CERN Accelerating science

EN Preprints

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2017-08-29
11:54
Most critical collimator-mask-magnet sequence in the SPS-to-LHC transfer lines: energy deposition study. / Marzo, Matteo (CERN) ; Cerutti, Francesco (CERN) ; Lechner, Anton (CERN) ; Vlachoudis, Vasilis (CERN)
This technical note refers to a study on the relation between the impact conditions of the SPS 450GeV proton beam and the energy deposited downstream the Target Collimator Dump In- jection Long (TCDIL) collimators [1], in the SPS-to-LHC transfer lines TI2 and TI8. [...]
CERN-EN-2017-001.
- 2017. - 19 p.
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2017-01-31
14:53
Determination of the boron content in polyethylene samples using the reactor Orphée / Gunsing, F (Saclay) ; Menelle, A (Saclay) ; Aberle, O (CERN)
The boron content of two unknown types of polyethylene has been determined relative to a known reference type. [...]
CERN-OPEN-2017-010 ; IRFU-17-05.
- 2017. - 8 p.
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2016-09-19
15:09
The HRMT27 (Rodtarg) Experiment: Design, Operation and First Results / Torregrosa Martin, Claudio Leopoldo (CERN) ; Perillo Marcone, Antonio (CERN) ; Calviani, Marco (CERN) ; Butcher, Mark (CERN) ; Horvath, David (CERN) ; Fornasiere, Elvis (Ecole Polytechnique Federale de Lausanne (CH)) ; Gentini, Luca (CERN)
The HRMT27-Rodtarg- experiment used the HiRadMat facility at CERN to impact intense 440 GeV proton beams onto thin rods - 8 mm diameter, 140 length - made of high-density materials such as Ir, W, Ta, Mo among others [...]
CERN-EN-2016-004.
- 2016. - 60 p.
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2016-07-12
10:47
Evaluation of the radiation field in the future circular collider detector / Besana, Maria Ilaria (CERN) ; Cerutti, Francesco (CERN) ; Ferrari, Alfredo (CERN) ; Riegler, Werner (CERN) ; Vlachoudis, Vasilis (CERN)
The radiation load on a detector at a 100 TeV proton-proton collider, that is being investigated within the Future Circular Collider (FCC) study, is presented. A peak luminosity of 30 1034 cm−2s−1 and a total integrated luminosity of 30 ab−1 are assumed for these radiation studies. [...]
CERN-EN-2016-003; CERN-ATS-2016-006.- Geneva : CERN, 2016 - 8 p. - Published in : Phys. Rev. Accel. Beams 19 (2016) 111004 Fulltext: PhysRevAccelBeams.19 - PDF; CERN-EN-2016-003 - PDF; CERN-EN-2016-003_2 - PDF;
In : 2nd Annual Meeting of the Future Circular Collider study 2016, Rome, Italy, 11 - 15 Apr 2016

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2016-05-19
16:07
Preliminary AD-Horn Thermomechanical and Electrodynamic Simulations / Lopez Sola, Edmundo (Miguel Hernandez U. ; CERN) ; Horvath, David (CERN) ; Calviani, Marco (CERN)
As part of the Antiproton Decelerator (AD) target area consolidation activities planned for LS2, it has been necessary to perform a comprehensive study of the thermo-structural behaviour of the AD magnetic horn during operation, in order to detail specific requirements for the upgrade projects and testing procedures. [...]
CERN-EN-2016-002 ; CERN-ACC-2016-0334.
- 2016. - 43 p.
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2016-02-11
12:36
The Long-Term Beam Losses in the CERN Injector Chain / Gilardoni, Simone (CERN) ; Bartosik, Hannes (CERN) ; Benedetto, Elena (CERN) ; Damerau, Heiko (CERN) ; Forte, Vincenzo (Universite Blaise Pascal (FR)) ; Giovannozzi, Massimo (CERN) ; Goddard, Brennan (CERN) ; Hancock, Steven (CERN) ; Hanke, Klaus (CERN) ; Huschauer, Alexander (CERN) et al.
For the production of the LHC type beams, but also for the high intensity ones, the budget allocated to losses in the CERN injector chain is maintained as tight as possi- ble, in particular to keep as low as possible the activation of the different machine elements. Various beam dynamics effects, like for example beam interaction with betatronic resonances, beam instabilities, but also reduced efficiency of the RF capture processes or RF noise, can produce losses even on a very long time scale. [...]
CERN-EN-2016-001.- Geneva : CERN, 2015 - 5 p. - Published in : (2015) , pp. THO1LR01
In : 54th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams, East-Lansing, USA, 10 - 14 Nov 2014, pp.THO1LR01

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2015-12-03
08:20
Applying Model Checking to Industrial-Sized PLC Programs / Fernandez Adiego, Borja (CERN) ; Darvas, Daniel (Budapest, Tech. U.) ; Blanco Vinuela, Enrique (CERN) ; Tournier, Jean-Charles (CERN) ; Bliudze, Simon (LPHE, Lausanne) ; Blech, Jan Olaf (RMIT U.) ; Gonzalez Suarez, Victor M (Oviedo U.)
Programmable logic controllers (PLCs) are embedded computers widely used in industrial control systems. Ensuring that a PLC software complies with its specification is a challenging task. [...]
CERN-OPEN-2015-009.- Geneva : CERN, 2015 - 11 p. - Published in : IEEE Trans. Ind. Inform. 11 (2015) 1400-1410 Preprint: PDF;

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2015-05-10
11:22
Network Distributed Data Acquisition, Storage, and Graphical Live Display Software for a Laser Ion Source at CERN / Rossel, Ralf Erik (Fachhochschule Wiesbaden) ; Richter, Detlef (Fachhochschule Wiesbaden) ; Rothe, Sebastian (CERN)
This project documentation outlines the requirements and implementation details for the measurement data recording software currently in development for the Resonance Ionisation Laser Ion Source (RILIS) at CERN. [...]
CERN-OPEN-2015-005.
- 2014. - 26 p.
Preprint

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2014-09-02
11:35
The management of large cabling campaigns during the Long Shutdown 1 of LHC / Meroli, Stefano (CERN) ; Machado, Simao (CERN) ; Formenti, Fabio (CERN) ; Frans, Marten (CERN) ; Guillaume, Jean Claude (CERN) ; Ricci, Daniel (CERN)
The Large Hadron Collider at CERN entered into its first 18 month-long shutdown period in February 2013. During this period the entire CERN accelerator complex will undergo major consolidation and upgrade works, preparing the machines for LHC operation at nominal energy (7 TeV/beam). [...]
CERN-OPEN-2014-042.- Geneva : CERN, 2014 - 12 p. - Published in : JINST 9 (2014) C03042 Article: PDF; IOP Open Access article: PDF;
In : Topical Workshop on Electronics for Particle Physics, Perugia, Italy, 23 - 27 Sep 2013, pp.C03042

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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.
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