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Specifications and Status of the New Electron Cooler for the CERN Antiproton Decelerator (AD)
/ Rossi, Adriana (CERN) ; Accettura, Carlotta (CERN) ; Andreazza, William (CERN) ; Bollazzi, Alessio (CERN) ; Cenede, Jean (CERN) ; Chritin, Nicolas (CERN) ; Coutron, Yannick (CERN) ; Ferreira Somoza, Jose (CERN) ; Frassier, Alexandre (CERN) ; Gamba, Davide (CERN) et al.
A new electron cooler for the Antiproton Decelerator (AD) is being designed at CERN, and will replace the current device (in operation for more than 40 years), during the next Long Shutdown (2026-2028). The functional specifications [ref. [...]
2024 - 6 p.
- Published in : JACoW COOL 2023 (2024) 5-10
Fulltext: PDF;
In : 14th International Workshop on Beam Cooling and Related Topics (COOL '23), Montreux, Switzerland, 8 - 13 Oct 2023, pp.5-10
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ELENA - From Commissioning to Operation
/ Ponce, Laurette (CERN) ; Bojtár, Lajos (CERN) ; Carli, Christian (CERN) ; Dupuy, Bruno (CERN) ; Dutheil, Yann (CERN) ; Freyermuth, Pierre (CERN) ; Gamba, Davide (CERN) ; Jørgensen, Lars (CERN) ; Lefort, Bertrand (CERN) ; Pasinelli, Sergio (CERN)
In 2021 the Extra Low ENergy Antiproton ring (ELENA) moved from commissioning into the physics production phase providing 100 keV antiprotons to the newly connected experiments paving the way to an improved trapping efficiency by one to two orders of magnitude compared to the AD era. After recalling the major work undertaken during the CERN Long Shutdown 2 (2019-2020) in the antiproton deceleration complex, details will be given on the ELENA ring and the new electrostatic transfer line beam commissioning using an ion source. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2391-2394
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2391-2394
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4.
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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
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AD/ELENA Electron Cooling Experience During and after CERNs Long Shutdown (LS2)
/ Gamba, Davide (CERN) ; Bojtár, Lajos (CERN) ; Carli, Christian (CERN) ; Dupuy, Bruno (CERN) ; Frassier, Alexandre (CERN) ; Jørgensen, Lars (CERN) ; Ponce, Laurette (CERN) ; Tranquille, Gerard (CERN)
Electron cooling is a key ingredient of the Antimatter Factory at CERN, now composed of the AD and ELENA rings, both featuring an electron cooler. After the successful commissioning of the ELENA ring and electron cooling with antiprotons in 2018, the facility was shut down for the CERN long shutdown (LS2). [...]
2021 - 6 p.
- Published in : JACoW COOL 2021 (2021) 36-41
Fulltext: PDF;
In : International Workshop on Beam Cooling and Related Topics (COOL 2021), Novosibirsk, Russian Federation, 1 - 5 Nov 2021, pp.36-41
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ELENA Commissioning and Status
/ Carli, Christian (CERN) ; Angoletta, Maria Elena (CERN) ; Bartmann, Wolfgang (CERN) ; Bojtár, Lajos (CERN) ; Butin, Francois (CERN) ; Dupuy, Bruno (CERN) ; Dutheil, Yann (CERN) ; Fraser, Matthew (CERN) ; Freyermuth, Pierre (CERN) ; Gamba, Davide (CERN) et al.
The Extra Low ENergy Antiproton ring ELENA is a small synchrotron recently constructed and commissioned to decelerate antiprotons injected from the Antiproton Decelerator AD with a kinetic energy of 5.3 MeV down to 100 keV. Controlled deceleration in the synchrotron, equipped with an electron cooler to reduce losses and generate dense bunches, allows the experiments, typically capturing the antiprotons in traps and manipulating them further, to improve the trapping efficiency by one to two orders of magnitude. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 598-601
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.598-601
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The CERN-ELENA Electron Cooler Magnetic System
/ Tranquille, Gerard (CERN) ; Jørgensen, Lars (CERN) ; Luckin, David (Tesla Engineering, Storrington) ; Warner, Rory (Tesla Engineering, Storrington)
Phase space compression of the antiproton beam in ELENA will be performed by a new electron cooler the performance of which is greatly influenced by the properties of the electron beam. Careful design of the electron gun electrodes, the efficient recuperation of the electrons in the collector and the quality of the guiding magnetic field ensure an optimal performance of the cooler. [...]
CERN-ACC-2018-104.-
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-TUPAF056
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.TUPAF056
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The ATHENA positron accumulator
/ van der Werf, D P (Swansea U.) ; Jørgensen, L V (Swansea U.) ; Watson, T L (Swansea U.) ; Charlton, M (Swansea U.) ; Collier, M J T (Swansea U.) ; Doser, M (Swansea U.) ; Funakoshi, R (Swansea U.)
A positron accumulator has been constructed for use in the ATHENA anti-hydrogen experiment in CERN. Employing a solid neon moderator plated on to a 50 mCi$^{22}$Na source, a low energy beam of $7 \times 10^6$ positrons/s is guided into a 0.14 T magnetic field where they are trapped and cooled down to room temperature using nitrogen as a buffer gas. [...]
2002 - 5 p.
- Published in : Appl. Surf. Sci. 194 (2002) 312-316
In : 9th International Workshop on Slow Positron Beam Techniques for Solids and Surfaces, Dresden, Germany, 16 - 22 Sep 2001, pp.312-316
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10.
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ELENA - From Installation to Commissioning
/ Eriksson, Tommy (CERN) ; Bartmann, Wolfgang (CERN) ; Belochitskii, P (CERN) ; Bojtár, Lajos (CERN) ; Breuker, Horst (CERN) ; Butin, Francois (CERN) ; Carli, Christian (CERN) ; Dupuy, Bruno (CERN) ; Freyermuth, Pierre (CERN) ; Jørgensen, Lars (CERN) et al.
ELENA (Extra Low ENergy Antiproton ring) is an upgrade project at the CERN AD (Antiproton Decelerator). The smaller ELENA ring will further decelerate 5.3 MeV antiprotons from the AD ring down to 100 keV using electron cooling to obtain good deceleration efficiency and dense beams. [...]
CERN-ACC-2017-268.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-WEPVA034
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.WEPVA034
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