Author: Seidel, P.
Paper Title Page
THPME122 A SQUID-based Beam Current Monitor for FAIR 3524
 
  • R. Geithner, T. Stöhlker, W. Vodel
    HIJ, Jena, Germany
  • R. Geithner, R. Neubert, P. Seidel
    FSU Jena, Jena, Germany
  • F. Kurian, H. Reeg, M. Schwickert
    GSI, Darmstadt, Germany
  • T. Stöhlker
    IOQ, Jena, Germany
 
  A Cryogenic Current Comparator (CCC) was developed for the upcoming FAIR-Project, providing a non-destructive online monitoring of the beam current in the nA-range. The CCC was optimized for a lowest possible noise-limited current resolution together with a high system bandwidth. Therefore, the low temperature properties of ferromagnetic core materials used in the pick-up coil were investigated and different SQUID-systems were tested. In this contribution we present results of the completed Cryogenic Current Comparator for FAIR working in a laboratory environment, regarding the improvements in resolution and bandwidth due to the use of suitable ferromagnetic core materials and optimized SQUID-system components.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME122  
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