CERN Accelerating science

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Stability and lifetime study of carbon nanotubes as cold electron field emitters for electron cooling in the CERN extra low energy antiproton ring / Galante, Bruno (Cockcroft Inst. Accel. Sci. Tech. ; U. Liverpool (main) ; CERN) ; Tranquille, Gerard Alain (CERN) ; Himmerlich, Marcel (CERN) ; Welsch, Carsten Peter (Cockcroft Inst. Accel. Sci. Tech. ; U. Liverpool (main)) ; Resta López, Javier (Cockcroft Inst. Accel. Sci. Tech. ; U. Liverpool (main) ; GACE-ICMUV)
Electron cooling is a fundamental process to guarantee the beam quality in low energy antimatter facilities. In extra low energy antiproton, the electron cooler reduces the emittance blowup of the antiproton beam and thus delivers a focused and bright beam to the experiments at the unprecedentedly low kinetic energy of 100 keV. [...]
2021 - 13 p. - Published in : Phys. Rev. Accel. Beams 24 (2021) 113401 Fulltext: PDF;

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A Method for Aligning the Phases of C10 Cavities in the AD / Albright, Simon (CERN)
The C10 cavities in the AD are used to rotate the injected beam distribution in the longitudinal phase space and then adiabatically debunch it, hence significantly reducing the momentum spread compared injection. [...]
- 2021. - 4 p.
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Rydberg Excitation of Hydrogen for studies towards Antihydrogen Deexcitation / Kulkarni, Pranav Nitin
The CERN Antiproton Decelerator (AD) facility hosts antimatter experiments, which produce antihydrogen in a wide range of Rydberg states [...]
CERN-THESIS-2021-147 - 81 p.

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Development of an Electrostatic Ion Beam Trap for Laser Spectroscopy of Short-lived Radionuclides / Lagaki, Varvara
Due to its high accuracy and resolution, collinear laser spectroscopy (CLS) is a powerful tool to measure nuclear ground state properties such as nuclear spins, electromagnetic moments and mean-square charge radii of short-lived radionuclides [...]
CERN-THESIS-2021-120 -

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A compact RFQ cooler buncher for CRIS experiments / Cooper, B S (Manchester U.) ; A Perrett, H (Manchester U.) ; Ricketts, C M (Manchester U.) ; Read, C (Manchester U.) ; Edwards, G (Manchester U.) ; Flanagan, K T (Manchester U.) ; Billowes, J (Manchester U.) ; Binnersley, C L (Manchester U.) ; Bissell, M L (Manchester U.) ; Cocolios, T E (Leuven U.) et al.
A compact radio frequency cooler buncher (RFQCB) is currently in development between The University of Manchester, KU Leuven and CERN. The device will be installed as part of the Collinear Resonance Ionisation Spectroscopy (CRIS) experiment at the Isotope separator On-line device (ISOLDE) at CERN. [...]
2019 - 8 p. - Published in : Hyperfine Interact. 240 (2019) 52 Fulltext from Publisher: PDF;
In : 7th International Conference on Trapped Charged Particles and Fundamental Physics, Takamatsu, Japan, 30 Sep - 5 Oct 2018, pp.52

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Self-Modulation Development of a Proton Bunch in Plasma / Bachmann, Anna-Maria
CERN-THESIS-2021-094 - : mediaTUM, 2021-07-16.

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Development of a Thermal Response Model for Wire Grid Profile Monitors and Benchmarking to CERN LINAC4 Experiments / Navarro Fernandez, Araceli (CERN) ; Roncarolo, Federico (CERN) ; Sapinski, Mariusz (TERA, Novara)
The operation of wire grids as beam profile monitors, both in terms of measurement accuracy and wire integrity, can be heavily affected by the thermal response of the wires to the energy deposited by the charged particles. A comprehensive model to describe such interaction has been implemented including beam induced heating, all relevant cooling processes and the various phenomena contributing to the wire signal such as secondary emission and H⁻ electron scattering. [...]
2020 - 4 p. - Published in : 10.18429/JACoW-IBIC2020-TUPP35 Fulltext: PDF;
In : 9th International Beam Instrumentation Conference, Online, 14 - 18 Sep 2020, pp.TUPP35

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Extended anomaly detection and breakdown prediction in LINAC 4’s RF power source output / Donon, Yann (Samara U.) ; Kupriyanov, Alexander (Samara U.) ; Kirsh, Dmitriy (Samara U.) ; Meglio, Alberto Di (CERN) ; Paringer, Rustam (Samara U.) ; Rytsarev, Igor (Samara U.) ; Serafimovich, Pavel (Unlisted, RU) ; Syomic, Sergey (Samara U.)
Linear accelerators are complex machines that can face significant periods of downtime due to anomalies and the subsequent failure of one or more components. The need for reliable linear accelerator operations (LINAC) is critical to the spread of this method in the medical environment. [...]
2020 - 7 p. - Published in : 10.1109/ITNT49337.2020.9253296
In : VI International Conference on Information Technology and Nanotechnology (ITNT 2020), Samara, Russia, 26 - 29 May 2020

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Space charge and lattice driven resonances at the CERN injectors / Asvesta, Foteini
The present dissertation focuses on the space charge phenomena in the presence of betatron resonances in the CERN Injectors and in particular the Proton Synchrotron (PS) and the Proton Synchrotron Booster (PSB) [...]
CERN-THESIS-2020-344 -

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Beam Loss Reduction by Barrier Buckets in the CERN Accelerator Complex / Vadai, Mihaly
For a future intensity increase of the fixed-target beam in the accelerator complex at CERN, new techniques to reduce beam loss are required [...]
CERN-THESIS-2021-043 -

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