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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
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2.
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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
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3.
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Linac3, LEIR and PS Performance with Ions in 2021 and Prospects for 2022
/ Biancacci, Nicolo (CERN) ; Albright, Simon (CERN) ; Alemany-Fernández, Reyes (CERN) ; Alves, Diogo (CERN) ; Angoletta, Maria Elena (CERN) ; Barrientos, Diego (CERN) ; Bartosik, Hannes (CERN) ; Bellodi, Giulia (CERN) ; Bertolo, Sebastien (CERN) ; Bodart, Dominique (CERN) et al.
CERN accelerators underwent a period of long shutdown from the end of 2018 to 2020. During this time frame, significant hardware and software upgrades have been put in place to increase the performance of both proton and ion accelerator chains in the High Luminosity LHC era. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 1983-1986
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1983-1986
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4.
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Commissioning the New LLRF System of the CERN PS Booster
/ Albright, Simon (CERN) ; Angoletta, Maria Elena (CERN) ; Barrientos, Diego (CERN) ; Findlay, Alan (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN)
The PS Booster (PSB) is the first synchrotron in the injection chain for protons. The beams produced for the LHC and various fixed target experiments cover a very large parameter space. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2060-2063
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2060-2063
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5.
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A New Beam Loading Compensation and Blowup Control System Using Multi-Harmonic Digital Feedback Loops in the CERN Proton Synchrotron Booster
/ Barrientos, Diego (CERN) ; Albright, Simon (CERN) ; Angoletta, Maria Elena (CERN) ; Findlay, Alan (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN)
As part of the LHC Injectors Upgrade, the CERN Proton Synchrotron Booster (PSB) has been upgraded with new wide-band Finemet cavities and a renovated Low-Level Radio Frequency system with digital cavity controllers implemented in FPGAs. Each controller synchronously receives the computed revolution frequency, used to generate 16 harmonic references. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 907-910
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.907-910
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6.
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Direct Impedance Measurement of the CERN PS Booster Finemet Cavities
/ Albright, Simon (CERN) ; Angoletta, Maria Elena (CERN) ; Barrientos, Diego (CERN) ; Findlay, Alan (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN)
Over CERN’s Long Shutdown 2, the conventional ferrite-loaded cavities of the PS Booster were replaced with wide-band Finemet-loaded cavities. The Finemet cavities bring many operational advantages, but also represent a significant broadband impedance source. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2064-2067
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2064-2067
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7.
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Beam Commissioning of the New Digital Low-Level RF System for CERN’s AD
/ Angoletta, Maria Elena (CERN) ; Albright, Simon (CERN) ; Barrientos, Diego (CERN) ; Findlay, Alan (CERN) ; Jaussi, Michael (CERN) ; Rey, Anthony (CERN) ; Sumiński, Maciej (CERN)
CERN’s Antiproton Decelerator (AD) has been re-furbished to provide reliable operation for the Extra Low ENergy Antiproton ring (ELENA). In particular, AD was equipped with a new digital Low-Level RF (LLRF) system that was successfully commissioned during the summer 2021. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 911-914
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.911-914
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8.
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Achievements and Performance Prospects of the Upgraded LHC Injectors
/ Kain, Verena (CERN) ; Albright, Simon (CERN) ; Alemany-Fernández, Reyes (CERN) ; Angoletta, Maria Elena (CERN) ; Antoniou, Fanouria (CERN) ; Argyropoulos, Theodoros (CERN) ; Asvesta, Foteini (CERN) ; Balhan, Bruno (CERN) ; Barnes, Michael (CERN) ; Barrientos, Diego (CERN) et al.
To provide HL-LHC performance, the CERN LHC injector chain underwent a major upgrade during an almost 2-year-long shutdown. In the first half of 2021 the injectors were gradually re-started with the aim to reach at least pre-shutdown parameters for LHC as well as for fixed target beams. [...]
2022 - 6 p.
- Published in : JACoW IPAC 2022 (2022) 1610-1615
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1610-1615
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9.
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Search for $^{22}$Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes
/ Fougères, Chloé (GANIL ; Argonne, PHY) ; de Oliveira Santos, François (GANIL) ; José, Jordi (Barcelona U. ; Barcelona, IEEC) ; Michelagnoli, Caterina (Laue-Langevin Inst.) ; Clément, Emmanuel (GANIL) ; Kim, Yung Hee (GANIL ; IBS, Daejeon, CENS) ; Lemasson, Antoine (GANIL) ; Guimarães, Valdir (Sao Paulo U.) ; Barrientos, Diego (CERN) ; Bemmerer, Daniel (HZDR, Dresden) et al.
Classical novae are thermonuclear explosions in stellar binary systems, and important sources of $^{26}$Al and $^{22}$Na. While gamma rays from the decay of the former radioisotope have been observed throughout the Galaxy, $^{22}$Na remains untraceable. [...]
arXiv:2212.06302.-
2023-09-05 - 18 p.
- Published in : Nature Commun. 14 (2023) 4536
Fulltext: document - PDF; 2212.06302 - PDF;
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10.
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The AWAKE Run 2 programme and beyond
/ AWAKE Collaboration
Plasma wakefield acceleration is a promising technology to reduce the size of particle accelerators. Use of high energy protons to drive wakefields in plasma has been demonstrated during Run 1 of the AWAKE programme at CERN. [...]
arXiv:2206.06040.-
2022-08-12 - 21 p.
- Published in : Symmetry 14 (2022) 1680
Fulltext: document - PDF; 2206.06040 - PDF;
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