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RIS citation export for WEPTEV003: A Superconducting Magnetic Shield for SRF Modules with Strong Magnetic Field Sources

AU  - Völker, J.
AU  - Frahm, A.
AU  - Keckert, S.
AU  - Knobloch, J.
AU  - Matveenko, A.N.
AU  - Neumann, A.
AU  - Plötz, H.
AU  - Tamashevich, Y.
ED  - Saito, Kenji
ED  - Xu, Ting
ED  - Sakamoto, Naruhiko
ED  - Lesage, Ana
ED  - Schaa, Volker R.W.
TI  - A Superconducting Magnetic Shield for SRF Modules with Strong Magnetic Field Sources
J2  - Proc. of SRF2021, East Lansing, MI, USA, 28 June-02 July 2021
CY  - East Lansing, MI, USA
T2  - International Conference on RF Superconductivity
T3  - 20
LA  - english
AB  - Frequently SRF modules require strong focusing magnets close to SRF cavities. The shielding of those magnetic fields to avoid flux trapping, for example during a quench, is a challenge. At HZB, the bERLinPro photo-injector module includes a 1.4 cell SRF cavity placed in close proximity to a superconducting (SC) focusing solenoid. At full solenoid operation, parts of the double mu-metal shield are expected to saturate. To prevent saturation, we developed a new superconducting Meissner-Shield. Several tests of different designs were performed both in the injector module and in the HoBiCaT test facility. The measured results of the final design show a significant shielding that are in good agreement with calculations. Based on these results, a reduction of the magnetic flux density in the mu-metal shields of almost one order of magnitude is expected The design has now been incorporated in the injector module. In this paper we will present the design, the setup and results of the final testing of the superconducting shield.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 637
EP  - 641
KW  - solenoid
KW  - gun
KW  - niobium
KW  - shielding
DA  - 2022/10
PY  - 2022
SN  - 2673-5504
SN  - 978-3-95450-233-2
DO  - doi:10.18429/JACoW-SRF2021-WEPTEV003
UR  - https://jacow.org/srf2021/papers/weptev003.pdf
ER  -