Pre-Manufacturing Design of the Superconducting Dipole Magnet for the CBM Detector | Sciact - CRIS-system of Boreskov Institute of Catalysis

Pre-Manufacturing Design of the Superconducting Dipole Magnet for the CBM Detector Full article

Journal

IEEE Transactions on Applied Superconductivity
ISSN: 1051-8223

Output data

Year: 2024, Volume: 34, Number: 5, Article number : 4500604, Pages count : 4 DOI: 10.1109/tasc.2024.3353715

Tags

Superconducting magnets, Coils, Windings, Helium, Iron, Cooling, Magnetomechanical effects, Design of the superconducting magnet, indirectly cooled magnet, superconducting dipole magnet for detector, thermosiphon cooling

Authors

Bragin A.V. ¹ , Erokhin A.I. ¹ , Kholopov M.A. ¹ , Kremnev A.A. ¹ , Khrushchev S.V. ¹ , Mezentsev N.A. ¹ , Shkaruba V.A. ¹ , Syrovatin V.M. ¹ , Tsukanov V.M. ¹

Affiliations

1	Budker Institute of Nuclear Physics, Novosibirsk, Russia

The CBM detector will research compressed baryon matter on the FAIR facility, GSI, Darmstadt. The superconducting dipole magnet of this detector provides vertical magnetic field with field integral ∼ 1 T*m along a beam length of 1 m. The warm bore distance between the dipole coils is 1.44 m. Maximal magnetic field on the superconducting winding is 3.6 T. The stored energy of the magnet is ∼ 5 MJ. The superconducting coils having 1.34 m of inner diameter will be made of NbTi wire having Cu/SC ratio of 7/1. The SC wire cross-section bare size is 2.02 mm × 3.25 mm. This wire of 30 km of total length in 6 pieces was manufactured by extrusion monolith technique. The iron yoke having 139 t weight is a part of the CBM magnet. It was manufactured and assembled. The SC coils were designed according the indirect cooling principle. The superconducting winding is embedded in copper case and will be cooled by 4.5 K helium going through the copper tube attached to the copper case. Two dummy coils were manufactured and tested to choose the epoxy impregnation procedure. The cooling helium will circulate between the cryostat containing 150 l of LHe and two coils in thermosyphone regime in single loop. The vapor quality at the outlet of the thermosyphone loop is ∼ 10%. The each coil is affected by 3 MN axial force towards the nearest iron yoke. The single cylinder GFRP support strut was designed to withstand this force to have the safety factor > 4 with respect to the ultimate strength and buckling. The GFRP material was chosen and tested.

Bragin A.V. , Erokhin A.I. , Kholopov M.A. , Kremnev A.A. , Khrushchev S.V. , Mezentsev N.A. , Shkaruba V.A. , Syrovatin V.M. , Tsukanov V.M.
Pre-Manufacturing Design of the Superconducting Dipole Magnet for the CBM Detector
IEEE Transactions on Applied Superconductivity. 2024. V.34. N5. 4500604 :1-4. DOI: 10.1109/tasc.2024.3353715 WOS Scopus OpenAlex

Published online:	Jan 15, 2024
Published print:	Aug 1, 2024

Web of science:	WOS:001167549100006
Scopus:	2-s2.0-85182925002
OpenAlex:	W4390871570

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