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MOPTS054 |
Status of the CLEAR Electron Beam User Facility at CERN |
983 |
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- K.N. Sjobak, E. Adli, C.A. Lindstrøm
University of Oslo, Oslo, Norway
- M. Bergamaschi, S. Burger, R. Corsini, A. Curcio, S. Curt, S. Döbert, W. Farabolini, D. Gamba, L. Garolfi, A. Gilardi, I. Gorgisyan, E. Granados, H. Guerin, R. Kieffer, M. Krupa, T. Lefèvre, S. Mazzoni, G. McMonagle, N. Nadenau, H. Panuganti, S. Pitman, V. Rude, A. Schlogelhofer, P.K. Skowroński, M. Wendt, A.P. Zemanek
CERN, Geneva, Switzerland
- A. Lyapin
UCL, London, United Kingdom
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The CERN Linear Electron Accelerator for Research (CLEAR) has now finished its second year of operation, providing a testbed for new accelerator technologies and a versatile radiation source. Hosting a varied experimental program, this beamline provides a flexible test facility for users both internal and external to CERN, as well as being an excellent accelerator physics training ground. The energy can be varied between 60 and 220 MeV, bunch length between 1 and 4 ps, bunch charge in the range 10 pC to 2 nC, and number of bunches in the range 1 to 200, at a repetition rate of 0.8 to 10 Hz. The status of the facility with an overview of the recent experimental results is presented.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2019-MOPTS054
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About • |
paper received ※ 12 May 2019 paper accepted ※ 20 May 2019 issue date ※ 21 June 2019 |
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WEPGW077 |
Recent Results using Incoherent Cherenkov Diffraction Radiation for Non-Invasive Beam Diagnostics |
2654 |
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- M. Bergamaschi, R. Kieffer, T. Lefèvre, S. Mazzoni
CERN, Geneva, Switzerland
- A. Aryshev
KEK, Ibaraki, Japan
- P. Karataev
Royal Holloway, University of London, Surrey, United Kingdom
- P. Karataev, K. Lekomtsev
JAI, Egham, Surrey, United Kingdom
- A. Potylitsyn
TPU, Tomsk, Russia
- A. Schloegelhofer
TU Vienna, Wien, Austria
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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. An experimental test to study this technique for highly directional beam position measurement has been initiated on the CLEAR facility at CERN, whilst another experimental investigation is underway at the Accelerator Test Facility 2 (ATF2) at KEK, Japan, to measure the resolution limit of ChDR for beam imaging diagnostics. This contribution presents the latest experimental results from both of these test facilities.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2019-WEPGW077
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About • |
paper received ※ 01 May 2019 paper accepted ※ 20 May 2019 issue date ※ 21 June 2019 |
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