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CERN Accelerating science

CERN Document Server 24 εγγραφές βρέθηκαν  1 - 10επόμενοτέλος  μετάβαση στην εγγραφή: Η έρευνα πήρε 0.58 δευτερόλεπτα. 
1.
Real-time processing of longitudinal Schottky signals in CERN’s antiproton chain / Niccolini, Marco (CERN) ; Barrientos, Diego (CERN) ; Suminski, Maciej (CERN) ; Angoletta, Maria Elena (CERN) ; Soderen, Martin (CERN) ; Freyermuth, Pierre (CERN) ; Brischetto, Ylenia (CERN)
A low-latency, real-time diagnostic system for the analysis of longitudinal Schottky signals in CERN’s antiproton chain has been developed. The system, installed in CERN’s Antiproton Decelerator (AD), processes the combined output of two low-noise, wideband AC beam transformers. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) WEPG27 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPG27
2.
Operation and New Capabilities of CERN's Digital LLRF Family for Injectors / Angoletta, Maria Elena (CERN) ; Findlay, Alan (CERN) ; Rey, Anthony (CERN) ; Bielawski, Bartosz Przemyslaw (CERN) ; Barrientos, Diego (CERN) ; Suminski, Maciej (CERN) ; Soderen, Martin (CERN) ; Jaussi, Michael (CERN) ; Albright, Simon (CERN) ; Brischetto, Ylenia (CERN) et al.
CERN’s digital Low-Level RF (LLRF) family for injectors is deployed on CERN’s PS Booster (PSB), Low Energy Ion Ring (LEIR), Extra Low ENergy Antiproton (ELENA) ring and Antiproton Decelerator (AD). It implements multiple capabilities, including beam and cavity feedback loops, bunch shaping, longitudinal blowup, bunch splitting and longitudinal diagnostics.New capabilities are now available and the LLRF family is soon going to be deployed for tests also in CERN’s Proton Synchrotron (PS). [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) THPA094 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPA094
3.
MD 7224: LHC collimation quench test with protons / Hermes, Pascal Dominik (CERN) ; Abramov, Andrey (CERN) ; Bruce, Roderik (CERN) ; Calzolari, Daniele (Universita e INFN, Padova (IT)) ; D'Andrea, Marco (CERN) ; Giovannozzi, Massimo (CERN) ; Hernalsteens, Cedric (CERN) ; Lechner, Anton (CERN) ; Lindstrom, Bjorn Hans Filip (CERN) ; Mirarchi, Daniele (CERN) et al.
This note describes a collimation quench test performed at the CERN Large Hadron Collider. [...]
CERN-ACC-NOTE-2023-0024.
- 2023.
4.
Chromaticity measurement using the beam transfer function (MD 6803) / Buffat, Xavier (CERN) ; Giacomel, Lorenzo (CERN) ; Mounet, Nicolas (CERN) ; Soderen, Martin
Chromaticity measurement at the LHC is based on energy modulation which is incompatible with high intensity beam operation. [...]
CERN-ACC-NOTE-2023-0014.
- 2023. - 10 p.
Full text
5.
Reconstruction of Transverse Phase Space From Transverse Feedback Data for Real Time Extraction of Vital LHC Machine Parameters / Kotzian, Gerd (CERN) ; Soderen, Martin (CERN) ; Solvang, Preben (CERN) ; Stopjakova, Viera (Bratislava, Inst. Phys.) ; Valuch, Daniel (CERN)
The LHC transverse feedback system (ADT) provides bunch by bunch, turn by turn, normalized and digitized beam position signals from four pick-ups per plane and for each beam. Together with already existing powerful computer-based observation systems, this data can be used to reconstruct in real-time the transverse phase space coordinates of the centre-of-charges, for each individual bunch. [...]
2022 - 4 p. - Published in : JACoW IPAC 2022 (2022) 937-940 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.937-940
6.
Digital Low-Level RF System for the CERN Linac3 Accelerator / Valuch, Daniel (CERN) ; Alemany-Fernández, Reyes (CERN) ; Brischetto, Ylenia (CERN) ; Faeroe, Sindre (CERN) ; Piccinini, Giampaolo (CERN) ; Soderen, Martin (CERN)
A major consolidation of the aging RF system of the CERN Linac3, the ion source for the whole CERN accelerator chain, started during the Long Shutdown II. The main changes were an upgrade of the analogue Low-Level RF system (LLRF) and replacement of the 350 kW tube amplifiers by a solid-state equivalent. [...]
2022 - 4 p. - Published in : JACoW IPAC 2022 (2022) 853-856 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.853-856
7.
Low Latency, Online Processing of the High-Bandwidth Bunch-By-Bunch Observation Data From the Transverse Feedback System in the LHC / Söderén, Martin (CERN) ; Valuch, Daniel (CERN)
During long shutdown 2 (2019-2020) the transverse observation system (ADTObsBox) in the LHC will undergo a substantial upgrade. The purpose of this upgrade is to allow for true low latency, online processing of the 16 data-streams of transverse bunch-by-bunch, turn-by-turn positional data provided by the transverse feedback system in the LHC (ADT). [...]
2020 - 7 p. - Published in : EPJ Web Conf. 245 (2020) 01036 Fulltext from publisher: PDF;
In : 24th International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4 - 8 Nov 2019, pp.01036
8.
MD3310 – Complex tune shift measurement at flat-top in the LHC / Amorim, David (Universite Grenoble-Alpes (FR)) ; Antipov, Sergey ; Biancacci, Nicolo (CERN) ; Buffat, Xavier (CERN) ; Giordano, Francesco (Universita e sezione INFN di Napoli (IT)) ; Hemelsoet, Georges-Henry (CERN) ; Levens, Tom (CERN) ; Metral, Elias (CERN) ; Mounet, Nicolas (CERN) ; Ribes Metidieri, Ariadna (University of Barcelona (ES)) et al.
This note summarises the MD3310 activity. [...]
CERN-ACC-NOTE-2020-0053.
- 2020. - 6 p.
Full text
9.
MD3318 – Impedance Contribution of Secondary and Tertiary Collimators / Amorim, David (Universite Grenoble-Alpes (FR)) ; Antipov, Sergey ; Biancacci, Nicolo (CERN) ; Buffat, Xavier (CERN) ; Mereghetti, Alessio (CERN) ; Metral, Elias (CERN) ; Redaelli, Stefano (CERN) ; Salvant, Benoit (CERN) ; Soderen, Martin (CERN) ; Valuch, Daniel (CERN)
This report summarises the results of MD3318 about impedance measurements of individual LHC secondary and tertiary collimators. [...]
CERN-ACC-NOTE-2020-0033.
- 2020. - 11 p.
Full text
10.
MD1875 – Impedance Contribution of Single IR7 Secondary Collimators / Mereghetti, Alessio (CERN) ; Amorim, David (Universite Grenoble-Alpes (FR)) ; Biancacci, Nicolo (CERN) ; Carver, Lee Robert (University of Liverpool (GB)) ; Metral, Elias (CERN) ; Mirarchi, Daniele (University of Manchester (GB)) ; Redaelli, Stefano (CERN) ; Salvant, Benoit (CERN) ; Soderen, Martin (CERN)
This report summarises the results of MD1875 about impedance measurements of single LHCsecondary collimators in IR7. [...]
CERN-ACC-NOTE-2020-0022.
- 2020. - 8 p.
Full text

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