München 2019 – scientific programme
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 13: Hadron Accelerators and Colliders
AKBP 13.4: Talk
Thursday, March 21, 2019, 14:45–15:00, HS 8
Beam Impact Experiment of 440GeV/p Protons on Superconducting Wires and Tapes in a Cryogenic Environment — •Andreas Will1,2, Axel Bernhard1, Marco Bonura3, Matthias Mentink2, Anke-Susanne Mueller1, Andreas Oslandsbotn2, Carmine Senatore3, and Daniel Wollmann2 — 1KIT, Karlsruhe, Germany — 2CERN, Geneva, Switzerland — 3University de Geneve, Geneva, Switzerland
The superconducting magnets used in high energy particle accelerators such as CERN's LHC can be impacted by the circulating beam in case of specific failure cases. This leads to interaction of the beam particles with the magnet components, like the superconducting coils, directly or via secondary particle showers. The interaction leads to energy deposition in the timescale of microseconds and induces large thermal gradients within the superconductors in the order of 100 K/mm. To investigate the effect on the superconductors, an experiment at CERN's HiRadMat facility was designed and executed, exposing short samples of Nb-Ti and Nb3Sn strands as well as YBCO tape in a cryogenic environment to microsecond 440 GeV/p proton beams. The irradiated samples were extracted and analyzed for their superconducting properties, such as the critical transport current. This paper describes the experimental setup as well as the results of the analysis.