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Electron beam studies on a beam position monitor based on Cherenkov diffraction radiation
/ Pakuza, Collette (JAI, UK) ; Malyzhenkov, Alexander (CERN) ; Schloegelhofer, Andreas (CERN) ; Aksoy, Avni (CERN) ; Spear, Bethany (JAI, UK) ; Senes, Eugenio (CERN) ; Lasocha, Kacper (CERN) ; Wendt, Manfred (CERN) ; Krupa, Michal (CERN) ; Chritin, Nicolas (CERN) et al.
A beam position monitor based on Cherenkov diffraction radiation (ChDR BPM) is currently under investigation to disentangle the electromagnetic field of an electron bunch from that of a proton bunch travelling together in time and space in the beam-line of the AWAKE plasma acceleration experiment at CERN. The signals from a horizontal pair of ChDR BPM radiators have been studied under a variety of beam conditions at the CLEAR electron beam test facility. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPL146
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPL146
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2.
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A Beam Position Monitor for Electron Bunch Detection in the Presence of a More Intense Proton Bunch for the AWAKE Experiment
/ Pakuza, Collette (JAI, UK) ; Burrows, Philip (JAI, UK) ; Corsini, Roberto (CERN) ; Farabolini, Wilfrid (CERN) ; Korysko, Pierre (CERN) ; Krupa, Michal (CERN) ; Lefèvre, Thibaut (CERN) ; Mazzoni, Stefano (CERN) ; Senes, Eugenio (CERN) ; Wendt, Manfred (CERN)
The Advanced Proton Driven Plasma Wakefield Experiment (AWAKE) at CERN uses 6 cm long proton bunches extracted from the Super Proton Synchrotron (SPS) at 400 GeV beam energy to drive high gradient plasma wakefields for the acceleration of electron bunches to 2 GeV within a 10 m length. Knowledge and control of the position of both copropagating beams is crucial for the operation of the experiment. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 381-384
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.381-384
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3.
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Experimental Verification of Several Theoretical Models for ChDR Description
/ Łasocha, Kacper (Jagiellonian U. (main)) ; Davut, Can (U. Manchester (main)) ; Karataev, Pavel (Royal Holloway, U. of London) ; Lefèvre, Thibaut (CERN) ; Mazzoni, Stefano (CERN) ; Pakuza, Collette (Oxford U.) ; Schloegelhofer, Andreas (TU Vienna) ; Senes, Eugenio (CERN)
In recent years the potential of using Cherenkov Diffraction Radiation (ChDR) as a tool for non-invasive beam diagnostics has been thoroughly investigated. Although several theoretical models of ChDR have been developed, differences in their assumptions result in inconsistent predictions. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2420-2423
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2420-2423
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4.
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Selective electron beam sensing through coherent Cherenkov diffraction radiation
/ Senes, E (CERN) ; Krupa, M (CERN) ; Mazzoni, S (CERN) ; Lasocha, K (CERN) ; Lefevre, T (CERN) ; Shloegelhofer, A (CERN) ; Wendt, M (CERN) ; Davut, C (Manchester U.) ; Karataev, P (JAI, UK) ; Pakuza, C (JAI, UK) et al.
We exploit the coherent emission of Cherenkov diffraction radiation (ChDR) by a relativistic electron beam to sense its position even in the presence of other particle beams. ChDR is produced in alumina inserts embedded in the vacuum chamber walls and recorded in a narrow band centered at 30 GHz. [...]
2024 - 6 p.
- Published in : Phys. Rev. Res. 6 (2024) 023278
Fulltext: PDF;
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5.
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Feasibility Study of ChDR Diagnostic Device in the LHC
/ Łasocha, Kacper (Jagiellonian U. ; CERN) ; Bergamaschi, Michele (CERN ; Munich, Max Planck Inst.) ; Harryman, Daniel M (JAI, UK) ; Karataev, Pavel (JAI, UK) ; Krupa, Michal (CERN) ; Lefèvre, Thibaut (CERN) ; Mazzoni, Stefano (CERN) ; Mounet, Nicolas (CERN) ; Potylitsyn, Alexander (Tomsk Polytechnic U.) ; Schloegelhofer, Andreas (TU Vienna ; CERN) et al.
In recent years Cherenkov Diffraction Radiation (ChDR) has been reported as a phenomenon suitable for various types of particle accelerator diagnostics. As it would typically work best for highly relativistic beam, past studies and experiments have been mostly focusing on the lepton machines. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 2139-2142
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.2139-2142
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6.
