CERN Accelerating science

SPS and CNGS

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2014-08-21
17:18
Investigation of Coupling during the Non-Local Fast Extraction in the SPS / Alekou, A ; Bartosik, H ; Papaphilippou, Y
The CENF (CERN Neutrino Facility) requires a high-intensity and high-energy beam (100 GeV) to be extracted in only one machine revolution from the Long Straight Section 2 (LSS2) of the SPS. [...]
CERN-ACC-NOTE-2014-0060.
- 2014. - 11 p.
Full text

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2014-08-12
15:13
Theoretical Analysis of Metamaterial Insertions for Resistive-Wall Beam-Coupling Impedance Reduction / Danisi, A ; Zannini, C ; Masi, A ; Losito, R ; Salvant, B
Resistive-wall impedance usually constitutes a significant percentage of the total beam-coupling impedance budget of an accelerator. Reduction techniques often entail high electrical-conductivity coatings. [...]
CERN-ACC-2014-0191.- Geneva : CERN, 2014 - 4 p. Fulltext: PDF;
In : 5th International Particle Accelerator Conference , Dresden, Germany, 15 - 20 Jun 2014, pp.4

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2014-08-12
12:02
Experiments of Laser Pointing Stability in Air and in Vacuum to Validate Micrometric Positioning Sensor / Stern, G ; Mainaud-Durand, H ; Piedigrossi, D ; Sandomierski, J ; Sosin, M ; Geiger, A ; Guillaume, S
Aligning accelerator components over 200m with 10 μm accuracy is a challenging task within the Compact Linear Collider (CLIC) study. A solution based on laser beam in vacuum as straight line reference is proposed. [...]
CERN-ACC-2014-0188.- Geneva : CERN, 2014 - 4 p. Fulltext: PDF;
In : 5th International Particle Accelerator Conference , Dresden, Germany, 15 - 20 Jun 2014, pp.4

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2014-08-07
16:16
High Power Molten Targets for Radioactive Ion Beam Production: from Particle Physics to Medical Applications / De Melo Mendonca, T M
Megawatt-class molten targets, combining high material densities and good heat transfer properties are being considered for neutron spallation sources, neutrino physics facilities and radioactive ion beam production. For this last category of facilities, in order to cope with the limitation of long diffusion times affecting the extraction of short-lived isotopes, a lead-bismuth eutectic (LBE) target loop equipped with a diffusion chamber has been proposed and tested offline during the EURISOL design study. [...]
CERN-ACC-2014-0183.- Geneva : CERN, 2014 - 4 p. Fulltext: PDF;
In : 5th International Particle Accelerator Conference , Dresden, Germany, 15 - 20 Jun 2014, pp.4

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2014-08-07
15:31
The AWAKE Experimental Facility at CERN / Gschwendtner, E ; Bohl, T ; Bracco, C ; Butterworth, A ; Cipiccia, S ; Doebert, S ; Fedosseev, V ; Feldbaumer, E ; Hessler, C ; Hofle, W et al.
AWAKE, an Advanced Wakefield Experiment is launched at CERN to verify the proton driven plasma wakefield acceleration concept. Proton bunches at 400 GeV/c will be extracted from the CERN SPS and sent along a 750 m long proton line to a plasma cell, a Rubidium vapour source, where the proton beam drives wakefields reaching accelerating gradients of several gigavolts per meter. [...]
CERN-ACC-2014-0182.- Geneva : CERN, 2014 - 5 p. Fulltext: PDF;
In : 5th International Particle Accelerator Conference , Dresden, Germany, 15 - 20 Jun 2014, pp.5

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2014-08-05
15:54
First beam background simulation studies at ir1 for high luminosity LHC / Kwee-Hinzmann†, R ; Gibson, S M ; Bregliozzi, G ; Bruce, R ; Cerutti, F ; Esposito, L S ; Kersevan, R ; Lechner, A ; Shetty, N V
In the High-Luminosity Large Hadron Collider (HL-LHC) Project, the LHC will be significantly upgraded to produce about an order of magnitude more of integrated luminosity per year than what was achieved in Run I (2011 and 2012 data) in ATLAS at IR1 and CMS at IR5. [...]
CERN-ACC-2014-0180.
- 2014. - 4 p.
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2014-07-18
09:34
Système de test pour PM / Desalvo, R ; Ferri, G
SPS-ELE-Note-82-23 ; CERN-SPS-ELE-Note-82-23.
- 1982. - 8 p.
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2014-07-16
09:30
Time-Domain Absorbing Boundary Terminations for Waveguide Ports Based on State-Space Models / Flisgen, T (Universität Rostock) ; Heller, J (Universität Rostock) ; van Rienen, U (Universität Rostock)
Absorbing boundary conditions for waveguide ports in time domain are important elements of transient approaches to treat RF structures. A successful way to implement these termination conditions is the decomposition of the transient fields in the absorbing plane in terms of modal field patterns. [...]
CERN-ACC-2014-0168.- Geneva : CERN, 2014 - Published in : IEEE TRANSACTIONS ON MAGNETICS: 50 (2014) , no. 2 Fulltext: PDF;

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2014-07-15
12:38
The White Rabbit project / Serrano, J (CERN) ; Cattin, M (CERN) ; Gousiou, E (CERN) ; van der Bij, E (CERN) ; Wlostowski, T (CERN) ; Daniluk, G (AGH-UST, Cracow) ; Lipinski, M (Warsaw U. of Tech.)
White Rabbit (WR) is a multi-laboratory, multi- company collaboration for the development of a new Ethernet-based technology which ensures sub-nanosecond synchronisation and deterministic data transfer. The project uses an open source paradigm for the development of its hardware, gateware and software components. [...]
2013 Published version from JACoW: PDF;
In : 2nd International Beam Instrumentation Conference, Oxford, UK, 16 - 19 Sep 2013, pp.THBL2

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2014-07-15
12:09
Update on beam loss monitoring at CTF3 for CLIC / Devlin, L J (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Welsch, C P (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Effinger, E (CERN) ; Holzer, E B (CERN) ; del Busto, E N (Cockcroft Inst. Accel. Sci. Tech. ; CERN) ; Mallows, S (Cockcroft Inst. Accel. Sci. Tech. ; CERN) ; Branger, E (Linkoping U.)
The primary role of the beam loss monitoring (BLM) system for the compact linear collider (CLIC) study is to work within the machine protection system. Due to the size of the CLIC facility, a BLM that covers large distances along the beam line is highly desirable, in particular for the CLIC drive beam decelerators, which would alternatively require some ~40,000 localised monitors. [...]
2013 Published version from JACoW: PDF;
In : 2nd International Beam Instrumentation Conference, Oxford, UK, 16 - 19 Sep 2013, pp.WEPC43

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