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The Digital Signal Processing Chain of the CERN LIU BWS
/ Belohrad, David (CERN) ; Emery, Jonathan (CERN) ; Esteban Felipe, Jose (CERN) ; Goldblatt, Aurélie (CERN) ; Guerrero, Ana (CERN) ; Martin Nieto, Miguel (CERN) ; Roncarolo, Federico (CERN)
Between 2019 and 2023, as part of the LHC Injectors Upgrade (LIU), a major renovation of the CERN wire scanners (BWS) was performed. The main driving force was to prepare the wire scanners for the High-Luminosity LHC (HL-LHC), during which the instantaneous luminosity is expected to double, to around 5× 10³⁴cm⁻²s⁻¹. [...]
2023 - 5 p.
- Published in : JACoW IBIC 2023 (2023) 288-292
Fulltext: PDF;
In : 12th International Beam Instrumentation Conference (IBIC 2023), Saskatoon, Canada, 10 - 14 Sep 2023, pp.288-292
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2.
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Commissioning of the LHC Injectors BWS Upgrade
/ Emery, Jonathan (CERN) ; Andreazza, William (CERN) ; Belohrad, David (CERN) ; Di Carlo, Salvatore (CERN) ; Esteban Felipe, Jose C (CERN) ; Goldblatt, Aurélie (CERN) ; Gudkov, Dmitry (CERN) ; Guerrero, Ana (CERN) ; Jackson, Stephen (CERN) ; Lacarrere, Guillaume O (CERN) et al.
A novel generation of fast Beam Wire Scanners (BWS), developed in the framework of the LHC Injectors Upgrade (LIU), has been recently deployed in the 3 LHC injector synchrotrons, accelerating protons from 160 MeV to 450 GeV, during the 2019-2020 LHC long shutdown. The monitors feature high precision motor controller, high resolution wire position monitoring and wide dynamic range secondary particles detectors. [...]
JACoW, 2021 - 5 p.
- Published in : JACoW IBIC 2021 (2021) 239-243
Fulltext: PDF;
In : 10th International Beam Instrumentation Conference (IBIC 2021), Online, Korea, 13 - 17 Sep 2021, pp.239-243
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3.
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Assessing the Performance of the New Beam Wire Scanners for the CERN LHC Injectors
/ Di Carlo, Salvatore (CERN) ; Andreazza, William (CERN) ; Belohrad, David (CERN) ; Emery, Jonathan (CERN) ; Esteban Felipe, Jose (CERN) ; Goldblatt, Aurélie (CERN) ; Gudkov, Dmitry (CERN) ; Guerrero, Ana (CERN) ; Jackson, Stephen (CERN) ; Lacarrere, Guillaume (CERN) et al.
Reliably measuring the transverse beam profile in the LHC injector chain is essential for the operation of the CERN accelerator complex. This report aims to assess the reliability, stability, and reproducibility of a new generation of beam wire scanners developed at CERN in the framework of the LHC Injectors Upgrade (LIU). [...]
2022 - 4 p.
- Published in : JACoW IBIC 2022 (2022) 443-446
Fulltext: PDF;
In : 11th International Beam Instrumentation Conference (IBIC 2022), Cracow, Poland, 11 - 15 Sep 2022, pp.443-446
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4.
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A New Luminosity Monitor for the LHC Run 3
/ Mazzoni, Stefano (CERN) ; Andreazza, William (CERN) ; Balci, Elif (CERN) ; Belohrad, David (CERN) ; Bravin, Enrico (CERN) ; Chritin, Nicolas (CERN) ; Esteban Felipe, Jose (CERN) ; Lefèvre, Thibaut (CERN) ; Martin Nieto, Miguel (CERN) ; Palm, Marcus (CERN)
The Beam Rate of Neutrals (BRAN) is a monitor that provides a relative luminosity measurement for the four LHC experiments. BRANs are used during operations as a tool to find and optimise collision and to cross-check experiments luminosity monitors. [...]
2022 - 5 p.
