Author: Takov, I.
Paper Title Page
TUPC163 Experimental Results from Test Measurements with the USR Beam Position Monitoring System 1416
 
  • J. Harasimowicz, C.P. Welsch
    Cockcroft Institute, Warrington, Cheshire, United Kingdom
  • J. Harasimowicz, I. Takov
    The University of Liverpool, Liverpool, United Kingdom
 
  Funding: Work supported by STFC, the EU under GA-ITN-215080, the Helmholtz Association and GSI under VH-NG-328.
A diagonal-cut capacitive pick-up (PU) was optimised for monitoring slow (v < 0.025c), long (~1 m) bunches consisting of only about 106 antiprotons at the future Ultra-low energy Storage Ring (USR). Ultra-low noise (0.5 nV/Hz0.5) FET pre-amplifiers are used to allow detection of the weak signals generated in the PU plates. The amplified signals are then digitized by a 16-bit, 200 MS/s ADC and processed in a digital manner. The following contribution presents the beam monitoring system as it was tested with a stretched-wire method and compares the measurements with the results from 3D electromagnetic simulations.