CERN Accelerating science

ATS Reports

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2016-12-02
17:20
Parameters for aperture calculations at injection for HL-LHC* / Bruce, Roderik (CERN) ; Bracco, Chiara (CERN) ; De Maria, Riccardo (CERN) ; Giovannozzi, Massimo (CERN) ; Redaelli, Stefano (CERN) ; Tomas Garcia, Rogelio (CERN) ; Velotti, Francesco Maria (CERN) ; Wenninger, Jorg (CERN)
Accurate evaluations of the margins of available aperture in the LHC and HL-LHC are very important, in order to judge if proposed optics and hardware are adequate, and to push the machine performance. [...]
CERN-ACC-2016-0328.
- 2016. - 25 p.
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2016-11-08
15:15
Figures of merit for the evaluation of regenerative power converters / Maestri, Sebastian (Univ. Nacional de Mar del Plata (AR)) ; Rossini, Stefano (CERN) ; Le Godec, Gilles (CERN) ; Papastergiou, Konstantinos (CERN) ; Carrica, Daniel (Univ. Nacional de Mar del Plata (AR)) ; Retegui, Rogeli Garcia (Univ. Nacional de Mar del Plata (AR))
In some applications, like those for particle accelerators and transfer lines, electromagnet loads operate in cycling mode i.e. [...]
CERN-ACC-2016-0327.
- 2016. - 10 p.
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2016-11-08
11:14
Current Sharing inside a High Power IGBT Module at the Negative Temperature Coefficient Operating Region / Asimakopoulos, Panagiotis (Chalmers University of Technology (SE)) ; Papastergiou, Konstantinos (CERN) ; Bongiorno, M (Chalmers University of Technology) ; Thiringer, T (Chalmers University of Technology)
This work investigates the current sharing effect of a high power Soft Punch Through IGBT module in the Negative Temperature Coefficient region. [...]
CERN-ACC-2016-0326.
- 2016. - 10 p.
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2016-09-26
17:46
Case study of a magnetic system for low-energy machines / Schoerling, Daniel (CERN)
The extra low-energy antiproton ring (ELENA) is a CERN particle decelerator with the purpose to deliver antiprotons at lowest energies aiming to enhance the study of antimatter. The hexagonal shaped ring with a circumference of about 30 m will decelerate antiprotons from momenta of 100 to 13.7 MeV/c. [...]
CERN-ACC-2016-0114.- Geneva : CERN, 2016 - 17 p. - Published in : Phys. Rev. Spec. Top. Accel. Beams 19 (2016) 1-17 APS Open Access article: PDF; Fulltext: PDF;

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2016-09-23
09:46
RF Design of the TW Buncher for the CLIC Drive Beam Injector (2nd report) / Shaker, Hamed (School of Particles and Accelerator Inst. for Res. in Fundam. Sc. (IPM) (IR))
CLIC is based on the two beams concept that one beam (drive beam) produces the required RF power to accelerate another beam (main beam) [...]
CERN-ACC-2016-0113 ; CLIC-Note-1068.
- 2016. - 15 p.
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2016-09-21
16:49
Beam induced heat loads on the beam-screens of the twin-bore magnets in the IRs of the HL-LHC / Iadarola, Giovanni (CERN) ; Metral, Elias (CERN) ; Rumolo, Giovanni (CERN)
The expected heat load induced on the beam screens has been evaluated for all the twin-bore magnets in the Insertion Regions (IRs) of the HL-LHC. [...]
CERN-ACC-2016-0112.
- 2016. - 32 p.
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2016-09-06
06:23
Upgrades to the Infrastructure and Management of the Operator Workstations and Servers for Run 2 of the CERN Accelerator Complex / Bland, Alastair (CERN) ; Page, Stephen (CERN)
The Controls Group of the CERN Beams Department provides more than 400 operator workstations in the CERN Control Centre (CCC) and technical buildings of the accelerators, plus 300 servers in the server room (CCR) of the CCC. During the long shutdown of the accelerators that started in February 2013, many upgrades were done to improve this infrastructure in view of the higher-energy LHC run. [...]
2015 - 4 p. - Published in : 10.18429/JACoW-ICALEPCS2015-THHD3O08 Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.THHD3O08

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2016-09-06
06:23
Standards-Based Open-Source PLC Diagnostics Monitoring / Copy, Brice (CERN) ; Milcent, Herve (CERN) ; Zimny, Michal (CERN)
PLCs are widely used to control and monitor industrial processes at CERN. Since these PLCs fulfill critical functions, they must be placed under permanent monitoring. [...]
2015 - 4 p. - Published in : 10.18429/JACoW-ICALEPCS2015-THHD3O05 Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.THHD3O05

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2016-09-06
06:23
A Modular Approach to Acquisition Systems for Future CERN Beam Instrumentation Developments / Boccardi, Andrea (CERN) ; Barros Marin, Manoel (CERN) ; Levens, Thomas (CERN) ; Szuk, Balint (CERN) ; Viganò, William (CERN) ; Zamantzas, Christos (CERN)
This paper will present the new modular architecture adopted as a baseline by the CERN Beam Instrumentation Group for its future acquisition system developments. The main blocks of this architecture are: radiation tolerant digital front-ends; a latency deterministic multi gigabit optical link; a high pin count FMC carrier used as a VME-based back-end for data concentration and processing. [...]
2015 - 4 p. - Published in : 10.18429/JACoW-ICALEPCS2015-THHB2O02 Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.THHB2O02

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2016-09-06
06:23
The Evolution of the ALICE Detector Control System / Chochula, Peter (CERN) ; Augustinus, Andre (CERN) ; Bond, Peter (CERN) ; Kurepin, Alexander (Moscow, INR ; CERN) ; Lechman, Mateusz (CERN) ; Pinazza, Ombretta (CERN ; INFN, Bologna)
The ALICE Detector Control System has provided its service since 2007. Its operation in the past years proved that the initial design of the system fulfilled all expectations and allowed the evolution of the detectors and operational requirements to follow. [...]
2015 - 4 p. - Published in : 10.18429/JACoW-ICALEPCS2015-THHA3O01 Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.THHA3O01

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