- Published in : JACoW IBIC 2022 (2022) 163-167
Fulltext: PDF;
In : 11th International Beam Instrumentation Conference (IBIC 2022), Cracow, Poland, 11 - 15 Sep 2022, pp.163-167
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5.
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Beam Loss Localisation with an Optical Beam Loss Monitor in the CLEAR Facility at CERN
/ Benítez Berrocal, Sara (CERN) ; Chen, Minsi (Huddersfield U.) ; Effinger, Ewald (CERN) ; Esteban Felipe, Jose (CERN) ; Farabolini, Wilfrid (IRFU, Saclay ; CERN) ; Korysko, Pierre (CERN ; Oxford U.) ; Lernevall, Anders (CERN) ; Salvachúa, Belen (CERN)
A prototype of a Beam Loss Monitor based on the detection of Cherenkov light in optical fibres is being developed to measure beam losses in the CERN Super Proton Synchrotron. Several testing campaigns have been planned to benchmark the simulations of the system and test the electronics in the CLEAR facility at CERN. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 351-354
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.351-354
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6.
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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
Fulltext: PDF;
In : 11th International Beam Instrumentation Conference (IBIC 2022), Cracow, Poland, 11 - 15 Sep 2022, pp.522-526
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7.
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Experimental Investigation of Gold Coated Tungsten Wires Emissivity for Applications in Particle Accelerators
/ Navarro Fernandez, Araceli (CERN) ; Martin Nieto, Miguel (CERN) ; Roncarolo, Federico (CERN)
The operation of wire grids and wire scanners as beam profile monitors can be heavily affected, both in terms of measurement accuracy and wire integrity, by the thermal response of the wires to the energy deposited by the charged particles. Accurate measurements of material emissivity are crucial, as Radiative Cooling represent the most relevant cooling process. [...]
2022 - 5 p.
- Published in : JACoW IBIC 2022 (2022) 438-442
Fulltext: PDF;
In : 11th International Beam Instrumentation Conference (IBIC 2022), Cracow, Poland, 11 - 15 Sep 2022, pp.438-442
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8.
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Performance Assessment of Pre-Series Fast Beam Wire Scanner Prototypes for the Upgrade of the CERN LHC Injector Complex
/ Sirvent, Jose (CERN) ; Andersson, Patrik (CERN) ; Andreazza, William (CERN) ; Dehning, Bernd (CERN) ; Emery, Jonathan (CERN) ; Garcia, Lionel (CERN) ; Gudkov, Dmitry (CERN) ; Roncarolo, Federico (CERN) ; Tassan-Viol, Jean (CERN) ; Trad, Georges (CERN) et al.
A new generation of beam wire scanner (BWS), for transversal beam profile monitoring, is under development on the framework of the LHC Injector Upgrade project at CERN. Two pre-series prototypes have been built and installed in the Super Proton Synchrotron and Proton Synchrotron Booster, to assess the performance of the upgraded BWS concept. [...]
2018 - 4 p.
- Published in : 10.18429/JACoW-IBIC2017-WEPCC03
Fulltext: PDF;
In : 6th International Beam Instrumentation Conference, Grand Rapids, MI, USA, 20 -24 Aug 2017, pp.WEPCC03
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9.
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Commissioning of the LHC Injectors Upgrade fast wire scanners and first experimental results
/ Di Carlo, S (CERN) ; Emery, J (CERN) ; Andreazza, W (CERN) ; Belohrad, D (CERN) ; Esteban Felipe, J C (CERN) ; Goldblatt, A (CERN) ; Gudkov, D (CERN) ; Guerrero, A (CERN) ; Jackson, S (CERN) ; Lacarrere, G O (CERN) et al.
The LHC Injectors Upgrade (LIU) program included new fast beam wire scanners (BWS) to meet the requirements of the higher brightness and intensity High Luminosity LHC (HL-LHC) beams. Seventeen LIU BWS have been installed during the LHC second long shutdown (LS2) and they are currently used in the daily operations of the LHC injectors. [...]
2023 - 14 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1053 (2023) 168328
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10.
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