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CERN Document Server Znaleziono 2,051 rekordów  1 - 10następnykoniec  skocz do rekordu: Szukanie trwało 0.77 sekund. 
1.
Numerical investigation of space charge effects on the positions of beamlets for transversely split beams / Giovannozzi, M (CERN) ; Prior, C (Rutherford) ; Gilardoni, S (CERN) ; Huschauer, A (CERN) ; Hirlander, S (CERN ; Vienna, Tech. U.) ; Machida, S (Rutherford)
The use of transversely split beams was proposed some years ago as a means to perform extraction from a circular particle accelerator over multiple turns. In the course of studies carried out to increase understanding of the beam behavior, space charge effects have been probed. [...]
2017 - 11 p. - Published in : Phys. Rev. Accel. Beams 20 (2017) 121001 Fulltext: PDF;
2.
First observations of intensity-dependent effects for transversely split beams during multiturn extraction studies at the CERN Proton Synchrotron / Gilardoni, Simone (CERN) ; Giovannozzi, Massimo (CERN) ; Hernalsteens, Cédric (EPFL-ISIC, Lausanne ; CERN)
During the commissioning of the CERN Proton Synchrotron multiturn extraction, tests with different beam intensities were performed in order to probe the behavior of resonance crossing in the presence of possible space charge effects. The initial beam intensity before transverse splitting was varied and the properties of the five beamlets obtained by crossing the fourth-order horizontal resonance were studied. [...]
2013 - 13 p. - Published in : Phys. Rev. Spec. Top. Accel. Beams 16 (2013) 051001 APS Published version, local copy: PDF;
3.
Fixed Points in Presence of Space Charge in Circular Particle Accelerators / Giovannozzi, Massimo (CERN) ; Gilardoni, Simone (CERN) ; Huschauer, Alexander (CERN) ; Machida, Shinji (Rutherford) ; Prior, Christopher (Rutherford) ; Sheehy, Suzanne (Rutherford)
Recent measurements performed in the framework of the multi-turn extraction (MTE) studies showed a dependence of the position of beamlets obtained by crossing a stable transverse resonance on the total beam intensity. This novel observation has triggered a number of studies aiming at understanding the source of the observed effect. [...]
CERN-ACC-2015-339.- 2015 - 3 p. - Published in : (2015) , pp. MOPJE045 Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.MOPJE045
4.
Intensity effects in the formation of stable islands in phase space during the multi-turn extraction process at the CERN PS / Machida, Shinji (Rutherford) ; Prior, Chris (Rutherford) ; Gilardoni, Simone (CERN) ; Giovannozzi, Massimo (CERN) ; Hirlander, Simon (CERN ; TU Vienna) ; Huschauer, Alexander (CERN ; TU Vienna)
The CERN PS utilises a Multi-Turn Extraction (MTE) scheme to stretch the beam pulse length to optimise the filling process of the SPS. MTE is a novel technique to split a beam in transverse phase space into nonlinear stable islands. [...]
CERN-ACC-2016-0102.- Geneva : CERN, 2016 - 5 p. - Published in : 10.18429/JACoW-HB2016-TUAM7X01 Fulltext: PDF; External link: Fulltext
In : 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams, Malmö, Sweden, 3 - 8 Jul 2016, pp.TUAM7X01
5.
First observations of intensity-dependent effects for transversely split beams during multi-turn extraction studies at the CERN proton synchrotron / Gilardoni, S (CERN) ; Giovannozzi, M (CERN) ; Hernalsteens, C (Ecole Polytechnique, Lausanne)
During the commissioning of the CERN PS Multi-Turn Extraction (MTE), tests with different beam intensities were performed in order to probe the behaviour of resonance crossing in the presence of possible space charge effects. [...]
CERN-ATS-2013-042.
- 2013. - 21 p.
Full text
6.
Advancing the CERN proton synchrotron multiturn extraction towards the high-intensity proton beams frontier / Huschauer, A (CERN) ; Bartosik, H (CERN) ; Cettour Cave, S (CERN) ; Coly, M (CERN) ; Cotte, D (CERN) ; Damerau, H (CERN) ; Di Giovanni, G P (CERN) ; Gilardoni, S (CERN) ; Giovannozzi, M (CERN) ; Kain, V (CERN) et al.
Complementary to the physics research at the LHC, several fixed-target facilities receive beams from the LHC injector complex. To serve the fixed-target physics programme at the super proton synchrotron, high-intensity proton beams from the proton synchrotron are extracted using the multiturn extraction technique based on trapping parts of the beam in stable resonance islands. [...]
2019 - 13 p. - Published in : Phys. Rev. Accel. Beams 22 (2019) 104002 Fulltext: PDF;
7.
First observations of intensity-dependent effects for transversally split beams / Gilardoni, S (CERN) ; Giovannozzi, M (CERN)
During the commissioning of the CERN PS Multi-Turn Extraction (MTE) tests with different beam intensities were performed. The initial beam current before transverse splitting was varied and the properties of the five beamlets obtained by crossing the fourth-order horizontal resonance were studied. [...]
CERN-ATS-2011-092.- Geneva : CERN, 2011 - 3 p. Fulltext: PDF; External link: Published version from JACoW
In : 2nd International Particle Accelerator Conference, San Sebastian, Spain, 4 - 9 Sep 2011, pp.MOPS016
8.
Analysis of Intensity-dependent Effects on LHC Transverse Tunes at Injection Energy / De Maria, Riccardo (CERN) ; Giovannozzi, Massimo (CERN) ; Persson, Tobias (CERN) ; Tomás, Rogelio (CERN) ; Wei, Yuanyuan (Beijing, Inst. High Energy Phys.)
The LHC Run I has provided a huge amount of data that can be used to deepen the understanding of the beam behaviour. In this paper the focus is on the analysis of transverse tunes at injection energy to detect signs of intensity-dependent effects. [...]
CERN-ACC-2015-254.- 2015 - 4 p. - Published in : (2015) , pp. TUPTY043 Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.TUPTY043
9.
Performance of Transverse Beam Splitting and Extraction at the CERN Proton Synchrotron in the Framework of Multi-turn Extraction / Sterbini, Guido (CERN) ; Borburgh, Jan (CERN) ; Damjanovic, Sanja (CERN) ; Gilardoni, Simone (CERN) ; Giovannozzi, Massimo (CERN) ; Hernalsteens, Cédric (CERN ; Ecole Polytechnique, Lausanne) ; Hourican, Michael (CERN) ; Huschauer, Alexander (CERN ; TU Vienna) ; Kahle, Karsten (CERN) ; Le Godec, Gilles (CERN) et al.
Considerable progress has been made in 2015 in the setting up of the multi-turn extraction (MTE) in the CERN Proton Synchrotron (PS). A key ingredient in this novel extraction technique is the beam splitting in transverse phase space. [...]
CERN-ACC-2016-174.- 2016 - 4 p. - Published in : 10.18429/JACoW-IPAC2016-THPMR043 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPMR043
10.
Innovative method to measure the extent of the stable phase-space region of proton synchrotrons / Maclean, E H (Malta U. ; CERN) ; Giovannozzi, M (CERN) ; Appleby, R B (Manchester U.)
The advent of circular accelerators based on superconducting magnets has revolutionized the field of beam dynamics, with particle motion turning from linear to nonlinear due to unavoidable high-order field errors generated by the ring magnets. Nonlinear dynamics was already well mastered, e.g., in the close field of celestial mechanics as similar problems had been considered and successfully tackled. [...]
2019 - 8 p. - Published in : Phys. Rev. Accel. Beams 22 (2019) 034002 Fulltext from Publisher: PDF;

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