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SPS and CNGS

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2020-02-18
18:42
Anomaly detection for the injection kickermagnets of the CERN Large HadronCollider / Dewitte, Thiebout Thomas
Reliability, availability and maintainability are parameters that determine if a large-scale accelerator system can be operated in a sustainable and cost effective manner. Beam transfer equipment such as kicker systems are critical components with potential significant impact on the global performance of the entire machine complex [...]
CERN-THESIS-2019-294.- 85 p. Fulltext: PDF; External link: Approve this document (restricted)

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2020-02-18
09:18
Q-Measurement in the SPS / Mills, W P C
LabII-CO-Int-BM-PM-73-3 ; CERN-LabII-CO-Int-BM-PM-73-3. - 1973. - 15 p.
Full text

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2020-02-18
08:22
Improvement of the CERN SPS electrostatic septa ion traps / Balhan, B (CERN) ; Barlow, R A (CERN) ; Borburgh, J (CERN) ; Raffaele, G (Bari Polytechnic)
At CERN, the SPS synchrotron is equipped with a slow extraction channel towards the fixed target beam lines in the North Area This channel includes five consecutive electrostatic septa, where the field free region and the active high field region are separated by an array of tungsten-rhenium wires. The field-free region provides for the circulating beam, while the high field region is used to deflect the extracted beam. [...]
2016 - 4 p. - Published in : 10.1109/DEIV.2016.7764034
In : The 27th International Symposium on Discharges and Electrical Insulation in Vacuum (27th ISDEIV), Suzhou, China, 18 - 23 Sep 2016, pp.7764034

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2020-02-13
08:12
Reduction of 400  GeV/c slow extraction beam loss with a wire diffuser at the CERN Super Proton Synchrotron / Goddard, Brennan (CERN) ; Balhan, Bruno (CERN) ; Borburgh, Jan (CERN) ; Esposito, Luigi (CERN) ; Fraser, Matthew Alexander (CERN) ; Jorat, Louise (CERN) ; Kain, Verena (CERN) ; Lolliot, Christophe (CERN) ; Stoel, Linda Susan (CERN) ; van Trappen, Pieter (CERN) et al.
Slow extraction of a quasicontinuous flux of high-energy protons is an important requirement for many high-energy physics experiments. This extraction type is associated with an unavoidable beam loss due to scattering on the thin septum element. [...]
2020 - 13 p. - Published in : Phys. Rev. Accel. Beams 23 (2020) 023501 Fulltext: PDF;

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2020-02-13
08:12
Proton-Beam-Driven Plasma Acceleration / Adli, Erik (Oslo U.) ; Muggli, Patric (Munich, Max Planck Inst.)
We describe the main ideas, promises and challenges related to proton-driven plasma wakefield acceleration. Existing high-energy proton beams have the potential to accelerate electron beams to the TeV scale in a single plasma stage. [...]
WS, 2016 - 20 p. - Published in : Rev. Accel. Sci. Technol. 09 (2016) 85-104 Published fulltext: PDF;

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2020-02-08
04:50
Numerical simulations of electron-cloud build up in circular accelerators in the presence of multimode-distribution beams / Cui, X. (Beijing, Inst. High Energy Phys.) ; Gilardoni, S. (CERN) ; Giovannozzi, M. (CERN) ; Iadarola, G. (CERN)
Electron cloud effects have become one of the main performance limitations for circular particle accelerators operating with positively-charged beams. [...]
arXiv:2001.07187. - 10 p.
Fulltext

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2020-02-07
16:41
PS Ripple Study during the 2019 Fermilab Booster Experiment / Schmidt, Frank (CERN) ; Eldred, Jeffrey (FERMILAB) ; Jensen, Chris (FERMILAB) ; Larson, Jeffrey (FERMILAB) ; Triplett, Kent A (FERMILAB)
S.02 has been one of the experiments of the 2019 Fermilab Booster Studies. [...]
CERN-ACC-2020-0007. - 2020. - 25 p.
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2020-02-04
11:13
FLUKA simulations of the operational injection losses in TI8/IR8 / Ciccotelli, Alessia (CERN) ; Bracco, Chiara (CERN) ; Cerutti, Francesco (CERN) ; Esposito, Luigi Salvatore (CERN) ; Fraser, Matthew Alexander (CERN) ; Kain, Verena (CERN) ; Mereghetti, Alessio (CERN) ; Velotti, Francesco Maria (CERN)
This document describes the FLUKA studies of SPS-to-LHC injection losses. [...]
CERN-ACC-NOTE-2020-0012. - 2020. - 25 p.
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2020-02-04
08:14
First Operation for Stochastic Cooling of P-Bars in the CERN AD Using Optical Delay Notch Filter and Plans 2021 Operation / Höfle, Wolfgang (CERN) ; Arnaudon, Luca (CERN) ; Bjørsvik, Endre (CERN) ; Caspers, Fritz (CERN) ; Eriksson, Tommy (CERN) ; Louwerse, Reinier (CERN) ; Myklebust, Vebjorn Roed (CERN)
As part of the consolidation of the stochastic coolingsystem of the CERN Antiproton Decelerator a notch filter with optical delay lines has been developed. During the 2018 run of AD a notch filter with optical delay lines for the longitudinal stochastic cooling at 3.5 GeV/c was successfully tested with beam for the first time. [...]
2019 - 5 p. - Published in : 10.18429/JACoW-COOL2019-MOY01 Fulltext: 10.18429_JACoW-COOL2019-MOY01 - PDF; moy01 - PDF;
In : International Workshop on Beam Cooling and Related Topics, Novosibirsk, Russian Federation, September 23 - 27, 2019, pp.MOY01

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2020-01-31
06:17
Noninvasive Micrometer-Scale Particle-Beam Size Measurement Using Optical Diffraction Radiation in the Ultraviolet Wavelength Range / Bergamaschi, M (CERN ; Royal Holloway, U. of London) ; Aryshev, A (KEK, Tsukuba) ; Karataev, P (Royal Holloway, U. of London) ; Kieffer, R (CERN ; Royal Holloway, U. of London) ; Lefevre, T (CERN) ; Mazzoni, S (CERN) ; Terunuma, N (KEK, Tsukuba) ; Yang, R (LPGP, Orsay)
We present recent achievements in the application of optical diffraction radiation (ODR) to the measurement of the transverse beam size of a 1.3 GeV micrometer-size electron beam performed with an instrument installed in the extended extraction line of the KEK Accelerator Test Facility. ODR is a recent technique for the measurement of the transverse size and emittance of highly relativistic particle beams. [...]
2020 - 13 p. - Published in : Phys. Rev. Applied 13 (2020) 014041 Fulltext: PDF;

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