CERN Accelerating science

ATS Reports

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2015-05-18
10:10
Study of Power Converter Topologies with Energy Recovery and grid power flow control Part B: boost converter with energy storage / Rogelio, Garcia Retegui (Laboratorio de Instrumentacion y Control (LIC)) ; Sebastian, Maestri (Laboratorio de Instrumentacion y Control (LIC)) ; Gustavo, Uicich (Laboratorio de Instrumentacion y Control (LIC)) ; Mario, Benedetti (Laboratorio de Instrumentacion y Control (LIC)) ; Gilles, Le Godec (Power Converters Group, Technology Department, European Organization for Nuclear Research (CERN)) ; Konstantinos, Papastergiou (Power Converters Group, Technology Department, European Organization for Nuclear Research (CERN))
In the framework of a Transfer line (TT2) Consolidation Programme, a number of studies on Energy cycling have been commissioned. [...]
CERN-ACC-2015-0049.
- 2015. - 34 p.
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2015-04-29
16:28
RF Design of the TW Buncher for the CLIC Drive Beam Injector / Shaker, H (IPM)
The CLIC is based on the two beams concept that one beam (drive beam) produces the required RF power to accelerate another beam (main beam). [...]
CERN-ACC-2015-0039 ; CLIC-Note-1050.
- 2015. - 21 p.
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2015-04-23
14:09
Studies on heavy ion losses from collimation cleaning at the LHC / Hermes, P D (CERN ; U. Munster) ; Bruce, R (CERN) ; Jowett, J M (CERN) ; Redaelli, S (CERN) ; Salvachua, B M (CERN) ; Valentino, G (CERN) ; Wollmann, D (CERN)
The LHC collimation system protects superconducting magnets from beam losses. [...]
CERN-ACC-2015-0037.
- 2014. - 5 p.
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2015-04-15
09:38
High-Energy Physics Strategies and Future Large-Scale Projects / Zimmermann, F (CERN)
We sketch the actual European and international strategies and possible future facilities. [...]
CERN-ACC-2015-0034.
- 2014. - 9 p.
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2015-03-20
10:04
Optics measurement algorithms and error analysis for the proton energy frontier / Langner, A (CERN) ; Tomas, R (CERN)
Optics measurement algorithms have been improved in preparation for the commissioning of the LHC at higher energy, i.e., with an increased damage potential. [...]
CERN-ACC-2015-0031.
- 2015. - 10 p.
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2015-02-24
10:08
Study of Power Converter Topologies with Energy Recovery and grid power flow control. Part A: 2-quadrant converter with energy storage. / Maestri, S (Mar del Plata U.) ; Garcia Retegui, R (Mar del Plata U.) ; Uicich, G (Mar del Plata U.) ; Benedetti, M (Mar del Plata U.) ; Le Godec, G (CERN) ; Papastergiou, K (CERN)
In the framework of a Transfer line (TT2) Consolidation Programme, a number of studies on Energy cycling have been commissioned. [...]
CERN-ACC-2015-0026.
- 2015. - 67 p.
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2015-02-12
15:18
Accelerator Quality HTS Dipole Magnet Demonstrator Designs for the EuCARD-2, 5 Tesla 40 mm Clear Aperture Magnet / Kirby, GA (CERN) ; van Nugteren, J (CERN) ; Ballarino, A (CERN) ; Bottura, L (CERN) ; Chouika, N (CERN) ; Clement, S (CERN) ; Datskov, V (CERN) ; Fajardo, L (CERN) ; Fleiter, J (CERN) ; Gauthier, R (CERN) et al.
Future high-energy accelerators will need very high magnetic fields in the range of 20 T. [...]
CERN-ACC-2015-0024.
- 2015. - 6 p.
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2015-02-12
14:58
Coil End Optimization of the Nb3Sn Quadrupole for the High Luminosity LHC / Izquierdo Bermudez, S (CERN) ; Ambrosio, G (Fermilab) ; Bossert, R (Fermilab) ; Cheng, D (LBL, Berkeley) ; Ferracin, P (CERN) ; Krave, ST (Fermilab) ; Perez, JC (CERN) ; Schmalzle, J (Brookhaven Natl. Lab.) ; Yu, M (Fermilab)
As part of the Large Hadron Collider Luminosity upgrade (HiLumi-LHC) program, the US LARP collaboration and CERN are working together to design and build a 150 mm aperture quadrupole magnet that aims at providing a nominal gradient of 140 T/m. [...]
CERN-ACC-2015-0023.
- 2015. - 6 p.
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2015-02-10
17:41
Elastic anisotropy in multifilament Nb3Sn superconducting wires / Scheuerlein, C (CERN) ; Fedelich, B (CERN) ; Alknes, P (CERN) ; Arnau, G (CERN) ; Bjoerstad, R (CERN) ; Bordini, B (CERN)
The elastic anisotropy caused by the texture in the Nb3Sn filaments of PIT and RRP wires has been calculated by averaging the estimates of Voigt and Reuss, using published Nb3Sn single crystal elastic constants and the Nb3Sn grain orientation distribution determined in both wire types by Electron Backscatter Diffraction. At ambient temperature the calculated Nb3Sn E-moduli in axial direction in the PIT and the RRP wire are 130 GPa and 140 GPa, respectively. [...]
CERN-ACC-2015-0022.- Geneva : CERN, 2015 - 5 p. Fulltext: PDF;
In : Applied Superconductivity Conference 2014, Charlotte, NC, USA, 10 - 15 Aug 2014, pp.ASC 2014

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2015-02-09
11:50
Targets for R&D on Nb$_3$Sn conductor for High Energy Physics / Ballarino, A (CERN) ; Bottura, L (CERN)
High Energy Physics has been consistently pushing the performance of technical superconductors, for the benefit of high field magnet technology. So far the workhorse for particle accelerators has been Nb-Ti, but the practical performance limit has been attained with the LHC. [...]
CERN-ACC-2015-0021.- Geneva : CERN, 2015 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 25 (2015) 6000906 Fulltext: PDF; IEEE Open Access article: PDF;
In : Applied Superconductivity Conference 2014, Charlotte, NC, USA, 10 - 15 Aug 2014, pp.6000906

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