TY  - CONF
AU  - Sieber, Thomas
AU  - Schmidl, Frank
AU  - Bräuning, Harald
AU  - Tan, Jocelyn
AU  - Crescimbeni, Lorenzo
AU  - Schwickert, Marcus
AU  - Schmelz, Matthias
AU  - Stapelfeld, Max
AU  - Stolz, Ronny
AU  - Stoehlker, Thomas
AU  - Tympel, Volker
AU  - Zakosarenko, Vyacheslav
A3  - Pilat, Fulvia
A3  - Fischer, Wolfram
A3  - Saethre, Robert
A3  - Anisimov, Petr
A3  - Andrian, Ivan
TI  - Final design of the Cryogenic Current Comparator for FAIR
PB  - JACoW Publishing
M1  - GSI-2025-00405
SP  - 2311-2314 p.
PY  - 2024
N1  - Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license
AB  - Cryogenic Current Comparators (CCC) are ultrasensitive DC-Beam Transformers based on superconducting SQUID technology. With the aim to provide a robust and high resolution intensity measurement for application at FAIR and CERN machines, numerous steps of optimization were carried out over the last years by a collaboration of institutes specialized on the various subtopics. Different types of CCCs with respect to pickup, magnetic shielding, SQUID types and SQUID coupling have been developed and were tested in the laboratory as well as under beamline conditions. In parallel, the cryogenic system has steadily been optimized, to fulfill the requirement of a standalone liquid helium cryostat, which is nonmagnetic, fit for UHV application, vibration damped, compact and accessible for maintenance and repair. We will present the particular development steps and describe the final version of the CCC for FAIR as their outcome. The latest beamtime results are shown as well as recent tests with the cryogenic system. The CCC for FAIR will be a so called Dual-Core CCC (DCCC), which runs two pickups in parallel with independent electronics for better noise reduction and redundancy. The magnetic shielding will have an axial meander geometry, which provides superior attenuation of external magnetic noise.
T2  - 15th International Particle Accelerator Conference
CY  - 19 May 2024 - 24 May 2024, Nashville (USA)
Y2  - 19 May 2024 - 24 May 2024
M2  - Nashville, USA
KW  - Accelerator Physics (Other)
KW  - mc6-beam-instrumentation-controls-feedback-and-operational-aspects - MC6: Beam Instrumentation, Controls, Feedback, and Operational Aspects (Other)
KW  - MC6.T03 - MC6.T03 Beam Diagnostics and Instrumentation (Other)
LB  - PUB:(DE-HGF)8
DO  - DOI:10.18429/JACOW-IPAC2024-WEPG42
UR  - https://repository.gsi.de/record/357448
ER  -