CERN Accelerating science

SPS and CNGS

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2014-07-18
09:34
Système de test pour PM / Desalvo, R ; Ferri, G
SPS-ELE-Note-82-23 ; CERN-SPS-ELE-Note-82-23.
- 1982. - 8 p.
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2014-07-16
09:30
Time-Domain Absorbing Boundary Terminations for Waveguide Ports Based on State-Space Models / Flisgen, T (Universität Rostock) ; Heller, J (Universität Rostock) ; van Rienen, U (Universität Rostock)
Absorbing boundary conditions for waveguide ports in time domain are important elements of transient approaches to treat RF structures. A successful way to implement these termination conditions is the decomposition of the transient fields in the absorbing plane in terms of modal field patterns. [...]
CERN-ACC-2014-0168.- Geneva : CERN, 2014 - Published in : IEEE TRANSACTIONS ON MAGNETICS: 50 (2014) , no. 2 Fulltext: PDF;

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2014-07-15
12:38
The White Rabbit project / Serrano, J (CERN) ; Cattin, M (CERN) ; Gousiou, E (CERN) ; van der Bij, E (CERN) ; Wlostowski, T (CERN) ; Daniluk, G (AGH-UST, Cracow) ; Lipinski, M (Warsaw U. of Tech.)
White Rabbit (WR) is a multi-laboratory, multi- company collaboration for the development of a new Ethernet-based technology which ensures sub-nanosecond synchronisation and deterministic data transfer. The project uses an open source paradigm for the development of its hardware, gateware and software components. [...]
2013 Published version from JACoW: PDF;
In : 2nd International Beam Instrumentation Conference, Oxford, UK, 16 - 19 Sep 2013, pp.THBL2

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2014-07-15
12:09
Update on beam loss monitoring at CTF3 for CLIC / Devlin, L J (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Welsch, C P (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Effinger, E (CERN) ; Holzer, E B (CERN) ; del Busto, E N (Cockcroft Inst. Accel. Sci. Tech. ; CERN) ; Mallows, S (Cockcroft Inst. Accel. Sci. Tech. ; CERN) ; Branger, E (Linkoping U.)
The primary role of the beam loss monitoring (BLM) system for the compact linear collider (CLIC) study is to work within the machine protection system. Due to the size of the CLIC facility, a BLM that covers large distances along the beam line is highly desirable, in particular for the CLIC drive beam decelerators, which would alternatively require some ~40,000 localised monitors. [...]
2013 Published version from JACoW: PDF;
In : 2nd International Beam Instrumentation Conference, Oxford, UK, 16 - 19 Sep 2013, pp.WEPC43

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2014-07-15
11:55
A prototype readout system for the Diamond Beam Loss Monitors at LHC / Effinger, E (CERN) ; Dehning, B (CERN) ; Baer, T (CERN) ; Schmidt, R (CERN) ; Frais-Kölbl, H (Fachhochsch., Wiener Neustadt) ; Griesmayer, E (TU Vienna ; CIVIDEC Instrum., Vienna)
Diamond Beam Loss Monitors are used at the LHC for the measurement of fast beam losses. In this note, specimen LHC loss measurements with the prototype readout system “ROSY” from CIVIDEC are presented. [...]
2013 Published version from JACoW: PDF;
In : 2nd International Beam Instrumentation Conference, Oxford, UK, 16 - 19 Sep 2013, pp.MOPC45

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2014-07-15
11:24
A 4 GS/s feedback processing system for control of intra-bunch instabilities / Fox, J D (SLAC) ; Cesaratto, J M (SLAC) ; Dusatko, J (SLAC) ; Olsen, J (SLAC) ; Pollock, K (SLAC) ; Rivetta, C (SLAC) ; Turgut, O (SLAC) ; Hofle, W (CERN)
We present the architecture and implementation overview of a digital signal processing system developed to study control of electron cloud and transverse mode coupling instabilities in the CERN SPS. The system is based on a reconfigurable processing architecture which samples vertical bunch motion and applies correction signals at a 4 GS/s rate, allowing 16 samples across a single 5 ns SPS RF bucket. [...]
2013 Published version from JACoW: PDF;
In : 2nd International Beam Instrumentation Conference, Oxford, UK, 16 - 19 Sep 2013, pp.TUBL2

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2014-07-15
10:04
The hardware implementation of the CERN SPS ultrafast feedback processor demonstrator / Dusakto, J E (SLAC) ; Cesaratto, J M (SLAC) ; Fox, J D (SLAC) ; Olsen, J (SLAC) ; Rivetta, C H (SLAC) ; Höfle, W (CERN)
An ultrafast 4GSa/s transverse feedback processor has been developed for proof-of-concept studies of feedback control of e-cloud driven and transverse mode coupled intra-bunch instabilities in the CERN SPS. This system consists of a high-speed ADC on the front end and equally fast DAC on the back end. [...]
2013 Published version from JACoW: PDF;
In : 2nd International Beam Instrumentation Conference, Oxford, UK, 16 - 19 Sep 2013, pp.MOPC28

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2014-07-11
16:22
A novel approach to synchrotron radiation simulation / Trad, G (CERN and Université de Grenoble) ; Bravin, E (CERN) ; Goldblatt, A (CERN) ; Mazzoni, S (CERN) ; Roncarolo, F (CERN)
At the Large Hadron Collider (LHC) at CERN, synchrotron radiation (SR) is used to continuously monitor the transverse properties of the beams. [...]
CERN-ACC-2014-0165.
- 2014. - 4 p.
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2014-07-11
16:02
Design study of an ERL Test Facility at CERN / Jensen, E (CERN) ; Bracco, C (CERN) ; Brüning, O (CERN) ; Calaga, R (CERN) ; Catalan-Lasheras, N (CERN) ; Goddard, B (CERN) ; Klein, M (CERN) ; Torres-Sanchez, R (CERN) ; Valloni, A (CERN)
The modern concept of an Energy Recovery Linac allows providing large electron currents at large beam energy with low power consumption. [...]
CERN-ACC-2014-0162.
- 2014. - 4 p.
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2014-07-11
15:48
Investigations of SPS orbit drifts / Drøsdal, L (CERN) ; Bracco, C (CERN) ; Cornelis, K (CERN) ; Goddard, B (CERN) ; Kain, V (CERN) ; Meddahi, M (CERN) ; Wenninger, CERN (-) ; Gianfelice-Wendt, E (Fermilab)
The LHC is filled from the last pre-injector, the Super Proton Synchrotron (SPS), via two 3 km long transfer lines, TI 2 and TI 8. [...]
CERN-ACC-2014-0160.
- 2014. - 4 p.
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