CERN Accelerating science

ATS Reports

Ultimi arrivi:
2016-08-22
14:54
Interpretation of Wire-Scanner asymmetric profiles in a Low-Energy ring / Cieslak-Kowalska, Magdalena Anna (Ecole Polytechnique Federale de Lausanne (CH)) ; Benedetto, Elena (CERN)
In the CERN PS Booster, wire-scanner profile measurements performed at injection energy are affected by a strong asymmetry [...]
CERN-ACC-2016-0109.
- 2016. - 6 p.
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2016-08-22
14:42
Space Charge effects and mitigation in the CERN PS Booster, in view of the Upgrade / Benedetto, Elena (CERN) ; Cieslak-Kowalska, Magdalena Anna (Ecole Polytechnique Federale de Lausanne (CH)) ; Forte, Vincenzo (CERN) ; Schmidt, Frank (CERN)
The CERN PS Booster (PSB) is presently running with a space charge tune spread larger than 0.5 at injection [...]
CERN-ACC-2016-0108.
- 2016. - 7 p.
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2016-08-16
15:23
Beam screen cryogenic control improvements for the LHC run 2 / Bradu, Benjamin (CERN) ; Rogez, Edouard (CERN) ; Blanco Vinuela, Enrique (CERN) ; Ferlin, Gerard (CERN) ; Tovar-Gonzalez, Antonio (CERN)
This paper presents the improvements performed on the cryogenic control system for the LHC beam screens. [...]
CERN-ACC-2016-0106.
- 2016. - 9 p.
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2016-08-12
06:33
Data Analysis and System Survey Framework for the LHC Beam Loss Monitoring System / Xu, Chen (CERN) ; Dehning, Bernd (CERN) ; Zamantzas, Christos (CERN)
A data analysis framework has been developed to perform systematic queries and automatic analysis of the large amount of data produced by the LHC beam loss monitoring system. The framework is used to provide continuous system supervision and can give advance warning of any potential system failures. [...]
2016 - 4 p. - Published in : 10.18429/JACoW-IPAC2016-THPOY046 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOY046

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2016-08-12
06:33
Commissioning of the Machine Protection Systems of the Large Hadron Collider Following its First Long Shutdown / Wollmann, Daniel (CERN) ; Schmidt, Ruediger (CERN) ; Uythoven, Jan (CERN) ; Wenninger, Jorg (CERN) ; Zerlauth, Markus (CERN)
During the first long shutdown of the Large Hadron Collider (LHC) extending for more than 18 months, most Machine Protection Systems (MPS) have undergone significant changes, and upgrades. A full re-commissioning of the MPS was performed at the end of the shutdown and during the LHC beam commissioning in 2015. [...]
2016 - 4 p. - Published in : 10.18429/JACoW-IPAC2016-THPOY045 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOY045

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2016-08-12
06:33
Experimental Setup to Measure the Damage Limits of Superconducting Magnets due to Beam Impact at CERN's HiRadMat Facility / Kleiven, David (CERN) ; Auchmann, Bernhard (CERN) ; Raginel, Vivien (CERN) ; Schmidt, Ruediger (CERN) ; Verweij, Arjan (CERN) ; Wollmann, Daniel (CERN)
The future upgrade of CERN's injector chain for the Large Hadron Collider (LHC) will lead to an increase of the beam brightness in the LHC. Beam absorbers are capturing missteered beams, but some limited beam impact on superconducting magnets can hardly be avoided. [...]
2016 - 3 p. - Published in : 10.18429/JACoW-IPAC2016-THPOY044 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOY044

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2016-08-12
06:33
Time Scale of Crab Cavity Failures Relevant for High Luminosity LHC / Sjobak, Kyrre (CERN) ; Bruce, Roderik (CERN) ; Burkhardt, Helmut (CERN) ; Kwee-Hinzmann, Regina (Royal Holloway, U. of London) ; Macpherson, Alick (CERN) ; Santamaría García, Andrea (Ecole Polytechnique, Lausanne ; CERN)
A good knowledge of the effects of the crab cavities, required for the baseline High Luminosity LHC (HL-LHC), is needed before the results of the first tests of crab cavity prototypes in the SPS, planned for 2018, will be available. In case of crab cavity failures, we have to make sure that time scales are long enough so that the beams can be cleanly dumped before damage by beam loss occurs. [...]
2016 - 4 p. - Published in : 10.18429/JACoW-IPAC2016-THPOY043 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOY043

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2016-08-12
06:33
Evolution and Perspectives of Second Generation Magnet Interlock Systems at CERN / Romera, Iván (CERN) ; Bastian, Yan (CERN) ; Csendes, Geza (CERN) ; Dahlen, Pierre (CERN) ; Mompo, Richard (CERN) ; Von Siebenthal, Christophe (CERN) ; Zerlauth, Markus (CERN)
The CERN accelerator complex relies on thousands of superconducting and normal conducting magnets to guide the particle beams on their trajectories throughout the accelerator chain. In order to protect magnet and powering equipment from damage, complex magnet interlock systems are deployed and operated in the LHC and its injectors. [...]
2016 - 4 p. - Published in : 10.18429/JACoW-IPAC2016-THPOY042 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOY042

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2016-08-12
06:33
CERN Beam Interlock Redundant Dump Trigger Module Performance during LHC Run 2 / Calcoen, Daniel (CERN) ; Gabourin, Stéphane (CERN) ; Siemko, Andrzej (CERN)
During the Long Shutdown 1 an additional link between the Beam Interlocks System and the LHC Beam Dumping System was installed. This third channel is a direct access from the BIS to the asynchronous dump triggering lines. [...]
2016 - 3 p. - Published in : 10.18429/JACoW-IPAC2016-THPOY041 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOY041

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2016-08-12
06:33
Dependability Studies for CERN PS Booster RF System Upgrade / Rey Orozko, Odei (CERN) ; Apollonio, Andrea (CERN) ; Jonker, Michael (CERN) ; Paoluzzi, Mauro (CERN)
Radio frequency systems are a vital part of almost all accelerators. The request for a higher beam bright-ness from the injector chain of CERN's Large Hardon Collider, as demanded by the future High-Luminosity program, has motivated, among many other upgrades, the construction of new RF equipment in the PS Boost-er. [...]
2016 - 4 p. - Published in : 10.18429/JACoW-IPAC2016-THPOY030 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOY030

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