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Cherenkov Diffraction Radiation as a tool for beam diagnostics
/ Lefèvre, Thibaut (CERN) ; Alves, Diogo (CERN) ; Apollonio, Marco (Diamond Light Source) ; Aryshev, Alexander (KEK, Tsukuba) ; Bergamaschi, Michele (CERN) ; Billing, Michael (Cornell U., CLASSE) ; Bleko, Vitol'd (Tomsk Polytechnic U.) ; Bobb, Lorraine (Diamond Light Source) ; Bordlemay Padilla, Yadira (Cornell U., CLASSE) ; Conway, Joseph (Cornell U., CLASSE) et al.
During the last three years, the emission of Cherenkov Diffraction Radiation (ChDR), appearing when a relativistic charged particle moves in the vicinity of a dielectric medium, has been investigated with the aim of providing non-invasive beam diagnostics. ChDR has very interesting properties, with a large number of photons emitted in a narrow and well-defined solid angle, providing excellent conditions for detection with very little background. [...]
2019 - 5 p.
- Published in : 10.18429/JACoW-IBIC2019-THAO01
Fulltext: PDF;
In : 8th International Beam Instrumentation Conference (IBIC 2019), Malmo, Sweden, 8 - 12 Sep 2019
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2.
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Recent Results on Non-invasive Beam Size Measurement Methods Based on Polarization Currents
/ Mazzoni, Stefano (CERN) ; Aryshev, Alexander (KEK, Tsukuba) ; Bergamaschi, Michele (CERN) ; Billing, Michael (Cornell U.) ; Bleko, Vitol'd (Tomsk Polytechnic U.) ; Bobb, Lorraine (Diamond Light Source) ; Conway, Joseph (Cornell U.) ; Forster, Michael (Cornell U.) ; Fuentes, Yadira (Cornell U.) ; Jones, Owain Rhodri (CERN) et al.
We present recent results on non-invasive beam profile measurement techniques based on Diffraction Radiation (DR) and Cherenkov Diffraction Radiation (ChDR). Both methods exploit the analysis of broadband electromagnetic radiation resulting from polarization currents produced in, or at the boundary of, a medium in close proximity of a charged particle beam. [...]
JACoW, 2019 - 4 p.
- Published in : 10.18429/JACoW-IBIC2018-WEPB14
Published fulltext: PDF;
In : 7th International Beam Instrumentation Conference, Shanghai, China, 9 - 13 Sep, 2018, pp.WEPB14
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3.
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Non-invasive Beam Diagnostics with Cherenkov Diffraction Radiation
/ Lefèvre, Thibaut (CERN) ; Bartnik, Laurel (Cornell U.) ; Bergamaschi, Michele (CERN) ; Billing, Michael (Cornell U.) ; Bleko, Vitol'd (Tomsk Polytechnic U.) ; Bobb, Lorraine (Diamond Light Source) ; Padilla Fuentes, Yadira (Cornell U.) ; Conway, Joseph (Cornell U.) ; Forster, Michael (Cornell U.) ; Jones, Owain Rhodri (CERN) et al.
Based on recent measurements of incoherent Cherenkov Diffraction Radiation (ChDR) performed on the Cornell Electron Storage Ring, we present here a concept for the centering of charged particle beams when passing close to dielectric material. This would find applications as beam instrumentation in dielectric capillary tubes, typically used in novel accelerating technologies, as well as in collimators using bent crystals for high-energy, high-intensity hadron beams, such as the Large Hadron Collid-er or Future Circular Collider. [...]
CERN-ACC-2018-108.-
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-WEPAF074
Fulltext: wepaf074 - PDF; wepaf074_2 - PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF074
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4.
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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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5.
