CERN Accelerating science

CERN Document Server 26 records found  1 - 10nextend  jump to record: Search took 0.67 seconds. 
1.
Evaluation of the impact of REBCO-coated conductors on the resistive wall impedance of the FCC-hh / Tagdulang, N D (CELLS - ALBA, LLS) ; Günzel, T (CELLS - ALBA, LLS) ; Pont, M (CELLS - ALBA, LLS) ; Krkotic, P (CERN) ; O'Callaghan, J M (Barcelona, Polytechnic U.)
The beam screen for the Future Circular hadron-hadron Collider (FCC-hh) has a baseline design based on a copper (Cu) coating. Calculations have indicated that the resistive wall impedance will be the major contributor to the beam impedance for the FCC-hh at both injection and collision and that Cu might be on the limit to ensure beam stability. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) WEPL135 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPL135
2.
TMCI, why is the horizontal plane so different from the vertical one? / Günzel, T (CELLS - ALBA, LLS)
Based on the recent work of R. Lindberg on transverse collective instabilities it was observed that if the ratio of quadrupolar to dipolar impedance ρ is equal to -1, there is no TMC-instability. [...]
2020 - 4 p. - Published in : 10.23732/CYRCP-2020-009.378 Fulltext: PDF;
In : ICFA mini-Workshop on Mitigation of Coherent Beam Instabilities in Particle Accelerators (MCBI 2019), Zermatt, Switzerland, 23 - 27 Sep 2019, pp.378 (CERN-2020-009)
3.
The Stripline Kicker Prototype for the CLIC Damping Rings at ALBA: Installation, Commissioning and Beam Characterisation / Pont, Montserrat (CELLS - ALBA, LLS) ; Ayala, Nuria (CELLS - ALBA, LLS) ; Barnes, Michael (CERN) ; Belver-Aguilar, Carolina (CERN) ; Carlà, Michele (CELLS - ALBA, LLS) ; Günzel, Thomas (CELLS - ALBA, LLS) ; Iriso, Ubaldo (CELLS - ALBA, LLS) ; Martí, Zeus (CELLS - ALBA, LLS) ; Monge, Raquel (CELLS - ALBA, LLS) ; Olmos, Angel (CELLS - ALBA, LLS) et al.
The extraction system for the CLIC Damping Rings has very tight specifications. Therefore a full characterisation of the behaviour of the stripline kicker under conditions as close as possible to the expected working conditions will be very valuable. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-THPMF013 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.THPMF013
4.
Beam-based Impedance Characterization of the ALBA Pinger Magnet / Iriso, Ubaldo (CELLS - ALBA, LLS) ; Bartosik, Hannes (CERN) ; Günzel, Thomas (CELLS - ALBA, LLS) ; Koukovini-Platia, Eirini (CERN) ; Rumolo, Giovanni (CERN)
The ALBA pinger magnet consists on two short kickers (for horizontal and vertical planes) installed in a single Titanium coated ceramic vacuum chamber. Single bunch measurements in the vertical plane were performed in the ALBA Synchrotron Light Source before and after the pinger installation, and by comparing the Transverse Mode Coupling Instability (TMCI) thresholds for zero chromaticity, we infer the pinger impedance and compare it with the model predictions. [...]
CERN-ACC-2015-350.- 2015 - 4 p. - Published in : (2015) , pp. MOPJE027 Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.MOPJE027
5.
Analysis of Single Bunch Measurements at the ALBA Storage Ring / Günzel, Thomas (CELLS - ALBA, LLS) ; Iriso, Ubaldo (CELLS - ALBA, LLS) ; Pérez, Francis (CELLS - ALBA, LLS) ; Koukovini-Platia, Eirini (CERN) ; Rumolo, Giovanni (CERN)
Measurements of the vertical single bunch mode detuning and the TMCI threshold at zero chromaticity were carried out and their results were compared to the theoretical expectation. Around 65% of the found mode detuning can be explained by a developed transverse impedance model. [...]
2014 - 3 p. - Published in : , pp. TUPRI052 Fulltext: PDF; External link: Published version from JACoW
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.TUPRI052
6.
Impedance and Instabilities for the ALBA Storage Ring / Günzel, T F (CELLS - ALBA, LLS) ; Pérez, F (CELLS - ALBA, LLS)
2008 - 3 p. External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.TUPP037
7.
Closed Orbit Correction and Beam Dynamics Issues at ALBA / Muñoz, Marc (ALBA, Bellaterra) ; Einfeld, Dieter (ALBA, Bellaterra) ; Günzel, Thomas Friedrich (ALBA, Bellaterra)
2006 - 3 p. External link: Published version from JACoW
In : 10th European Particle Accelerator Conference, Edinburgh, UK, 26 - 30 Jun 2006, pp.3404
8.
BPM Design for the ALBA Synchrotron / Pérez, Francisco (ALBA, Bellaterra) ; Günzel, Thomas Friedrich (ESRF, Grenoble) ; Olmos, Angel (ALBA, Bellaterra)
2006 - 3 p. External link: Published version from JACoW
In : 10th European Particle Accelerator Conference, Edinburgh, UK, 26 - 30 Jun 2006, pp.1190
9.
Evolution of the Machine Impedance following the ESRF Upgrade to Low-Gap NEG Coated Aluminium Chambers / Günzel, Thomas F ; Farvacque, Laurent ; Perron, Thomas ; Revol, Jean Luc
2005 - 3 p. External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1712
10.
Mastering of Beam Losses at the ESRF / Günzel, T ; Weinrich, U ; Filhol, J M ; Naylor, G
1998 External links: Abstract from JACoW; Published version from JACoW
In : 6th European Particle Accelerator Conference, Stockholm, Sweden, 22 - 26 Jun 1998, pp.e-proc. 1374

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17 Günzel, T F
3 Günzel, Thomas
1 Günzel, Thomas F
2 Günzel, Thomas Friedrich
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