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RIS citation export for WEP30: Creation of the First High-Inductance Sensor of the New CCC-Sm Series

AU  - Tympel, V.
AU  - Crescimbeni, L.
AU  - Haider, D.M.
AU  - Machalett, F.
AU  - Schmelz, M.
AU  - Schmidl, F.
AU  - Schwickert, M.
AU  - Schönau, T.
AU  - Seidel, P.
AU  - Sieber, T.
AU  - Stolz, R.
AU  - Stöhlker, T.
AU  - Zakosarenko, V.
ED  - Forck, Peter
ED  - Wawrzyniak, Adriana
ED  - Schaa, Volker R.W.
ED  - Kowalski, Grzegorz W.
ED  - Cudek, Agnieszka (SOLARIS, Kraków
TI  - Creation of the First High-Inductance Sensor of the New CCC-Sm Series
J2  - Proc. of IBIC2022, Kraków, Poland, 11-15 September 2022
CY  - Kraków, Poland
T2  - International Beam Instrumentation Conference
T3  - 11
LA  - english
AB  - Cryogenic Current Comparators (CCC) are presently used at CERN-AD (100 mm beamline diameter) and in the FAIR project at CRYRING (150 mm beamline diameter) for non-destructive absolute measurement of beam currents below 20 ’A (current resolution 10 nA). Both sensor versions (CERN-Nb-CCC and FAIR-Nb-CCC-XD) use niobium as superconductor for the DC-transformer and magnetic shielding. The integrated flux concentrators have an inductance of below 100 ’H at 4.2 Kelvin. The new Sm-series (smart & small) is designed for a beamline diameter of 63 mm and uses lead for the superconducting shield. The first sensor (IFK-Pb-DCCC-Sm-200) has two core-based pickup coils (2x 100 µH at 4.2 K) and two SQUID units, to eliminate Barkhausen current jumps as part of the low frequency 1/f-noise. During the construction some basic experiments on noise behavior (fluctuation’dissipation theorem, white noise below 2 pA/sqrt(Hz)) and magnetic shielding (flux concentrator and shielding as LC circuit resonance , additional mu-metal shielding) were undertaken, the results of which are presented here. Finally, a current resolution of 500 pA could be achieved in the laboratory.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 469
EP  - 472
KW  - shielding
KW  - pick-up
KW  - cryogenics
KW  - resonance
KW  - antiproton
DA  - 2022/12
PY  - 2022
SN  - 2673-5350
SN  - 978-3-95450-241-7
DO  - doi:10.18429/JACoW-IBIC2022-WEP30
UR  - https://jacow.org/ibic2022/papers/wep30.pdf
ER  -