TY  - CONF
AU  - Tympel, V.
AU  - Golm, J.
AU  - Neubert, R.
AU  - Seidel, P.
AU  - Schmelz, M.
AU  - Stolz, R.
AU  - Zakosarenko, V.
AU  - Kurian, Febin
AU  - Schwickert, Marcus
AU  - Sieber, T.
AU  - Stöhlker, Thomas
TI  - The Next Generation of Cryogenic Current Comparators for Beam Monitoring
CY  - [Genf]
PB  - [CERN]
M1  - GSI-2017-01773
SN  - 978-3-95450-177-9
SP  - 441-444
PY  - 2017
N1  - Literaturangaben; "Proceedings of the 5th International Beam Instrumentation Conference" - Einstiegsseite (JACoW.org); English
AB  - A new Cryogenic Current Comparator with eXtendedDimensions (CCC-XD), compared to earlier versions builtfor GSI, is currently under development for a non-destructive,highly-sensitive monitoring of nA-intensities ofbeams for larger beamline diameters planned for the newFAIR accelerator facility at GSI. The CCC consists of a:1) flux concentrator,2) superconducting shield against external magneticfield and a3) superconducting toroidal coil of niobium which isread out by a4) Superconducting Quantum Interference Device(SQUID).The new flux concentrator (1) comprises a specially designedhighly-permeable core made of nano-crystallinematerial, in order to assure low-noise operation with highsystem bandwidth of up to 200 kHz. The superconductingshielding of niobium (2) is extended in its geometric dimensionscompared to the predecessor CCC and thus willsuppress (better -200 dB) disturbing magnetic fields of thebeamline environment more effectively. For the CCD-XDreadout, new SQUID sensors (4) with sub-μm Josephsonjunctions are used which enable the lowest possible noiselimitedcurrent resolution in combination with a good suppressionof external disturbances.The CCC-XD system, together with a new dedicated cryostat,will be ready for testing in the CRYRING at GSI inspring 2017. For the application of a CCC in the antiprotonstorage ring at CERN a pulse shape correction has been developedand tested in parallel. Results from electricalmeasurements of two components (1 and 4) of the newCCC-XD setup will be presented in this work.
T2  - 2016 International Beam Instrumentation Conference
CY  - 11 Sep 2016 - 15 Sep 2016, Barcelona (Spain)
Y2  - 11 Sep 2016 - 15 Sep 2016
M2  - Barcelona, Spain
KW  - Teilchenbeschleuniger (gnd)
KW  - Geladenes Teilchen (gnd)
KW  - Strahlüberwachung (gnd)
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
UR  - https://repository.gsi.de/record/208041
ER  -