CERN Accelerating science

SPS and CNGS

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2019-07-24
06:03
Simulation of hydrodynamic tunneling induced by high-energy proton beam in copper by coupling computer codes / Nie, Y (CERN) ; Fichera, C (CERN) ; Mettler, L (CERN) ; Carra, F (CERN) ; Schmidt, R (CERN) ; Tahir, N A (Darmstadt, GSI) ; Bertarelli, A (CERN) ; Wollmann, D (CERN)
The design of machine protection systems for high-energy accelerators with high-intensity beams requires analyzing a large number of failures leading to beam loss. One of the most serious failures is an accidental impact of a large number of bunches at one location, for example, due to a deflection of the particle beams by the extraction kicker magnets with the wrong strength. [...]
2019 - 16 p. - Published in : Phys. Rev. Accel. Beams 22 (2019) 014501 Fulltext from Publisher: PDF;

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2019-07-24
06:03
Experiment exposing refractory metals to impacts of 440 GeV$/c$ proton beams for the future design of the CERN antiproton production target: Experiment design and online results / Torregrosa Martin, Claudio (CERN ; Valencia, Polytechnic U.) ; Perillo-Marcone, Antonio (CERN) ; Calviani, Marco (CERN) ; Gentini, Luca (CERN) ; Butcher, Mark (CERN) ; Muñoz-Cobo, José-Luis (Valencia, Polytechnic U.)
The HRMT27-RodTarg experiment employed the HiRadMat facility at CERN to impact intense 440 GeV proton beams onto thin rods 8 mm in diameter, 140 mm in length, and made of high-density materials such as Ir, W, Ta, Mo, and alloys. The purpose of the experiment was to reduce uncertainties on the CERN antiproton target material response and assess the material selection for its future redesign. [...]
2019 - 16 p. - Published in : Phys. Rev. Accel. Beams 22 (2019) 013401 Fulltext from Publisher: PDF;

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2019-07-17
12:06
Numerical and experimental studies to model and reduce the impedance in the CERN Super Proton Synchrotron (SPS) / Beck, Mario
Intensity-driven beam instabilities are studied in simulations with a refined impedance model and in experimental measurements for this thesis. The High Luminosity Large Hadron Collider (HL-LHC) project at CERN aims for an increase in the integrated luminosity in the Large Hadron Collider (LHC). [...]
CERN-THESIS-2018-433.- 181 p. Fulltext: PDF; External link: Approve this document (restricted)

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2019-07-17
09:29
Q drift during debunching time / Meer, S van der
CERN-SPS-Tech-Note-76-077-APS ; SPS-PS-Int-Note-76-77.
- 1976. - 5 p.
Full text

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2019-07-08
15:48
Cover not available Synchrotron light sources and free-electron lasers : accelerator physics, instrumentation and science applications / Jaeschke, Eberhard (ed.) ; Khan, Shaukat (ed.) ; Schneider, Jochen (ed.) ; Hastings, Jerome (ed.)
Hardly any other discovery of the nineteenth century did have such an impact on science and technology as Wilhelm Conrad Röntgen’s seminal find of the X-rays [...]
Cham : Springer, 2019.

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2019-07-06
05:04
Layouts for fixed-target experiments and dipole moment measurements of short-living baryons using bent crystals at the LHC / Mirarchi, D. (CERN ; Manchester U.) ; Fomin, A.S. (CERN ; Kharkov, KIPT) ; Redaelli, S. (CERN) ; Scandale, W. (CERN)
Several studies are on-going at CERN in the framework of the Physics Beyond Collider study group, with main aim of broadening the physics research spectrum using the available accelerator complex and infrastructure. [...]
arXiv:1906.08551.
- 17 p.
Fulltext

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2019-07-04
10:31
The Superconducting Super Proton Synchrotron / Dyks, Luke Aidan
In order to continue pushing the frontiers of high energy physics, a future circular hadron collider, FCC-hh has been proposed [...]
CERN-THESIS-2019-072 - 71 p.

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2019-07-03
06:10
The ENUBET narrow band neutrino beam / Pupilli, F (INFN, Padua) ; Acerbi, F (Fond. Bruno Kessler, Povo ; TIFPA-INFN, Trento) ; Ballerini, G (INFN, Milan Bicocca ; Insubria U., Como) ; Bonesini, M (INFN, Milan Bicocca) ; Brizzolari, C (INFN, Milan Bicocca ; Insubria U., Como) ; Brunetti, G (INFN, Padua) ; Calviani, M (CERN) ; Carturan, S (INFN, Legnaro) ; Catanesi, M G (INFN, Bari) ; Cecchini, S (INFN, Bologna) et al.
ENUBET has been conceived to monitor positrons from $K_{e3}$ decays in conventional neutrino beam decay tunnels in order to provide a direct determination of the $\nu_e$ flux at the source, paving the way to a measurement of electron neutrino cross section with 1% precision. Since 2016 remarkable results on the prototyping and testing of the tunnel instrumentation for positron tagging have been achieved, as well as on the design and simulation of the proton extraction scheme, the focusing system and the meson transfer line. [...]
SISSA, 2019 - 5 p. - Published in : PoS NOW2018 (2018) 030 Fulltext: PDF; External links: 00001 Scheme of the baseline UCM. It is composed by five, 15 mm thick, iron layers interleaved by 5 mm thick plastic scintillator tiles. The total length of the module (10 cm) and its transverse size (3 $\times$ 3 cm$^{2}$) corresponds to 4.3 $X_{0}$ and 1.7 Moliere radii, respectively; 00002 Pictures of the polysiloxane-based (a) and lateral scintillation light readout (b) calorimeter prototypes.; 00000 Pictures of the polysiloxane-based (a) and lateral scintillation light readout (b) calorimeter prototypes.; PoS server
In : Neutrino Oscillation Workshop 2018, Ostuni, Brindisi, Italy, 9 - 16 Sep 2018, pp.030

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2019-07-03
06:10
The SPS and an alternative ring design as pre-booster of FCC $e^+e^−$ injector / Etisken, O (CERN ; Ankara U.) ; Papaphilippou, Y (CERN) ; Antoniou, F (CERN) ; Ciftci, A K (Izmir U. Economics, Izmir)
The FCC-e+ e− injector complex needs to produce and to transport a high-intensity e+/e− beam at a fast repetition rate for topping up the collider at its collision energy. Two different options are under consideration as pre-accelerator before the bunches are transferred to the high-energy booster: using the existing SPS and a completely new ring. [...]
2018 - 6 p. - Published in : AIP Conf. Proc. 2042 (2018) 020043
In : 34th International Physics Congress of the Turkish Physical Society, Bodrum, Turkey, 5 - 9 Sep 2018, pp.020043

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2019-07-02
06:09
Analysis and Evaluation of the CERN Reference Systems / Ibarrola, N (CERN) ; Jones, M (CERN)
The work that will be presented has been driven mainly by the Future Circular Collider (FCC) study, a proposed next-generation particle collider with a circumference of 100 km and the aim of reaching collision energies of 100 T e V. The new machine would be located in Swiss and French territories, and it would cover more than 10 times the area of the existing LHC facilities. [...]
2016 - 4 p. - Published in : (2016) Fulltext: PDF;
In : International Workshop on Accelerator Alignment, Grenoble, France, 3 - 7 Oct 2016

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