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STE-QUEST: Space Time Explorer and QUantum Equivalence principle Space Test
/ STE-QUEST Collaboration
An M-class mission proposal in response to the 2021 call in ESA's science programme with a broad range of objectives in fundamental physics, which include testing the Equivalence Principle and Lorentz Invariance, searching for Ultralight Dark Matter and probing Quantum Mechanics..
arXiv:2211.15412 ; CERN-TH-2022-202.
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78 p.
Fulltext
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2.
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The CMS DAQ Pinball Machine
/ Cornu, Cynthia (ISRI, Geneva ; CERN) ; Deldicque, Christian (CERN) ; Gladki, Maciej (CERN) ; Holzner, André (CERN ; BBC, Zurich) ; Perrenoud, Lydie (ISRI, Geneva ; CERN) ; Reis, Thomas (CERN ; Rutherford) ; Sakulin, Hannes (CERN) ; Vougioukas, Michail (CERN ; Silicon Graphics, Switzerland)
/CMS Collaboration
We present an interactive game for up to seven players that demonstrates the challenges of on-line event selection at the Compact Muon Solenoid (CMS) experiment to the public. The game - in the shape of a popular classic pinball machine - was conceived and prototyped by an interdisciplinary team of graphic designers, physicists and engineers at the CMS Create hackathon in 2016. [...]
CMS-CR-2020-077.-
Geneva : CERN, 2020 - 6 p.
- Published in : EPJ Web Conf. 245 (2020) 08001
Fulltext: PDF; Fulltext from publisher: PDF;
In : 24th International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4 - 8 Nov 2019, pp.08001
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4.
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Hydrogen production via methane pyrolysis in a liquid metal bubble column reactor with a packed bed
/ Geißler, T (KIT, Karlsruhe) ; Abánades, A (Institute for Advanced Sustainability Studies, Potsdam ; Madrid, Polytechnic U.) ; Heinzel, A (KIT, Karlsruhe) ; Mehravaran, K (Institute for Advanced Sustainability Studies, Potsdam) ; Müller, G (KIT, Karlsruhe) ; Rathnam, R K (Institute for Advanced Sustainability Studies, Potsdam) ; Rubbia, C (Institute for Advanced Sustainability Studies, Potsdam ; CERN) ; Salmieri, D (CERN ; Institute for Advanced Sustainability Studies, Potsdam) ; Stoppel, L (KIT, Karlsruhe) ; Stückrad, S (Institute for Advanced Sustainability Studies, Potsdam) et al.
Methane pyrolysis experiments using a quartz glass-steel bubble column reactor filled with liquid tin and cylindrical quartz glass rings serving as a packed bed were conducted at various liquid metal temperature levels in the range of 930–1175 °C. Besides the liquid metal temperature, special attention was paid to the influence of the feed gas volume flow rate in the range of 50–200 mln/min and the inlet feed gas dilution with nitrogen. [...]
2016 - 9 p.
- Published in : Chem. Eng. J. 299 (2016) 192-200
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5.
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A Web-Based Development Environment for Collaborative Data Analysis
/ Erdmann, M (Louvain U., CP3) ; Fischer, R (Louvain U., CP3) ; Glaser, C (Louvain U., CP3) ; Klingebiel, D (Louvain U., CP3) ; Komm, M (Louvain U., CP3) ; Müller, G ; Rieger, M ; Steggemann, J (CERN) ; Urban, M (Aachen, Tech. Hochsch.) ; Winchen, T (Aachen, Tech. Hochsch.)
Visual Physics Analysis (VISPA) is a web-based development environment addressing high energy and astroparticle physics. It covers the entire analysis spectrum from the design and validation phase to the execution of analyses and the visualization of results [...]
2014 - 5 p.
- Published in : J. Phys.: Conf. Ser. 523 (2014) 012021
In : 15th International Workshop On Advanced Computing And Analysis Techniques In Physics Research, Beijing, China, 16 - 21 May 2013, pp.012021
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6.
