CERN Accelerating science

All CERN Accelerators documents

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2019-06-26
09:35
Effect of Applied Compressive Stress and Impregnation Material on Internal Strain and Stress State in Nb$_3$Sn Rutherford Cable Stacks / Wolf, Felix (CERN) ; Scheuerlein, Christian (CERN) ; Lorentzon, Marcus (CERN) ; Katzer, Balduin (CERN) ; Hofmann, Michael (Forschungsreaktor Munich) ; Gan, Weimin ; Lackner, Friedrich (CERN) ; Schoerling, Daniel (CERN) ; Tommasini, Davide (CERN) ; Savary, Frederic (CERN) et al.
The Nb3Sn superconductor in accelerator magnets must resist high mechanical stresses. In order to better understand the effect of the coil impregnation system on the stresses exerted on the strain-sensitive Nb3Sn superconductor, we have measured the elastic strain evolution in the conductor constituents under externally applied loads. [...]
2019 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2019) 8400605 Fulltext: PDF;
In : Applied Superconductivity Conference 2018, Seattle, United States Of America, 28 Oct - 2 Nov 2018, pp.8400605

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2019-06-25
06:43
A quasi-static model for hot-electron interaction with self-generated magnetic fields / Curcio, A (CERN) ; Volpe, L (Salamanca U.)
The time evolution of the target temperature and ionization degree during the laser-target interaction is of primary importance to understanding the transition between solid and plasma. When the interaction lasts a few tens of femtoseconds, the target resistivity is not well known as in the Spitzer regime, and therefore approximated information must be used from experiments and/or from models. [...]
2019 - Published in : Plasma Phys. Control. Fusion 61 (2019) 055013

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2019-06-25
06:43
Nano-sized Scandia doped dispenser cathode with annular shape for the hollow electron lenses for CERN high luminosity LHC project / Yang, Yunfei (Beijing U. of Tech.) ; Wang, Yiman (Beijing U. of Tech.) ; Liu, Wei (Beijing U. of Tech.) ; Pan, Zhaoliu (Beijing U. of Tech.) ; Li, Junhui (Beijing U. of Tech.) ; Wang, Jinshu (Beijing U. of Tech.) ; Perini, Diego (CERN)
The Large Hadron Collider (LHC) is the world largest and most powerful accelerator for high energy physics. The High Luminosity LHC project (HL- LHC) foresees the construction and installation of important upgrades to increase the efficiency of the LHC machine. [...]
2018 - 2 p. - Published in : 10.1109/IVEC.2018.8391505
In : 19th IEEE International Vacuum Electronics Conference, Monterey, CA, USA, 24 - 26 Apr 2018, pp.319-320

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2019-06-25
06:43
CompactLight Design Study / Latina, Andrea (CERN) ; Aicheler, Markus (Helsinki Inst. of Phys.) ; Aksoy, Avni (Ankara U.) ; Bernhard, Axel (KIT, Karlsruhe) ; Clarke, James (Daresbury) ; Cross, Adrian (Glasgow U.) ; D'Auria, Gerardo (Sincrotrone Trieste) ; Dowd, Rohan (Australia, CSIRO, Clayton) ; Esperante Pereira, Daniel (Valencia U., IFIC) ; Fang, Wencheng (SINAP, Shanghai) et al.
H2020 CompactLight Project aims at designing the next generation of compact hard X-Rays Free-Electron Lasers, relying on very high accelerating gradients and on novel undulator concepts. CompactLight intends to design a compact Hard X-ray FEL facility based on very high-gradient acceleration in the X band of frequencies, on a very bright photo injector, and on short-period/superconductive undulators to enable smaller electron beam energy. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-FLS2018-WEP1WC02 Fulltext: PDF;
In : 60th ICFA Advanced Beam Dynamics Workshop on Future Light Sources, Shanghai, China, 5 - 9 Mar 2018, pp.85-88

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2019-06-25
06:43
Comparative study of two-quadrant DC/DC stage in power supply for superconducting magnets / Coulinge, Emilien (CERN) ; Burnet, Jean-Paul (CERN) ; Pittet, Serge (CERN) ; Dujic, Drazen (Ecole Polytechnique, Lausanne)
To improve the performances of the present European Organization for Nuclear Research (CERN) Large Hadron Collider (LHC), a new family of power supplies for Superconducting Magnets (SCM) is being designed to enhance the operating cycle and recover magnetic-stored energy. Those specific magnets require low-voltage high-current high-precision isolated power supplies. [...]
2018 - 6 p. - Published in : 10.1109/ICIT.2018.8352255
In : 2018 IEEE International Conference on Industrial Technology, Lyon, France, 19 - 22 Feb 2018, pp.652-657

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2019-06-25
06:43
Tracking simulations and optimization of the CLIC injector linac / Bayar, C (Ankara U. ; CERN) ; Doebert, S (CERN) ; Latina, A (CERN) ; Ciftci, A K (Izmir U. Economics, Izmir)
The CLIC positron source has been designed to produce non-polarized positrons for the first stage of CLIC at 380 GeV. In the CLIC positron source, the injector linac is supposed to accelerate positron beams and electron beams simultaneously from 200 MeV after the pre-injectors up to the damping ring energy of 2.86 GeV. [...]
2018 - 5 p. - Published in : AIP Conf. Proc. 1935 (2018) 070004
In : 33rd International Physics Congress of the Turkish Physical Society, Bodrum, Turkey, 6 - 10 Sep 2017, pp.070004

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2019-06-24
11:13
Assessment of the Mechanical Properties of Ultra-High Purity Niobium after Cold Work and Heat Treatment with the HL-LHC Crab Cavities as Benchmark / Gallifa Terricabras, Adria (Universidad de Oviedo (ES)) ; Amorim Carvalho, Alexandre (CERN) ; Aviles Santillana, Ignacio (CERN) ; Barriere, Simon (CERN) ; Calaga, Rama (CERN) ; Cano Pleite, Eduardo (CERN) ; Capatina, Ofelia (CERN) ; Crouvizier, Mickael Denis (CERN) ; Dassa, Luca (CERN) ; Meyer, Mickael Sebastien (CERN) et al.
The High Luminosity Large Hadron Collider (HL-LHC) is the upgrade of the world’s largest particle collider; it will allow the full exploitation of the LHC potential and its operation beyond 2025. [...]
CERN-ACC-2019-0050.
- 2019. - 7 p.
Full text

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2019-06-22
04:03
FCC-ee: Your Questions Answered / Blondel, A. (ed.) (CERN ; U. Geneva (main)) ; Janot, P. (ed.) (CERN) ; Alipour Tehrani, N. (CERN) ; Azzi, P. (INFN, Padua) ; Azzurri, P. (INFN, Pisa) ; Bacchetta, N. (INFN, Padua) ; Benedikt, M. (CERN) ; Blekman, F. (Vrije U., Brussels) ; Boscolo, M. (Frascati) ; Dam, M. (Bohr Inst.) et al.
This document answers in simple terms many FAQs about FCC-ee, including comparisons with other colliders. [...]
arXiv:1906.02693.
- 45 p.
Fulltext

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2019-06-21
17:09
P+ A real time control language user's manual ND10/vA1 / Cailliau, R (CERN) ; Carpenter, B (CERN)
1981. - 142 p.
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2019-06-21
15:45
Beam Instabilities in Circular Particle Accelerators / Metral, Elias (CERN)
The theory of impedance-induced bunched-beam coherent instabilities is reviewed following Laclare's formalism, adding the effect of an electronic damper in the transverse plane. [...]
CERN-ACC-SLIDES-2019-0001.
- 2019. - 165 p.
Full text

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