Author: Soby, L.     [Søby, L.]
Paper Title Page
TUPB01 The Installation and Commissioning of the AWAKE Stripline BPM 253
 
  • S. Liu, P.E. Dirksen, V.A. Verzilov
    TRIUMF, Vancouver, Canada
  • S.J. Gessner, F. Guillot-Vignot, D. Medina, L. Søby
    CERN, Geneva, Switzerland
 
  Funding: # TRIUMF contribution was supported by NSERC and CNRC
AWAKE (The Advanced Proton Driven Plasma Wakefield Acceleration Experiment at CERN) stripline BPMs are required to measure the position of the single electron bunch to a position resolution of less than 10 µm rms for electron charge of 100 pC to 1 nC. This paper describes the design, installation and commissioning of a such BPM system developed by TRIUMF (Canada). Total 12 BPMs and electronics had been installed on AWAKE beam lines and started commissioning since Fall of 2017. The calibration and measurement performance are also reviewed.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2018-TUPB01  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
TUPB14 New Beam Position Monitors for the CERN Linac3 to LEIR Ion Beam Transfer Line 293
 
  • L. Søby, G. Baud, M. Bozzolan, R. Scrivens
    CERN, Geneva, Switzerland
 
  The injection line into the CERN Low Energy Ion Ring (LEIR) has recently been equipped with nine, new, electrostatic Beam Position Monitors (BPMs) in order to measure and optimize the trajectory of the low intensity ion beams coming from LINAC3. In this paper, we describe the design of the BPM, the low noise charge amplifier mounted directly on the BPM, and the digital acquisition system. There is special emphasis on the first commissioning results where the measured beam positions were seen to be perturbed by EMI and charging of the BPM electrodes by secondary particles. The effect of mitigation measures, including repelling voltages on the electrodes and external magnetic fields, are also discussed.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2018-TUPB14  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)