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Enhanced Field Emission and Emitter Activation on Flat Dry-ice Cleaned Cu Samples
/ Lagotzky, Stefan (Wuppertal U.) ; Müller, Guenter (Wuppertal U.) ; Serbun, Pavel (Wuppertal U.) ; Calatroni, Sergio (CERN) ; Muranaka, Tomoko (CERN)
EDark currents caused by enhanced field emission (EFE) are considered as major origin of breakdown events limiting performance of pulsed normal conducting Cu accelerating structures. Measurements on diamond - turned, flat Cu samples (R a = 126 nm) showed first EFE before (after) dry ice cleaning (DIC) at an activation field E act = 130 (190) MV/m. [...]
2014 - 3 p.
- Published in : , pp. WEPME005
Fulltext: PDF; External link: Published version from JACoW
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.WEPME005
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7.
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Aperture and optics–measurements and conclusions
/ Redaelli, S (CERN) ; Assmann, R (CERN) ; Bruce, R (CERN) ; Buffat, X (CERN) ; Giovannozzi, M (CERN) ; Lamont, M (CERN) ; Miyamoto, R (CERN) ; Müller, G (CERN) ; Tomás, R (CERN) ; Vanbavinckhove, G (CERN) et al.
In 2011, the LHC has delivered collisions with different optics configurations in the four interaction points, at an operating energy of 3.5 TeV. The performance has been pushed during the year until a final configuration with 3 IPs squeezed to 1 m was achieved. [...]
2012
Published version from CERN: PDF;
In : 3rd Evian Workshop on LHC beam operation, Evian-les-bains, France, 12 - 14 Dec 2011, pp.77-84
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8.
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Operation of the Betatron Squeeze at the LHC
/ Redaelli, S (CERN) ; Buffat, X (CERN) ; Lamont, M (CERN) ; Muller, G (CERN) ; Camillocci, M S (CERN) ; Tomas, R (CERN) ; Wenninger, J (CERN)
The betatron squeeze is one of the most delicate operational phases at the Large Hadron Collider (LHC) as it entails changes of optics performed at top energy, with full intensities. Appropriate software was developed to handle the squeeze, which ensured an efficient commissioning down to a β* of 60 cm at 4 TeV, and a smooth operation [...]
CERN-ACC-2013-0179.-
Geneva : CERN, 2013 - 3 p.
Fulltext: PDF;
In : 4th International Particle Accelerator Conference, Shanghai, China, 12 - 17 May 2013, pp.1430
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LHC Supertable
/ Pereira, M (CERN) ; Lahey, TE (CERN) ; Lamont, M (CERN) ; Muller, GJ (CERN) ; Teixeira, D D (Frascati) ; McCrory, ES (Fermilab)
LHC operations generate enormous amounts of data. This data is being stored in many different databases. [...]
2011 - 4 p.
- Published in : Conf. Proc.: C111010 (2011) , pp. MOPKN002
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.86-89
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10.
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Comparison of LHC collimator beam-based alignment to BPM-Interpolated centers
/ Valentino, G (CERN ; Malta U.) ; Sammut, N (CERN ; Malta U.) ; Assmann, R W (CERN) ; Bruce, R (CERN) ; Muller, G J (CERN) ; Redaelli, S (CERN) ; Rossi, A (CERN) ; Lari, L (CERN ; Valencia U., IFIC)
The beam centers at the Large Hadron Collider collimators are determined by beam-based alignment, where both jaws of a collimator are moved in separately until a loss spike is detected on a Beam LossMonitor downstream. Orbit drifts of more than a few hundred micrometers cannot be tolerated, as they would compromise the performance of the collimation system. [...]
CERN-ATS-2012-174.-
Geneva : CERN, 2012 - 3 p.
- Published in : Conf. Proc.: C1205201 (2012) , pp. TUPPR098
Fulltext: PDF; External link: Published version from JaCoW
In : 3rd International Particle Accelerator Conference, New Orleans, LA, USA, 20 - 25 May 2012, pp.2062
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