CERN Accelerating science

Accelerator Physics

Последние добавления:
2017-11-08
12:21
MD 979: Beta-beating measurements on colliding beams / Goncalves Jorge, Patrik ; Barranco Garcia, Javier (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Pieloni, Tatiana (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Buffat, Xavier (CERN) ; Carlier, Felix Simon (Technische Universiteit Delft (NL)) ; Coello De Portugal - Martinez Vazquez, Jaime Maria (Universitat Politecnica Catalunya (ES)) ; Fol, Elena (University of Applied Sciences (DE)) ; Langner, Andy Sven (CERN) ; Medina Medrano, Luis Eduardo (Universidad de Guanajuato (MX)) ; Olexa, Jakub (CERN) et al.
The HL-LHC high brightness beams will give a large β-beating due to the head-on and long-range interactions since a beam-beam parameter of 0.01 per Interaction Point (IP) is expected. [...]
CERN-ACC-NOTE-2017-0060.
- 2017. - 13 p.
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2017-11-01
10:41
Compact Linear Collider component fiducialisation using Frequency Scanning Interferometry / Kamugasa, S (CERN and ETH Zurich) ; Gayde, J-C (CERN) ; Mainaud-Durand, H (CERN)
The Compact Linear Collider (CLIC) is a next generation electron-positron collider under study at CERN. One of the main technological challenges of this project is the tight pre-alignment tolerances of under 17 µm over a 200 m sliding window for its constituent components. [...]
CERN-ACC-2017-0093.- Geneva : CERN, 2017 - Published in : Fulltext: PDF;
In : EUSPEN's 17th International Conference and Exhibition, Hannover, Germany, 29 May - 2 Jun 2017

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2017-10-30
10:03
Optics Measurements and Correction Challenges for the HL-LHC / Carlier, Felix Simon (Technische Universiteit Delft (NL)) ; Coello De Portugal - Martinez Vazquez, Jaime Maria (Universitat Politecnica Catalunya (ES)) ; Fartoukh, Stephane (CERN) ; Fol, Elena (University of Applied Sciences (DE)) ; Gamba, Davide (CERN) ; Garcia-Tabares Valdivieso, Ana (Universidad Complutense (ES)) ; Giovannozzi, Massimo (CERN) ; Hofer, Michael (Vienna University of Technology (AT)) ; Langner, Andy Sven (CERN) ; Maclean, Ewen Hamish (CERN) et al.
Optics control in the HL-LHC will be challenged by a very small β* of 15 cm in the two main experiments [...]
CERN-ACC-2017-0088.
- 2017. - 58 p.
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2017-10-25
16:18
ICFA mini-workshop on Impedances and Beam Instabilities in Particle Accelerators - International Workshop on Impedances and Beam Instabilities in Particle Accelerators   18 - 22 Sep 2017  - Benevento, Italy  / Masullo, Maria Rosaria (ed.) (INFN Naples (Masullo@na.infn.it)); Petracca, Stefania (ed.) (University of Sannio (Petracca@sa.infn.it)); Rumolo, Giovanni (ed.) (CERN (Giovanni.Rumolo@CERN.ch))
2017 Conference home page

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2017-10-18
06:37
Characterization of Shielding for the CERN-SPS Vacuum Flanges With Respect to Beam Coupling Impedance / Kaltenbacher, Thomas (CERN) ; Vollinger, Christine (CERN)
Longitudinal multi-bunch instabilities in the CERN-SPS pose a serious limitation for future beam intensities required for high luminosity LHC. Hence, an impedance model for the SPS accelerator was developed from which one group of vacuum flanges could be identified as being a major culprit for these instabilities. [...]
2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-WEPIK090 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.WEPIK090

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2017-10-18
06:37
Online Bunch by Bunch Transverse Instability Detection in LHC / Söderén, Martin (CERN) ; Kotzian, Gerd (CERN) ; Ojeda Sandonís, Miguel (CERN) ; Valuch, Daniel (CERN)
Reliable detection of developing transverse instabilities in the Large Hadron Collider is one of the main operational challenges of the LHC's high intensity proton run. A full machine snapshot provided from the moment of instability is a crucial input to develop and fine tune instability models. [...]
2017 - 3 p. - Published in : 10.18429/JACoW-IPAC2017-MOPAB117 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPAB117

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2017-10-18
06:37
Transverse Beam Phase-Space Measurement Experience at CTF3 / Gamba, Davide (CERN) ; Constance, Ben (CERN) ; Corsini, Roberto (CERN) ; Döbert, Steffen (CERN) ; Malina, Lukas (CERN) ; Martin, Lucy (JAI, UK) ; Peirson Serratosa, Abel (Oxford U.) ; Persson, Tobias (CERN) ; Roberts, Jack (CERN) ; Rollings, Alexandra (CERN) et al.
One of the objective of the CLIC Test Facility (CTF3) at CERN is to demonstrate the CLIC Drive Beam Recombination concept. An accurate control of the transverse beam parameters is necessary in order to succeed in preserving the beam quality after the recombination. [...]
2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-MOPAB115 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPAB115

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2017-10-18
06:37
Usage of the Transverse Damper Observation Box for High Sampling Rate Transverse Position Data in the LHC / Carver, Lee (CERN) ; Buffat, Xavier (CERN) ; Butterworth, Andrew (CERN) ; Höfle, Wolfgang (CERN) ; Iadarola, Giovanni (CERN) ; Kotzian, Gerd (CERN) ; Li, Kevin (CERN) ; Métral, Elias (CERN) ; Ojeda Sandonís, Miguel (CERN) ; Söderén, Martin (CERN) et al.
The transverse damper observation box (ADTObsBox) is a device that makes accessible the bunch-by-bunch turn-by-turn data recorded from the pickups of the LHC transverse damper. This device can provide online transient analysis of different beam dynamics effects (tunes and damping times at injection, for example), while also under development is an online coherent instability triggering system. [...]
2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-MOPAB113 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPAB113

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2017-10-18
06:37
Phase Space Folding Studies for Beam Loss Reduction During Resonant Slow Extraction at the CERN SPS / Stoel, Linda (CERN) ; Benedikt, Michael (CERN) ; Cornelis, Karel (CERN) ; Fraser, Matthew (CERN) ; Goddard, Brennan (CERN) ; Kain, Verena (CERN) ; Velotti, Francesco (CERN)
The requested number of protons slow-extracted from the CERN Super Proton Synchrotron (SPS) for Fixed Target (FT) physics is expected to continue increasing in the coming years, especially if the proposed SPS Beam Dump Facility is realised. Limits on the extracted intensity are already being considered to mitigate the dose to personnel during interventions required to maintain the extraction equipment, especially the electrostatic extraction septum. [...]
2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-MOPIK046 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPIK046

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2017-10-18
06:37
Beam Delivery System Optimization for CLIC 380 GeV / Plassard, Fabien (CERN) ; Bambade, Philip (Orsay, LAL) ; Latina, Andrea (CERN) ; Marín, Eduardo (CERN) ; Schulte, Daniel (CERN) ; Tomás, Rogelio (CERN)
In the framework of the CLIC rebaselining, the Beam Delivery System (BDS) have been re-optimized for its initial stage at 380 GeV. Two BDS designs with L*=4.3 meters and L*=6 meters have been investigated. [...]
2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-MOPIK100 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPIK100

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