CERN Accelerating science

CERN Document Server 2,025 εγγραφές βρέθηκαν  1 - 10επόμενοτέλος  μετάβαση στην εγγραφή: Η έρευνα πήρε 0.32 δευτερόλεπτα. 
1.
Recent advances in the CERN PS impedance model and instability simulations following the LHC Injectors Upgrade project / Joly, S (Rome U. ; CERN) ; Oeftiger, A (Darmstadt, GSI) ; Iadarola, G (CERN) ; Zannini, C (CERN) ; Migliorati, M (Rome U.) ; Mounet, N (CERN) ; Salvant, B (CERN)
Transverse instability growth rates in the CERN ProtonSynchrotron (PS) are studied thanks to the recently updatedimpedance model of the machine. Using this model, macroparticletracking simulations were performed with a new method well-suitedfor the slicing of short wakes, which achieves comparableperformance to the originally implemented method while reducing therequired number of slices by a factor of 5 to 10. [...]
2024 - 24 p. - Published in : JINST 19 (2024) P04018 Fulltext: PDF;
In : 68th ICFA Advanced Beam Dynamics workshop on high-Intensity and High-Brightness Hadron Beams (HB 2023), CERN, Geneva, Switzerland, 9 - 13 Oct 2023, pp.P04018
2.
Simulated Growth Rates for Single-Bunch Instabilities Driven by a Resistive Impedance / Towne, N
2003 - 3 p. External link: Published version from JACoW
In : 20th IEEE Particle Accelerator Conference, Portland, OR, USA, 12 - 16 May 2003, pp.3168
3.
Proton-synchrotron accelerator theory / Wilson, Edmund J N (CERN)
CERN-77-07.- Geneva : CERN, 1975 - 49 p. CERN Academic Training Lecture, 80; CERN Yellow Reports: Monographs Fulltext: PDF;
In : Academic Training Lectures, CERN, Geneva, Switzerland, 1 Sep 1975 - 30 Jun 1976
4.
Threshold and growth rate of resistive wall instabilities for double and triple batch injection
CERN-SPS-Improvement-Report-152 ; CERN-SPS-ABM-RB-jf - 1979. - 14 p.
5.
Instability Growth Rate Calculations for High Energy Storage Rings / Siemann, R
1981 External link: Published version from JACoW
In : 9th Particle Accelerator Conference, Washington, DC, USA, 11 - 13 Mar 1981, pp.2437
6.
Head tail instability observation and studies at the proton synchrotron booster / Quatraro, D (CERN) ; Findlay, A (CERN) ; Mikulec, B (CERN) ; Rumolo, G (CERN)
Since many years the Proton Synchrotron Booster (PSB) high intensity beams have shown head tail instabilities in all of the four rings at around 100 ms after the injection. In this paper we present the latest observations together with the evaluation of the instability rise time and its dependence on the bunch intensity. [...]
CERN-ATS-2010-071.- Geneva : CERN, 2010 - 3 p. Fulltext: PDF; External link: Published version from JACoW
In : 1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.TUPD047
7.
Head-tail mode zero instability growth rate studies in the CERN SPS / de la Fuente, E (CERN) ; Mases, I (CERN) ; Bartosik, H (CERN) ; Zannini, C (CERN)
The Head-Tail mode 0 instability growth rate is related to the real part of the transverse beam coupling impedance. The SPS transverse impedance model, which includes the major impedance contributions in the machine, can be benchmarked through measurements of growth rate as function of chromaticity [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) WEPL155 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPL155
8.
Assessment of the real part of the impedance of the LHC collimators with instability growth rate measurements / Giacomel, Lorenzo (CERN) ; Lindstrom, Bjorn (CERN ; Royal Holloway, U. of London) ; Iadarola, Giovanni (CERN) ; Rumolo, Giovanni (CERN) ; Mounet, Nicolas (CERN) ; Bruce, Roderik (CERN) ; Buffat, Xavier (CERN)
The impedance of the Large Hadron Collider (LHC) is a source of instabilities and has to be monitored closely. It is usually assessed by measuring the tune-shift vs intensity, in particular at top energy where it is the most critical, as the collimators are the closest to the beam. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) THPC57 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPC57
9.
Recent Advances in the CERN PS Impedance Model and Instability Simulations / Joly, Sébastien (U. Rome La Sapienza (main) ; CERN ; istituto nazionale di fisica nucleare) ; Iadarola, Giovanni (CERN) ; Migliorati, Mauro (U. Rome La Sapienza (main)) ; Mounet, Nicolas (CERN) ; Salvant, Benoit (CERN) ; Zannini, Carlo (CERN)
Transverse instability growth rates in the CERN Proton Synchrotron are studied thanks to the recently updated impedance model of the machine. Using this model, macroparticle tracking simulations were performed with a new method well-suited for the slicing of short wakes, which achieves comparable performance to the originally implemented method while reducing the required number of slices by a factor of 5 to 10. [...]
2024 - 5 p. - Published in : JACoW HB 2023 (2024) 86-90 Fulltext: PDF;
In : 68th ICFA Advanced Beam Dynamics workshop on high-Intensity and High-Brightness Hadron Beams (HB 2023), CERN, Geneva, Switzerland, 9 - 13 Oct 2023, pp.86-90
10.
Impedance-induced beam observables in the CERN Proton Synchrotron / Joly, S (Rome U.) ; Migliorati, M (Rome U. ; CERN) ; Delrieux, M (CERN) ; Imesch, G (CERN) ; Mounet, N (CERN) ; Salvant, B (CERN)
Impedance-induced tune shifts and instability growth rates in the CERN Proton Synchrotron are studied thanks to the recently updated impedance model of the machine. Calculation of these beam observables are obtained using both Vlasov solvers and macroparticle tracking simulations, and are compared with those observed during dedicated measurement campaigns. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) WEPL149 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPL149

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