CERN Accelerating science

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2014-03-14
15:48
New Post-Collision Line Design / Gatignon, Lau (CERN) ; Deacon, Lawrence (Cern)
The 1.5 TeV Compact Linear Collider (CLIC) beams, with a total power of 14 MW per beam, are disrupted at the interaction point due to the very strong beam-beam effect. [...]
CERN-OPEN-2014-025 ; CLIC-Note-1023.
- 2014. - 11 p.
Preprint

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2013-12-11
15:20
Studies of Cs3Sb cathodes for the CLIC drive beam photo injector option / Martini, Irene (CERN) ; Chevallay, Eric (CERN) ; Doebert, Steffen (CERN) ; Fedosseev, Valentine (CERN) ; Hessler, Christoph (CERN) ; Martyanov, Mikhail (CERN)
Within the CLIC (Compact Linear Collider) project, feasibility studies of a photo injector option for the drive beam as an alternative to its baseline design using a thermionic electron gun are on-going [...]
CERN-OPEN-2013-040 ; CLIC-Note-1020.
- 2013. - 4 p.
Preprint

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2012-05-14
15:18
CLIC MDI Overview / Gatignon, Lau (CERN)
This paper gives an introduction to the layout of the CLIC Machine Detector Interface as it has been defined for the CLIC Conceptual Design Report. [...]
CERN-OPEN-2012-010 ; CLIC-Note-937.
- 2012. - 11 p.
Preprint

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2011-10-20
16:22
Integrating Controls Frameworks: Control Systems for NA62 LAV Detector Test Beams / Holme, Oliver (CERN ; Zurich, ETH) ; Arroyo Garcia, Jonas (CERN) ; Golonka, Piotr (CERN) ; Gonzalez-Berges, Manuel (CERN) ; Milcent, Hervé (CERN)
The detector control system for the NA62 experiment at CERN, to be ready for physics data-taking in 2014, is going to be built based on control technologies recommended by the CERN Engineering group. A rich portfolio of the technologies is planned to be showcased and deployed in the final application, and synergy between them is needed. [...]
CERN-OPEN-2011-043.- Geneva : CERN, 2011 - 4 p. - Published in : Conf. Proc.: C111010 (2011) , pp. MOPMN020 Fulltext: PDF; External link: Published version from JaCoW
In : 13th International Conference on Accelerator and Large Experimental Physics Control Systems, Grenoble, France, 10 - 14 Oct 2011, pp.285-288

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2011-06-01
11:18
Fluka and thermo-mechanical studies for the CLIC main dump / Mereghetti, Alessio (CERN) ; Maglioni, Cesare (CERN) ; Vlachoudis, Vasilis (CERN)
In order to best cope with the challenge of absorbing the multi-MW beam, a water beam dump at the end of the CLIC post-collision line has been proposed [...]
CERN-OPEN-2011-030 ; CLIC-Note-876.
- 2011. - 12 p.
Preprint

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2011-04-27
15:37
Monte Carlo study of forward $\pi^{0}$ production spectra to be measured by the LHCf experiment for the purpose of benchmarking hadron interaction models at 10$^{17}$ eV / Menjo, H (INFN, Florence) ; Adriani, O (Florence U. ; INFN, Florence) ; Bonechi, L (Florence U. ; INFN, Florence) ; Bongi, M (INFN, Florence) ; Castellini, G (IFAC, Florence ; INFN, Florence) ; D'Alessandro, R (Florence U. ; INFN, Florence) ; Faus, A (Valencia U., IFIC) ; Fukui, K (Nagoya U., Solar-Terrestrial Environ. Lab.) ; Haguenauer, M (Ecole Polytechnique) ; Itow, Y (Nagoya U., Solar-Terrestrial Environ. Lab.) et al.
2011 - 8 p. - Published in : Astropart. Phys. 34 (2011) 513-520

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2011-03-08
09:18
Physics and measurements of magnetic materials / Sgobba, S (CERN)
Magnetic materials, both hard and soft, are used extensively in several components of particle accelerators. Magnetically soft iron-nickel alloys are used as shields for the vacuum chambers of accelerator injection and extraction septa; Fe-based material is widely employed for cores of accelerator and experiment magnets; soft spinel ferrites are used in collimators to damp trapped modes; innovative materials such as amorphous or nanocrystalline core materials are envisaged in transformers for high-frequency polyphase resonant convertors for application to the International Linear Collider (ILC). [...]
arXiv:1103.1069.- CERN, 2010 - 25 p. Published version from CERN: PDF; External link: Preprint
In : CAS - CERN Accelerator School: Specialised course on Magnets, Hotel Novotel Brugge Centrum, Bruges, Belgium, 16 - 25 Jun 2009, pp.39-63

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2011-02-07
11:04
New Type of Asymmetric Fission in Proton-Rich Nuclei / Andreyev, A N (Leuven U. ; West Scotland U. ; Scottish U. Research Reactor Ctr.) ; Elseviers, J (Leuven U.) ; Huyse, M (Leuven U.) ; Van Duppen, P (Leuven U.) ; Antalic, S (Comenius U.) ; Barzakh, A (St. Petersburg, INP) ; Bree, N (Leuven U.) ; Cocolios, T E (Leuven U.) ; Comas, V F (Darmstadt, GSI) ; Diriken, J (Leuven U.) et al.
A very exotic process of β-delayed fission of 180Tl is studied in detail by using resonant laser ionization with subsequent mass separation at ISOLDE (CERN). In contrast to common expectations, the fission-fragment mass distribution of the post-β-decay daughter nucleus 180Hg (N/Z=1.25) is asymmetric. [...]
2010 - 5 p. - Published in : Phys. Rev. Lett. 105 (2010) 252502 APS Published version, local copy: PDF;

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2010-12-01
06:00
Manipulation of Negatively Charged Beams via Coherent Effects in Bent Crystals / Scandale, Walter (CERN) ; Guidi, Vincenzo (INFN, Ferrara) ; Bagli, Enrico (INFN, Ferrara) ; Mazzolari, Andrea (INFN, Ferrara) ; Afonin, Alexander (Serpukhov, IHEP) ; Chesnokov, Yuri (Serpukhov, IHEP) ; Maisheev, Vladimir (Serpukhov, IHEP) ; Yazynin, Igor (Serpukhov, IHEP) ; Baricordi, Stefano (Ferrara U.) ; Dalpiaz, Pietro (Ferrara U.) et al.
We review the experimental evidences we recorded with volume reflection and planar and axial channelings with negatively charged particles beam. High deflection efficiency was observed in all cases [...]
2010 External link: Published version from JACoW
In : 1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.THPD052

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2010-11-24
07:52
Preliminary results of the crystal collimation test in UA9 / Mirarchi, Daniele (INFN, Rome) ; Cavoto, Gianluca (INFN, Rome) ; Losito, Roberto (CERN) ; Scandale, Walter (CERN) ; Taratin, Alexander (Dubna, JINR)
We present a detailed analysis of the beam loss data collected at the SPS during the 2009 machine developments devoted to test crystal collimation. Scintillator counters and GEM detectors were installed in special points to detect the effect of inelastic interaction of protons with the crystals in various orientation with respect to the beam [...]
2010 External link: Published version from JACoW
In : 1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.TUPEB075

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