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First Measurements of Cherenkov-Diffraction Radiation at Diamond Light Source
/ Harryman, Daniel (JAI, UK) ; Apollonio, Marco (Diamond Light Source) ; Bergamaschi, Michele (CERN) ; Bobb, Lorraine (Diamond Light Source) ; Karataev, Pavel (JAI, UK) ; Kieffer, Robert (CERN) ; Krupa, Michal (CERN) ; Lefèvre, Thibaut (CERN) ; Mazzoni, Stefano (CERN) ; Potylitsyn, Alexander (Tomsk Polytechnic U.)
Cherenkov Diffraction Radiation (ChDR), appearing when a charged particle moves in the vicinity of a dielectric medium with speed faster than the speed of light inside the medium, is a phenomenon that can be exploited for a range of non-invasive beam diagnostics. By using dielectric radiators that emit photons when in proximity to charged particle beams, one can design devices to measure beam properties such as position, direction and size. [...]
2019 - 5 p.
- Published in : 10.18429/JACoW-IBIC2019-WEPP037
Fulltext: PDF;
In : 8th International Beam Instrumentation Conference (IBIC 2019), Malmo, Sweden, 8 - 12 Sep 2019, pp.WEPP037
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6.
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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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7.
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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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Simulation of Cherenkov Diffraction Radiation for Various Radiator Designs
/ Łasocha, Kacper (CERN ; Jagiellonian U.) ; Harryman, Daniel (Royal Holloway, U. of London) ; Lefèvre, Thibaut (CERN) ; Mounet, Nicolas (CERN) ; Schloegelhofer, Andreas (Vienna, Tech. U. ; CERN)
Studies performed during the last few years at different facilities have indicated that the emission of Cherenkov Diffraction Radiation (ChDR) can be exploited for a range of non-invasive diagnostics. The question remains of how to choose an optimal dielectric material and which radiator shapes give the most promising results. [...]
2020 - 5 p.
- Published in : 10.18429/JACoW-IBIC2020-TUPP28
Fulltext: PDF;
In : 9th International Beam Instrumentation Conference, Online, 14 - 18 Sep 2020, pp.TUPP28
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Updated High-Energy LHC design
/ Zimmermann, Frank (CERN) ; Abelleira, Jose Luis (JAI, UK) ; Abramov, Andrey (JAI, UK ; Royal Holloway, U. of London) ; Amorim, David (CERN) ; Antipov, Sergey (CERN) ; Apyan, Armen (Yerevan Phys. Inst.) ; Arsenyev, Sergey (CERN) ; Barranco, Javier (Ecole Polytechnique, Lausanne) ; Benedikt, Michael (CERN) ; Bruce, Roderik (CERN) et al.
We present updated design parameters for a future High-Energy LHC. A more realistic turnaround time has led to a revision of the target peak luminosity, as well as a choice of a larger IP beta function, and longer physics fills. [...]
CERN-ACC-2019-089.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-MOPMP037
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPMP037
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10.
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Gamma Factory at CERN: Design of a proof-of-principle experiment
/ Dutheil, Yann (CERN) ; Alden, Siobhan (JAI, UK ; Royal Holloway, U. of London) ; Alemany-Fernández, Reyes (CERN) ; Apyan, Armen (Yerevan Phys. Inst.) ; Bartosik, Hannes (CERN) ; Bessonov, Evgeny (LPI, Moscow (main)) ; Biancacci, Nicolo (CERN) ; Bosco, Alessio (Royal Holloway, U. of London ; JAI, UK) ; Bruce, Roderik (CERN) ; Castelli, Fabrizio (INFN, Milan) et al.
The Gamma Factory (GF) initiative proposes to create novel research tools at CERN by producing, accelerating and storing highly relativistic partially stripped ion beams in the LHC rings and by exciting their atomic degrees of freedom by lasers, to produce high-energy photon beams. Their intensity would be several orders of magnitude higher than those of the presently operating light sources in the particularly interesting gamma-ray energy domain reaching up to 400 MeV. [...]
CERN-PBC-CONF-2021-009; CERN-ACC-2019-153.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-MOPRB052
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPRB052
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