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CERN Accelerating science

SPS and CNGS

Последно добавени:
2024-04-23
06:01
HydRA: A System-on-Chip to Run Software in Radiation-Exposed Areas / Gingold, Tristan (CERN) ; Arias Vázquez, A (CERN) ; Daniluk, Grzegorz (CERN) ; Rizzi, Mattia (PSI, Villigen) ; Serrano, Javier (CERN) ; Włostowski, Tomasz (CERN)
In the context of the High-Luminosity LHC project at CERN, a platform has been developed to support groups needing to host electronics in radiation-exposed areas. This platform, called DI/OT, is based on a modular kit consisting of a System Board, Peripheral Boards and a radiation-tolerant power converter, all housed in a standard 3U crate. [...]
2023 - 5 p. - Published in : JACoW ICALEPCS 2023 (2023) MO4AO02 Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.MO4AO02

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2024-04-23
06:01
Automatic Conditioning of High Voltage Pulsed Magnets / Lolliot, Christophe (CERN) ; Barnes, Michael (CERN) ; Magnin, Nicolas (CERN) ; Monier, Colin (INSA, Villeurbanne) ; Pavis, Steven (CERN)
Fast pulsed kicker magnets are used across the various accelerators of CERN complex to inject and extract the beam. These kicker magnets, powered by high voltage pulsed generators and under vacuum, are prone to electrical breakdown during the pulse. [...]
2023 - 4 p. - Published in : JACoW ICALEPCS 2023 (2023) TUPDP098 Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.TUPDP098

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2024-04-18
12:07
Experimental optimisation of CERN 750MHz proton Radio-Frequency-Quadrupole for Surface Analysis / Marchi, Mariangela (Sapienza Universita e INFN, Roma I (IT))
The present thesis deals with the experimental optimisation of an accelerating structure named ELISA-RFQ. All the experimental work was carried out by the author at the CERN laboratories in Geneva, Switzerland. [...]
CERN-THESIS-2023-384.- 60 p. Fulltext: PDF; External link: Approve this document (restricted)

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2024-04-16
06:50
Interlock Super Agent : Enhancing Machine Efficiency and Performance at CERN’s Super Proton Synchrotron / Veyrunes, Eric (CERN) ; Asko, Anti (CERN) ; Trad, Georges (CERN) ; Wenninger, Jorg (CERN)
In the CERN Super Proton Synchrotron (SPS), finding the source of an interlock signal has become increasingly unmanageable due to the complex interdependencies between the agents in both the beam interlock system (BIS) and the software interlock system (SIS). This often leads to delays, with the inefficiency in diagnosing beam stops impacting the overall performance of the accelerator. [...]
2023 - 3 p. - Published in : JACoW ICALEPCS 2023 (2023) TUPDP103 Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.TUPDP103

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2024-04-12
06:14
Early Fire Detection in High Power Equipment / Pavis, Steven (CERN) ; Carlier, Etienne (CERN) ; Lolliot, Christophe (CERN) ; Magnin, Nicolas (CERN)
Very early fire detection in equipment cabinets containing high power supply sources and power electronic switching devices is needed when building and tunnel fire detection systems may not be well placed to detect a fire until it is well established. Highly sensitive aspirating smoke detection systems which continuously sample the air quality inside equipment racks and give local power interlock in the event of smoke detection, are capable of cutting the source of power to these circuits at a very early stage, thereby preventing fires before they become fully established. [...]
2023 - 5 p. - Published in : JACoW ICALEPCS 2023 (2023) TUPDP096 Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.TUPDP096

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2024-04-11
11:49
Measurement of emittance growth and oscillation spectrum for different damper gains (MD 9407) / Buffat, Xavier (CERN) ; Fornara, Andrea (University of Manchester (GB)) ; Giacomel, Lorenzo (CERN) ; Kostoglou, Sofia (CERN) ; Lannoy, Christophe (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Mounet, Nicolas (CERN) ; Radoslavova, Anna Valeri (Heidelberg University (DE)) ; Sterbini, Guido (CERN) ; Valuch, Daniel (CERN)
The procedure of an experiment aiming at studying the impact of the transverse damper gain on the beam oscillation spectrum and on the emittance growth of colliding beams is described along with the corresponding results. [...]
CERN-ACC-NOTE-2024-0007.
- 2024.
Full text

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2024-04-05
14:26
FCC-ee Machine Detector Interface Alignment System Concepts / Watrelot, Leonard
This thesis is in the framework of the lepton collider part of the Future Circular Collider project, aiming to be the next flagship project at CERN after the High Luminosity upgrade of the Large Hadron Collider, in 2040 [...]
CERN-THESIS-2023-376 - 205 p.


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2024-04-05
04:48
Interpretation of the horizontal beam response near the third integer resonance / Cortés García, E.C. (DESY ; Darmstadt, GSI) ; Niedermayer, P. (Darmstadt, GSI) ; Singh, R. (Darmstadt, GSI) ; Taylor, R. (CERN ; Imperial Coll., London) ; Feldmeier, E. (Heidelberg U.) ; Hun, M. (Heidelberg U.) ; Benedetto, E. (Unlisted, CH) ; Haberer, T. (Heidelberg U.)
The beam response to an external periodic excitation delivers relevant information about the optics, tune distribution and stability of a circulating beam in a storage ring. [...]
arXiv:2404.02576.
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Fulltext

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2024-04-04
12:17
X-Ray Absorption Spectroscopy to Investigate Precipitated Oxides in Nb3Sn Wires With an Internal Oxygen Source / Bovone, G (Geneva U.) ; Buta, F (Geneva U.) ; Lonardo, F (Geneva U.) ; Bonura, M (Geneva U.) ; Borca, C N (PSI, Villigen) ; Huthwelker, T (PSI, Villigen) ; Hopkins, S C (CERN) ; Ballarino, A (CERN) ; Boutboul, T (CERN) ; Senatore, C (Geneva U.)
Internal oxidation can achieve significantly enhanced Jcin Nb3Sn wires, but the mechanism of oxygen transport and oxide precipitation is not fully understood. Our investigation employs X-ray Absorption Near-Edge Structure (XANES) spectroscopy, revealing insights into the oxidation of Zr and its interaction with oxygen in different areas of the wire cross section. [...]
2024 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 6000205

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2024-04-03
14:53
Simulations and measurements to improve the longitudinal quality of fixed target beams at the CERN PS and SPS / Naumenko, Oleksandr
Ensuring the delivery of high quality beams from the accelerators to their assigned experiments is one of the primary tasks of CERN [...]
CERN-THESIS-2024-024 - 85 p.


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