TY - CPAPER AU - Fernandes, M.F. AU - Tan, J. AU - Welsch, C.P. TI - A Cryogenic Current Comparator for the Low Energy Antiproton Facitities at CERN J2 - Proc. of IBIC2014 AB - Several laboratories have shown the potential of using Superconducting QUantum Interference Device (SQUID) magnetometers together with superconductor magnetic shields to measure beam current intensities in the sub-micro-Ampere regime. CERN, in collaboration with GSI, Jena university and Helmholtz Institute Jena, is currently working on developing an improved version of such a current monitor for the Antiproton Decelerator (AD) and Extra Low ENergy Antiproton (ELENA) rings at CERN, aiming for better current resolution and overall system availability. This contribution will present the current design, including theoretical estimation of the current resolution; stability limits of SQUID systems and adaptation of the coupling circuit to the AD beam parameters; the analysis of thermal and mechanical cryostat modes. PB - JACoW CY - Geneva, Switzerland SP - 530 EP - 535 KW - pick-up KW - coupling KW - cryogenics KW - feedback KW - antiproton DA - 2014/10 PY - 2014 SN - 978-3-95450-141-0 UR - http://jacow.org/IBIC2014/papers/wepf04.pdf ER -