeley) ; Giacomel, Lorenzo (CERN) ; Vay, Jean-Luc (LBNL, Berkeley) ; Huebl, Axel (LBNL, Berkeley)
In physics research particle accelerators are highly valued, and extraordinarily expensive, technical instruments. [...]
arXiv:2201.08469.
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9 p.
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2023-03-18
06:52 |
Radiation Protection at the Large Hadron Collider: Problematics, Challenges and Advanced Monte Carlo Simulation Techniques
/ Infantino, Angelo (CERN) ; Björkman, Daniel (CERN) ; Elie, Lucie (CERN) ; Maietta, Maddalena (CERN) ; Tromel, Christophe (CERN) ; Vincke, Heinz (CERN)
This paper provides an overview of the problems, challenges, and the advanced simulation techniques used to study and plan complex interventions in radiation areas at CERNs Large Hadron Collider and its future upgrade to the High-Luminosity Large Hadron Collider. The operational radiation protection aspects are supported by state of the art simulations by means of the FLUKA Monte Carlo code and estimates conducted via other tools such as ActiWiz and SESAME, used within the HSE-RP group..
2022 - 12 p.
- Published in : Environments 9 (2022) 54
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2023-03-17
06:16 |
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2023-03-17
06:15 |
Integrated stratigraphic, sedimentological and petrographical evaluation for CERN’s Future Circular Collider subsurface infrastructure (Geneva Basin, Switzerland-France)
/ Haas, Maximilian (CERN ; Geneva U.) ; Carraro, Davide (Geneva U.) ; Ventra, Dario (Geneva U.) ; Plötze, Michael (Zurich, ETH) ; De Haller, Antoine (Geneva U.) ; Moscariello, Andrea (Geneva U.)
AbstractThe European Organization for Nuclear Research (CERN) is currently undertaking a feasibility study to build the next-generation particle accelerator, named the Future Circular Collider (FCC), hosted in a 90–100 km subsurface infrastructure in the Geneva Basin, extending across western Switzerland and adjacent France. This article represents a preliminary, basin-scale stratigraphic and lithotype analysis using state-of-the-art Swiss and French stratigraphic terminology, set in context with the FCC. [...]
2022 - 43 p.
- Published in : Swiss Journal of Geosciences 115 (2022) 16
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2023-03-17
04:32 |
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Towards a Muon Collider
/ Accettura, Carlotta (CERN) ; Adams, Dean (Rutherford) ; Agarwal, Rohit (UC, Berkeley (main)) ; Ahdida, Claudia (CERN) ; Aimè, Chiara (Pavia U. ; INFN, Pavia) ; Amapane, Nicola (INFN, Turin ; Turin U.) ; Amorim, David (CERN) ; Andreetto, Paolo (INFN, Padua) ; Anulli, Fabio (INFN, Rome) ; Appleby, Robert (Manchester U.) et al.
A muon collider would enable the big jump ahead in energy reach that is needed for a fruitful exploration of fundamental interactions. [...]
arXiv:2303.08533 ; FERMILAB-PUB-23-123-AD-PPD-T.
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118 p.
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2023-03-16
07:28 |
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2023-03-16
07:28 |
Simulated Behavior of CNT Wires Irradiated in the HiRadMat Experimental Line at CERN
/ Mariet, Alexandre (CERN) ; Devel, Michel (FEMTO-ST) ; Groetz, Jean-Emmanuel (Chrono-environ., Besancon) ; Mikhalchan, Anastasiia (Unlisted, ES) ; Moser, Benjamin (CERN) ; Veness, Raymond (CERN) ; Vilatela, Juan Jose (Unlisted, ES)
With the planned increase of luminosity at CERN for HL-LHC and FCC, instruments for beam quality control must meet new challenges. The current wires, made up of plain carbon fibers and gold-plated tungsten would be damaged due to their interactions with the higher luminosity beams. [...]
2022 - 5 p.
- Published in : JACoW IBIC 2022 (2022) 527-531
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In : 11th International Beam Instrumentation Conference (IBIC 2022), Cracow, Poland, 11 - 15 Sep 2022, pp.527-531
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2023-03-16
07:28 |
Fast Spill Monitor Studies for the SPS Fixed Target Beams
/ Roncarolo, Federico (CERN) ; Arrutia Sota, Pablo Andreas (CERN) ; Belohrad, David (CERN) ; Bergamaschi, Michele (CERN) ; Calvo Giraldo, Eva (CERN) ; Effinger, Ewald (CERN) ; Fraser, Matthew (CERN) ; Kain, Verena (CERN) ; Martin Nieto, Miguel (CERN) ; Mazzoni, Stefano (CERN) et al.
At the CERN Super Proton Synchrotron (SPS) the proton beam is supplied to the fixed target experiments in the North Area facility (NA) via a slow extraction process, taking place at 400 GeV. The monitoring of the spill quality during the extraction, lasting 4.8 seconds with the present SPS setup, is of high interest for minimising beam losses and providing the users with uniform proton-on-target rates. [...]
2022 - 5 p.
- Published in : JACoW IBIC 2022 (2022) 522-526
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In : 11th International Beam Instrumentation Conference (IBIC 2022), Cracow, Poland, 11 - 15 Sep 2022, pp.522-526
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2023-03-16
07:28 |
The Diamond Beam Loss Monitoring System at CERN LHC and SPS
/ Calvo Giraldo, Eva (CERN) ; Effinger, Ewald (CERN) ; Gonzalez Berges, Manuel (CERN) ; Kral, Jiri (Prague, Tech. U.) ; Martínez Samblas, Javier (CERN) ; Morales Vigo, Sara (CERN) ; Salvachúa, Belen (CERN) ; Zamantzas, Christos (CERN)
The Large Hadron Collider (LHC) and the Super Proton Synchrotron (SPS) accelerators are equipped with 17 pCVD diamond based Beam Loss detectors at strategical locations where their nanosecond resolution can provide insights into the loss mechanisms and complement the information of the standard ionization chamber type detectors. They are used at the injection and extraction lines of the LHC and SPS, to analyse the injection or extraction efficiency, and to verify the timing alignment of other elements like kicker magnets. [...]
2022 - 5 p.
- Published in : JACoW IBIC 2022 (2022) 202-206
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In : 11th International Beam Instrumentation Conference (IBIC 2022), Cracow, Poland, 11 - 15 Sep 2022, pp.202-206
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