Author: Bravin, E.
Paper Title Page
MOPMR027 Employing Beam-Gas Interaction Vertices for Transverse Profile Measurements 296
SUPSS073   use link to see paper's listing under its alternate paper code  
 
  • M.N. Rihl, A. Alexopoulos, V. Baglin, C. Barschel, E. Bravin, G. Bregliozzi, N. Chritin, B. Dehning, M. Ferro-Luzzi, C. Gaspar, M. Giovannozzi, R. Jacobsson, L.K. Jensen, O.R. Jones, N.J. Jurado, V. Kain, M. Kuhn, B. Luthi, P. Magagnin, R. Matev, N. Neufeld, J. Panman, V. Salustino Guimaraes, B. Salvant, R. Veness, S. Vlachos
    CERN, Geneva, Switzerland
  • A. Bay, F. Blanc, S. Gianì, G.J. Haefeli, P. Hopchev, T. Nakada, B. Rakotomiaramanana, O. Schneider, M. Tobin, Q.D. Veyrat, Z. Xu
    EPFL, Lausanne, Switzerland
  • R. Greim, W. Karpinski, T. Kirn, S. Schael, G. Schwering, M. Wlochal, A. von Dratzig
    RWTH, Aachen, Germany
 
  Interactions of high-energy beam particles with residual gas offer a unique opportunity to measure the beam profile in a non-intrusive fashion. Such a method was successfully pioneered* at the LHCb experiment using a silicon microstrip vertex detector. During the recent Large Hadron Collider shutdown at CERN, a demonstrator Beam-Gas Vertexing system based on eight scintillating-fibre modules was designed**, constructed and installed on Ring 2 to be operated as a pure beam diagnostics device. The detector signals are read out and collected with LHCb-type front-end electronics and a DAQ system consisting of a CPU farm. Tracks and vertices will be reconstructed to obtain a beam profile in real time. Here, first commissioning results are reported. The advantages and potential for future applications of this technique are discussed.
* LHCb collaboration, Journal of Instrumentation, 9, P12005
** P. Hopchev in Proc. of IPAC 2014, June 15-20, 2014, Dresden Germany
 
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMR027  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
MOPMR030 Performance of the Upgraded Synchrotron Radiation Diagnostics at the LHC 306
 
  • G. Trad, E. Bravin, A. Goldblatt, S. Mazzoni, F. Roncarolo
    CERN, Geneva, Switzerland
  • T.M. Mitsuhashi
    KEK, Ibaraki, Japan
 
  During the LHC long shut down in 2014, the transverse beam size diagnostics based on synchrotron radiation was upgraded in order to cope with the increase of the LHC beam energy to 6.5 TeV. The wavelength used for imaging was shifted to near ultra-violet to reduce the contribution of diffraction to the system resolution, while in parallel, a new diagnostic system based on double slit interferometry was installed to measure the beam size by studying the spatial coherence of the emitted synchrotron radiation. This method has never been implemented before in a proton machine. A Hartmann mask was also installed to identify possible wavefront distortions that could affect the system accuracy. This paper will focus on the comparison of visible and the near ultra-violet imaging and on the first experience with interferometry.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMR030  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
TUPMR023 First Operational Experience of HIE-Isolde 1284
 
  • J.A. Rodriguez, N. Bidault, E. Bravin, R. Catherall, E. Fadakis, P. Fernier, M.A. Fraser, M.J. Garcia Borge, K. Hanke, K. Johnston, Y. Kadi, M. Kowalska, M.L. Lozano Benito, E. Matli, S. Sadovich, E. Siesling, W. Venturini Delsolaro, F.J.C. Wenander
    CERN, Geneva, Switzerland
  • M. Huyse, P. Van Duppen
    KU Leuven, Leuven, Belgium
  • J. Pakarinen
    JYFL, Jyväskylä, Finland
  • E. Rapisarda
    PSI, Villigen PSI, Switzerland
  • M. Zielinska
    Warsaw University, Warsaw, Poland
 
  The High Intensity and Energy ISOLDE project (HIE-ISOLDE)* is a major upgrade of the ISOLDE facility at CERN. The energy range of the post-accelerator will be extended from 2.85 MeV/u to 9.3 MeV/u for beams with A/q = 4.5 (and to 14.3 MeV/u for A/q = 2.5) once all the cryomodules of the superconducting accelerator are in place. The project has been divided into different phases, the first of which (phase 1a) finished in October 2015 after the hardware and beam commissioning were completed**. The physics campaign followed with the delivery of both radioactive and stable beams to two different experimental stations. The characteristics of the beams (energies, intensities, time structure and beam contaminants) and the plans for the next experimental campaign will be discussed in this paper.
* The HIE-ISOLDE Project, Journal of Physics: Conference Series 312.
** HIE-ISOLDE First Commissioning Experience, IPAC'16
** Beam Commissioning of the HIE-ISOLDE Post-Accelerator, IPAC'16
 
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMR023  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEOBA01 Beam Commissioning of the HIE-ISOLDE Post-Accelerator 2045
 
  • J.A. Rodriguez, W. Andreazza, J.M. Bibby, N. Bidault, E. Bravin, J.C. Broere, E.D. Cantero, R. Catherall, V. Cobham, M. Elias, E. Fadakis, P. Fernier, M.A. Fraser, F. Gerigk, K. Hanke, Y. Kadi, M.L. Lozano Benito, E. Matli, S. Sadovich, E. Siesling, D. Valuch, W. Venturini Delsolaro, F.J.C. Wenander, P. Zhang
    CERN, Geneva, Switzerland
 
  Phase 1a of the High Intensity and Energy ISOLDE (HIE-ISOLDE) project* was completed in 2015. The first cryomodule and two High Energy Beam Transfer lines (HEBT) were installed. In addition, many of the subsystems of the normal conducting part of the post-accelerator (REX) were renovated or refurbished. Following the hardware commissioning of the different system** and, in preparation for the start of the physics program, many tests and measurements were conducted as part of the beam commissioning program. The results of these tests and the plan for the next beam commissioning campaign are discussed in this paper.
* Y. Kadi et al., "The HIE-ISOLDE Project", Journal of Physics: Conference Series 312.
** W. Venturini et al., "HIE-ISOLDE First Commissioning Experience", IPAC'16
 
slides icon Slides WEOBA01 [1.437 MB]  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEOBA01  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEPMB051 HIE-ISOLDE: First Commissioning Experience 2230
 
  • W. Venturini Delsolaro, E. Bravin, N. Delruelle, M. Elias, J.A. Ferreira Somoza, M.A. Fraser, J. Gayde, Y. Kadi, G. Kautzmann, F. Klumb, Y. Leclercq, M. Martino, V. Parma, J.A. Rodriguez, S. Sadovich, E. Siesling, D. Smekens, L. Valdarno, D. Valuch, P. Zhang
    CERN, Geneva, Switzerland
 
  The HIE ISOLDE project [1] reached a major milestone in October 2015, with the start of the first physics run with radioactive ion beams. This achievement was the culminating point of intense months during which the first cryomodule of the HIE ISOLDE superconducting Linac and its high-energy beam transfer lines were first installed and subsequently brought into operation. Hardware commissioning campaigns were conducted in order to define the envelope of parameters within which the machine could be operated, to test and validate software and controls, and to investigate the limitations preventing the systems to reach their design performance. Methods and main results of the first commissioning of HIE ISOLDE post accelerator, including the performance of the superconducting cavities with beam, will be reviewed in this contribution.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEPMB051  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)