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Beam Position Detection of a Short Electron Bunch in Presence of a Longer and More Intense Proton Bunch for the AWAKE Experiment
/ Senes, Eugenio (CERN) ; Burrows, Philip N (JAI, UK ; CERN) ; Corsini, Roberto (CERN) ; Farabolini, Wilfrid (CERN) ; Gilardi, Antonio (LBNL, Berkeley) ; Krupa, Michal (CERN) ; Lefèvre, Thibaut (CERN) ; Mazzoni, Stefano (CERN) ; Pakuza, Collette (CERN ; JAI, UK) ; Wendt, Manfred (CERN)
The AWAKE experiment studies the acceleration of electrons to multi-GeV levels driven by the plasma wakefield generated by an ultra-relativistic and high intensity proton bunch. The proton beam, being considerably more intense than the co-propagating electron bunch, perturbs the measurement of the electron beam position achieved via standard techniques. [...]
JACoW, 2021 - 5 p.
- Published in : JACoW IBIC 2021 (2021) 75-79
Fulltext: PDF;
In : 10th International Beam Instrumentation Conference (IBIC 2021), Online, Korea, 13 - 17 Sep 2021, pp.75-79
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7.
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Beam studies using a Cherenkov diffraction based beam position monitor for AWAKE
/ Spear, Bethany (JAI, UK) ; Pakuza, Collette (CERN) ; Senes, Eugenio (CERN) ; Wendt, Manfred (CERN) ; Burrows, Philip (JAI, UK) ; Mazzoni, Stefano (CERN) ; Lefevre, Thibaut (CERN)
A beam position monitor based on Cherenkov diffraction radiation (ChDR) is being investigated as a way to disentangle the signals generated by the electromagnetic fields of a short-pulse electron bunch from a long proton bunch co-propagating in the AWAKE plasma acceleration experiment at CERN. These ChDR BPMs have undergone renewed testing under a variety of beam conditions with proton and electron bunches in the AWAKE common beamline, at 3 different frequency ranges between 20-110 GHz to quantify the effectiveness of discriminating the electron beam position with and without proton bunches present. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) WEPG49
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPG49
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8.
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Recent results using incoherent Cherenkov Diffraction Radiation for non-invasive beam diagnostics
/ Bergamaschi, Michele (CERN) ; Aryshev, Alexander (KEK, Tsukuba) ; Karataev, Pavel (JAI, UK ; Royal Holloway, U. of London) ; Kieffer, Robert (CERN) ; Lefèvre, Thibaut (CERN) ; Lekomtsev, Konstantin (JAI, UK ; Royal Holloway, U. of London) ; Mazzoni, Stefano (CERN) ; Potylitsyn, Alexander (Tomsk Polytechnic U.) ; Schloegelhofer, Andreas (TU Vienna)
When a relativistic charged particle travels at a short distance from the surface of dielectric material Cherenkov Diffraction Radiation (ChDR) is produced inside the dielectric. Recent observation of incoherent ChDR in the visible spectrum has opened the possibility of using this radiation for non-invasive beam size and position measurements. [...]
CERN-ACC-2019-104.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPGW077
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW077
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9.
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Properties of Cherenkov Diffraction Radiation as Predicted by the Polarisation Currents Approach for Beam Instrumentation
/ Harryman, Daniel (Royal Holloway, U. of London) ; Bergamaschi, Michele (CERN) ; Bobb, Lorraine (Garsington, Oxfordshire) ; Fedorov, Kirill (Royal Holloway, U. of London) ; Karataev, Pavel (Royal Holloway, U. of London) ; Kieffer, Robert (CERN) ; Łasocha, Kacper (CERN) ; Lefèvre, Thibaut (CERN) ; Mazzoni, Stefano (CERN) ; Potylitsyn, Alexander (Tomsk Polytechnic U.) et al.
Cherenkov-Diffraction Radiation (ChDR) appears when a charged particle moves in the vicinity of a dielectric medium with velocity higher than the phase velocity of light inside the medium. As the charged particle does not contact the medium, the emission of ChDR is a phenomenon that can be exploited for a range of non-invasive beam diagnostics. [...]
2020 - 5 p.
- Published in : 10.18429/JACoW-IBIC2020-THPP05
Fulltext: PDF;
In : 9th International Beam Instrumentation Conference, Online, 14 - 18 Sep 2020, pp.THPP05
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10.
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A novel fibre optic monitor for VHEE UHDR beam monitoring: first tests at CLEAR
/ Bateman, Joseph (JAI, UK ; CERN) ; Buchanan, Emma (CERN) ; Corsini, Roberto (CERN) ; Gerbershagen, Alexander (Groningen U.) ; Ortega Ruiz, Inaki (CERN) ; Dosanjh, Manjit (JAI, UK ; CERN) ; Farabolini, Wilfrid (CERN) ; Rieker, Vilde (CERN ; Oslo U.) ; Korysko, Pierre (JAI, UK ; CERN) ; Malyzhenkov, Alexander (CERN)
Beam monitoring for Ultra High Dose Rate (UHDR) radiation therapy using pulsed beams, i.e. Very High Energy Electrons (VHEE), is a major challenge. [...]
2023
- Published in : JACoW IPAC 2023 (2023) THPL041
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPL041
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