Author: Seidel, P.
Paper Title Page
TUPC075 Diagnostic Devices for Beam Intensity Measurement at FAIR 1174
 
  • M. Schwickert, T. Hoffmann, F. Kurian, H. Reeg
    GSI, Darmstadt, Germany
  • R. Geithner, W. Vodel
    HIJ, Jena, Germany
  • R. Neubert, P. Seidel
    FSU Jena, Jena, Germany
 
  Funding: Work supported by EU, DITANET, Project No. ITN-2008-215080.
Precise determination of beam intensity is important for any accelerator facility. At FAIR, the Facility for Antiproton and Ion Research presently in the planning phase at GSI, the requirements set by beam intensities in the various accelerators, storage rings and transport lines differ significantly. A set of beam diagnostic instruments is foreseen to detect the large variety of ion beams ranging from less than 104 antiprotons up to high intensity of 5·1011 uranium ions. This contribution presents an overview of destined current measurement devices, both intercepting, like scintillators, ionization chambers or secondary electron monitors, and non-intercepting current-transformer type devices. Ongoing developments are discussed for non-intercepting devices, i.e. a dc current transformer with large dynamic range and a cryogenic current comparator, purpose-built for the detection of lowest beam intensities at FAIR.