CERN Accelerating science

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2023-12-04
11:47
Conceptual design study for a dedicated low-energy diagnostics line at Linac3 / Bellodi, Giulia (CERN) ; Bodart, Dominique (CERN) ; Cravero, Jean-Marc (CERN) ; Etxebarria Erdoiza, Jone (CIEMAT - Centro de Investigaciones Energéticas Medioambientales y Tec. (ES)) ; Kuchler, Detlef (CERN) ; Mahner, Edgar (CERN) ; Roncarolo, Federico (CERN) ; Scrivens, Richard (CERN) ; Valerio Lizarraga, Cristhian Alfonso (Universidad Autonoma de Sinaloa (MX))
A low-energy diagnostics upgrade of Linac3 has been studied in the last couple of years to allow a more precise characterization of the beam properties at extraction from the source, currently impeded by a complete lack of measuring devices in the first ~6 m of the accelerator layout. [...]
CERN-ACC-NOTE-2023-0023.
- 2023.

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2023-11-29
17:20
LHC Triplet Task Force Report / Arduini, Gianluigi (CERN) ; Bradu, Benjamin (CERN) ; Brodzinski, Krzysztof (CERN) ; Bruce, Roderik (CERN) ; Cerutti, Francesco (CERN) ; Ciccotelli, Alessia (University of Manchester (GB)) ; Deferne, Guy (CERN) ; Fartoukh, Stephane (CERN) ; Fessia, Paolo (CERN) ; Garion, Cedric (CERN) et al.
The excellent performance of the Large Hadron Collider (LHC) and the extension of Run 3 by one year have led to a significant increase of the expected integrated luminosity by the end of its operation and before the start of the High Luminosity LHC (HL-LHC), exceeding the design LHC integrated luminosity of 300 fb−1 for which the final focus region has been designed. [...]
CERN-ACC-2023-0004.
- 2023. - 95 p.
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2023-11-29
14:07
Cable Measurement Methods for Kicker Systems / Stadlbauer, Tobias (CERN) ; Caspers, Fritz (European Scientific Institute (FR))
Precise measurement of the characteristic impedance and insertion loss of kicker cables are important to guarantee the required kicker system performance. [...]
CERN-ACC-NOTE-2023-0022.
- 2023. - 46 p.
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2023-11-22
11:39
Measurements of the Dielectric Properties of a Ferroelectric Ceramic for Use in a Fast Reactive Tuner / FREEMIRE, Ben (Euclid TechLabs)
A FerroElectric Fast Reactive Tuner (FE-FRT) for superconducting radio frequency cavities offers several advantages over conventional mechanical tuners, including faster reaction time, no moving parts, and a wide tuning range. [...]
CERN-ACC-NOTE-2020-0070.
- 2020. - 32 p.
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2023-11-22
11:29
Analytic Computation of a Ferro-Electric Fast Reactive Tuner / Ben-Zvi, Ilan ; Macpherson, Alick (CERN) ; Castilla Loeza, Alejandro (Lancaster University (GB)) ; Shipman, Nicholas (Lancaster University (GB))
An analytic solution using the MapleÒ application [1] of a Ferroelectric Fast Reactive Tuner (FE- FRT) is presented. [...]
CERN-ACC-NOTE-2023-0021.
- 2023. - 36 p.
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2023-11-16
16:44
MOSFET Selection for a 18ka modular power converter for HL-LHC inner triplet / Wassinger, Nicolas ; Maestri, Sebastian (National Scientific and Technical Research Council (AR)) ; Garcia Retegui, Rogelio (ICYTE, COCINET-UNMDP, Mar del Plata, Argentina) ; Funes, Miguel (ICYTE, COCINET-UNMDP, Mar del Plata, Argentina) ; Antoszczuk, Pablo Daniel (CERN) ; Pittet, Serge (CERN)
The upgrade of the Large Hadron Collider (LHC) at CERN towards the High Luminosity-LHC (HL-LHC) presents different challenges, among them, the upgrade of the power converters associated to the inner triplet magnets to reach the required rated current of 18kA. In order to reach this current and to accomplish the stringent requirements associated to this kind of application, even under a fault scenario, redundancy and modularity are foreseen in the converter design. [...]
CERN-ACC-2023-0003.- Geneva : CERN, 2023 - 13 p. - Published in : Power Electronic Devices and Components (PEDC) 6 (2023) NONE

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2023-11-16
11:04
Availability Targets Scaled According to Assurance Complexity in the FCC-ee / Heron, Jack (CERN) ; Felsberger, Lukas (CERN) ; Wollmann, Daniel (CERN) ; Uythoven, Jan (CERN) ; Rodriguez Mateos, Felix (CERN)
The Future Circular Collider (FCC) is the leading proposal for the next generation of energy- frontier particle accelerators. [...]
CERN-ACC-NOTE-2023-0020.
- 2023. - 11 p.
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2023-11-16
11:00
Machine Protection and Availability in the FCC-ee / Heron, Jack (CERN) ; Felsberger, Lukas (CERN) ; Hernalsteens, Cedric (CERN) ; Wiesner, Christoph (CERN) ; Wollmann, Daniel (CERN) ; Uythoven, Jan (CERN) ; Rodriguez Mateos, Felix (CERN)
The FCC-ee will combine high stored beam energy with small vertical emittance. [...]
CERN-ACC-NOTE-2023-0019.
- 2023. - 19 p.
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2023-11-06
09:16
MD6864 — Decapole studies at injection / Le Garrec, Mael (Goethe University Frankfurt (DE)) ; Carlier, Felix Simon (CERN) ; Dilly, Joschua Werner (CERN) ; Ferrentino, Vittorio (Universita di Napoli Federico II (IT)) ; Maclean, Ewen Hamish (CERN) ; Paraschou, Konstantinos (CERN) ; Tomas Garcia, Rogelio (CERN)
Chromaticity and amplitude detuning measurements were performed in the past at injection. [...]
CERN-ACC-NOTE-2023-0018.
- 2023.
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2023-10-23
12:03
First comments on the interaction of synchrotron light with the electrostatic septa of the SPS / Dubois, R ; Weisse, E ; Keizer, R L
CERN-SPS-Tech-Note-88-005-ABT ; SPS-ABT-Tech-Note-88-05.
- 1988. - 34 p.
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