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CERN Accelerating science

CERN Document Server 39 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 0.88 sekúnd. 
1.
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
2.
A New Longitudinal Diagnostics System for CERN's Antiproton Machines / Angoletta, M.E. (CERN) ; Barrientos, D. (CERN) ; Bielawski, B. (CERN) ; Jaussi, M. (CERN) ; Niccolini, M. (CERN) ; Rey, A. (CERN) ; Soderen, M. (CERN) ; Suminski, M. (CERN) ; Molendijk, J. (CERN) ; Myklebust, V.R. (CERN) et al.
A new powerful longitudinal diagnostics is being developed for the two CERN's antiproton machines, the Antiproton Decelerator (AD) and the Extra Low ENergy ANtiproton (ELENA) ring. [...]
arXiv:2212.06793 ; LLRF2022/69.
- 5 p.
Fulltext
3.
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
4.
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
5.
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
6.
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
7.
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
8.
ELENA Commissioning / Gamba, Davide (CERN) ; Angoletta, Maria Elena (CERN) ; Belochitskii, P (CERN) ; Bojtár, Lajos (CERN) ; Butin, Francois (CERN) ; Carli, Christian (CERN) ; Dupuy, Bruno (CERN) ; Dutheil, Yann (CERN) ; Eriksson, Tommy (CERN) ; Freyermuth, Pierre (CERN) et al.
The Extra Low ENergy Antiproton storage ring (ELENA) is an upgrade project at the CERN AD (Antiproton Decelerator). ELENA will further decelerate the 5.3 MeV antiprotons coming from the AD down to 100 keV. [...]
2020 - 6 p. - Published in : 10.18429/JACoW-NAPAC2019-WEYBB1 Fulltext: PDF;
In : 3rd North American Particle Accelerator Conference (NAPAC), Lansing, MI, USA, 2 - 6 Sep 2019, pp.626-631
9.
Beam-induced heat loads on the LHC arc beam screens with different beam and machine configurations: experiments and comparison against simulations / Iadarola, Giovanni (CERN) ; Skripka, Galina (Joint Institute for Nuclear Research (RU)) ; Albert, Markus (CERN) ; Amorim, David (Universite Grenoble-Alpes (FR)) ; Andujar, Oscar (CERN) ; Antipov, Sergey (CERN) ; Arduini, Gianluigi (CERN) ; Argyropoulos, Theodoros (CERN) ; Bradu, Benjamin (CERN) ; Bartosik, Hannes (CERN) et al.
Electron cloud (e-cloud) effects are among the main performance limitations for the operation of the Large Hadron Collider (LHC) with 25 ns bunch spacing. [...]
CERN-ACC-NOTE-2019-0057.
- 2019. - 50 p.
Full text
10.
Initial longitudinal diagnostics for ELENA’s commissioning / Angoletta, Maria Elena (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN)
CERN’s Extra Low ENergy Antiproton (ELENA) ring underwent its second full year of beam commissioning in 2018 and succeeded in decelerating more than 1 E7 antiprotons to extraction energy. [...]
CERN-ACC-Note-2019-0051.
- 2019.
Full text

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