2019-10-16
07:36 |
LHC optics measurement and correction software progress and plans
/ Tomás, Rogelio (CERN) ; Cardona, Javier (Colombia, U. Natl.) ; Carlier, Felix (CERN) ; Coello, Jaime (CERN) ; Dilly, Joschua (CERN) ; Fol, Elena (CERN) ; Garcia-Tabares, Ana (CERN) ; Hofer, Michael (CERN) ; Maclean, Ewen (CERN) ; Malina, Lukas (CERN) et al.
LHC Optics Measurements and Corrections (OMC) require efficient on-line software applications to acquire and analyze data and to compute the necessary corrections. During Run 2 various measurement and correction techniques have been merged to yield unprecedented optics quality, increasing the required number of steps to finalize the optics commissioning and the size of the software project. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPGW116
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW116
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2019-10-16
07:36 |
Commissioning of the prototype for a new gas curtain beam profile monitor using beam induced fluorescence for HL-LHC
/ Salehilashkajani, Amir (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Ady, Marton (CERN) ; Chritin, Nicolas (CERN) ; Forck, Peter (Darmstadt, GSI) ; Glutting, Johanna (CERN) ; Jones, Owain Rhodri (CERN) ; Kersevan, Roberto (CERN) ; Marriott-Dodington, Thomas (CERN) ; Mazzoni, Stefano (CERN) ; Rossi, Adriana (CERN) et al.
A new supersonic gas-jet curtain based beam profile monitor is under development for minimally invasive simultaneous transverse profile diagnostics of proton and electron beams, at pressures compatible with LHC. The monitor makes use of a thin gas-jet curtain angled at 45° with respect to the charged particle beams. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPGW093
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW093
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2019-10-16
07:36 |
Emittance evolution of low energy antiproton beams in the presence of deceleration and cooling
/ Hunt, James (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Carli, Christian (CERN) ; Dupuy, Bruno (CERN) ; Gamba, Davide (CERN) ; Resta-López, Javier (Cockcroft Inst. Accel. Sci. Tech. ; U. Liverpool (main)) ; Welsch, Carsten (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.)
The commissioning of the Extra Low Energy Antiproton (ELENA) [1] ring was completed before the start of the second long shutdown (LS2) at CERN. First beams to an experiment in a new experimental zone have also already been delivered. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPGW090
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW090
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2019-10-16
07:36 |
Calibration of the AWAKE electron spectrometer with electrons derived from a partially stripped ion beam
/ Cooke, David (University Coll. London) ; Alemany-Fernández, Reyes (CERN) ; Bauche, Jeremie (CERN) ; Cascella, Michele (University Coll. London) ; Chappell, James (University Coll. London) ; Gorgisyan, Ishkhan (CERN) ; Gschwendtner, Edda (CERN) ; Jolly, Simon (University Coll. London) ; Kain, Verena (CERN) ; Keeble, Fearghus (University Coll. London) et al.
The electron spectrometer for the Advanced Wakefield (AWAKE) experiment at CERN has been tested using an electron beam derived from partially-stripped ions accelerated in the Super Proton Synchrotron (SPS). The remaining electrons are stripped by passage of the beam through a thin screen upstream from the spectrometer, and using knowledge of the ion beam charge and energy, models of the spectrometer response could be verified..
2019 - 3 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPGW089
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW089
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2019-10-16
07:36 |
Characterisation of electro-optic pickups for high bandwidth diagnostics at the High Luminosity LHC
/ Arteche, Alberto (JAI, UK ; Royal Holloway, U. of London) ; Bashforth, Sophie (JAI, UK ; Royal Holloway, U. of London) ; Bosco, Alessio (JAI, UK ; Royal Holloway, U. of London) ; Gibson, Stephen (JAI, UK ; Royal Holloway, U. of London) ; Krupa, Michal (CERN) ; Lefèvre, Thibaut (CERN) ; Penman, Inada (JAI, UK ; Royal Holloway, U. of London)
A high bandwidth electro-optical beam position monitor is under development for the High Luminosity LHC. A series of measurements of the electro-optic signals were previously obtained by an EO-BPM prototype installed in the SPS. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPGW088
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW088
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2019-10-16
07:36 |
Measuring beam size with the LHC Beam Gas Vertex detector
/ Würkner, Benedikt (CERN) ; Alexopoulos, Andreas (CERN) ; Barschel, Colin (CERN) ; Bay, Aurelio (Ecole Polytechnique, Lausanne) ; Blanc, Frederic (Ecole Polytechnique, Lausanne) ; Bravin, Enrico (CERN) ; Bregliozzi, Giuseppe (CERN) ; Chritin, Nicolas (CERN) ; Dehning, Bernd (CERN) ; Ferro-Luzzi, Massimiliano (CERN) et al.
The Beam Gas Vertex detector (BGV) is an innovative beam profile monitor being developed as part of the High Luminosity LHC (HL-LHC) project at CERN. The goal is to continually measure the transverse beam size by reconstructing tracks originating from beam-gas interactions using high precision tracking detectors. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPGW084
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW084
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2019-10-16
07:36 |
The Beam Gas Vertex profile monitoring station for HL-LHC
/ Kieffer, Robert (CERN ; Royal Holloway, U. of London) ; Alexopoulos, Andreas (CERN ; Thessaly U.) ; Fosse, Loic (CERN) ; Gibson, Stephen (Royal Holloway, U. of London ; CERN) ; Gonzalez Berges, Manuel (CERN) ; Guerin, Helene (CERN ; Royal Holloway, U. of London) ; Jones, Owain Rhodri (CERN) ; Marriott-Dodington, Thomas (CERN) ; Storey, James (CERN) ; Veness, Raymond (CERN) et al.
A new instrument is under development for the High Luminosity upgrade of the Large Hadron Collider at CERN (HL-LHC) to provide non-invasive transverse beam size measurements throughout the full acceleration cycle. The Beam Gas Vertex (BGV) monitor consists of a tank supplied with gas at very low pressure attached to the LHC beam pipe with a series of particle tracking stations located downstream outside vacuum. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPGW082
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW082
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2019-10-16
07:36 |
Development of supersonic gas-sheet-based beam profile monitors
/ Zhang, Hao (Cockcroft Inst. Accel. Sci. Tech. ; U. Liverpool (main)) ; Ady, Marton (CERN) ; Forck, Peter (Darmstadt, GSI) ; Glutting, Johanna (CERN) ; Jones, Owain Rhodri (CERN) ; Marriott-Dodington, Thomas (CERN) ; Mazzoni, Stefano (CERN) ; Rossi, Adriana (CERN) ; Salehilashkajani, Amir (Cockcroft Inst. Accel. Sci. Tech. ; U. Liverpool (main)) ; Schneider, Gerhard (CERN) et al.
Non-destructive beam profile monitoring is very desirable, essentially for any particle accelerator but particularly for high-energy and high-intensity machines. Supersonic gas jet-based monitors, detecting either the ionization or fluorescence of a gas sheet interacting with the primary beam to be characterized, allow for minimally invasive measurements. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPGW096
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW096
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2019-10-16
07:36 |
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2019-10-16
07:36 |
Development and test of a beam imaging system based on radiation tolerant optical fiber bundles
/ Celeste, Damiano (CERN) ; Bravin, Enrico (CERN) ; Burger, Stephane (CERN) ; Roncarolo, Federico (CERN)
Many of the beam imaging systems at CERN are located in high radiation environments. In order to cope with this issue, VIDICON cameras are presently used, but their production has been discontinued worldwide. [...]
2019 - 3 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPGW078
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW078
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