CERN Accelerating science

Accelerator Physics

Posledne pridané:
SixTrack V and runtime environment / De Maria, R (CERN) ; Andersson, J (CERN) ; Berglyd Olsen, V K (CERN) ; Field, L (CERN) ; Giovannozzi, M (CERN) ; Hermes, P D (CERN) ; Høimyr, N (CERN) ; Kostoglou, S (CERN) ; Iadarola, G (CERN) ; Mcintosh, E (CERN) et al.
SixTrack is a single-particle tracking code for high-energy circular accelerators routinely used at CERN for the Large Hadron Collider (LHC), its luminosity upgrade (HL-LHC), the Future Circular Collider (FCC) and the Super Proton Synchrotron (SPS) simulations. The code is based on a 6D symplectic tracking engine, which is optimized for long-term tracking simulations and delivers fully reproducible results on several platforms. [...]
2020 - 17 p. - Published in : Int. J. Mod. Phys. A 34 (2020) 1942035

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Optics interlock system for the CERN LHC: Implementation and operational experience / Schaumann, M (CERN) ; Calia, A (CERN) ; Fuchsberger, K (CERN) ; Galilée, M A (CERN) ; Hemelsoet, G H (CERN) ; Hostettler, M (CERN) ; Jacquet, D (CERN) ; Makai, J (CERN) ; Wenninger, J (CERN)
In 2016 the luminosity reach of the Large Hadron Collider (LHC) was increased by reducing the β-function in the main collision points below the design value to β*=40  cm. This was possible thanks to a specially matched betatron phase advance between the extraction kickers and some sensitive machine elements that would otherwise risk to be damaged by miskicked beam in case of an asynchronous beam dump. [...]
2020 - 12 p. - Published in : Phys. Rev. Accel. Beams 23 (2020) 022801 Fulltext: PDF;

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Lead evaporation instabilities and failure mechanisms of the micro oven at the GTS-LHC ECR ion source at CERN / Kövener, T (CERN ; U. Hamburg (main)) ; Küchler, D (CERN) ; Toivanen, V A (Jyvaskyla U.)
The GTS-LHC ECR ion source (named after the Grenoble Test Source and the Large Hadron Collider) at CERN provides heavy ion beams for the chain of accelerators from Linac3 up to the LHC for high energy collision experiments and to the Super Proton Synchrotron for fixed target experiments. During the standard operation, the oven technique is used to evaporate lead into the source plasma to produce multiple charged lead ion beams. [...]
2020 - 5 p. - Published in : Rev. Sci. Instrum. 91 (2020) 013320

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Calibration of Fourier domain short coherence interferometer for absolute distance measurements / Montonen, R (Helsinki Inst. of Phys. ; Helsinki U.) ; Kassamakov, I (Helsinki Inst. of Phys. ; Helsinki U.) ; Hæggström, E (Helsinki U.) ; Österberg, K (Helsinki Inst. of Phys. ; Helsinki U.)
We calibrated and determined the measurement uncertainty of a custom-made Fourier domain short coherence interferometer operated in laboratory conditions. We compared the optical thickness of two thickness standards and three coverslips determined with our interferometer to the geometric thickness determined by SEM. [...]
OSA, 2015 - 5 p. - Published in : Appl. Opt. 54 (2015) 4635

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MD4944: Local linear coupling measurement at the IPs / Persson, Tobias Hakan Bjorn (CERN) ; Carlier, Felix Simon (Technische Universiteit Delft (NL)) ; Hofer, Michael (Vienna University of Technology (AT)) ; Maclean, Ewen Hamish (University of Malta (MT)) ; Tomas Garcia, Rogelio (CERN) ; Garcia-Tabares Valdivieso, Ana (Universidad Complutense (ES))
It was observed that a large local linear coupling around IP2 reduced the luminosity during the 2018 ion run. [...]
- 2020. - 9 p.

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Cover not available Diagnostics of short electron bunches with THz detectors in particle accelerators / Steinmann, Johannes Leonhard
Several novel diagnostic systems based on the detection of coherent THz radiation are presented [...]
Karlsruhe : KIT Scientific Publishing, 2019. - 226 p.
Purchase it for me! - CERN library copies
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A Comparative Study of Radiation-Tolerant Fiber Optic Sensors for Relative Humidity Monitoring in High-Radiation Environments at CERN / Berruti, G (CERN ; Sannio U.) ; Consales, M (Sannio U.) ; Borriello, A (CNR, IMCB) ; Giordano, M (CNR, IMCB) ; Buontempo, S (INFN, Naples) ; Makovec, A (Debrecen U.) ; Breglio, G (U. Naples (main)) ; Petagna, P (CERN) ; Cusano, A (Sannio U.)
In this paper, we report a comparative study of fiber optic sensors for applications of relative humidity (RH) monitoring in high-radiation environments. [...]
2014. - 15 p.

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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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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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Electron Beam Characterization with Beam Loss Monitors in AWAKE / Verra, L. (CERN ; Munich, Max Planck Inst. ; Munich, Tech. U.) ; Turner, M. (CERN) ; Gessner, S. (CERN) ; Gschwendtner, E. (CERN) ; Velotti, F. (CERN) ; Muggli, P. (Munich, Max Planck Inst.)
We present a method to measure transverse size and position of an electron or proton beam, close to the injection point in plasma wakefields, where other diagnostics are not available. [...]
- 5 p.

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