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Measurements of Dynamic Effects in FNAL 11 T Nb3Sn Dipole Models

Journal Article · · IEEE Transactions on Applied Superconductivity
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  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
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Fermilab, in collaboration with CERN, has developed a twin-aperture 11 T Nb3Sn dipole suitable for the high-luminosity LHC upgrade. During 2012-2014, a 2-m long single-aperture dipole demonstrator and three 1-m long single-aperture dipole models were fabricated by FNAL and tested at its Vertical Magnet Test Facility. Collared coils from two of the 1-m long models were then used to assemble the first twin-aperture dipole demonstrator. This magnet had extensive testing in 2015-2016, including quench performance, quench protection, and field quality studies. Here, this paper reports the results of measurements of persistent current effects in the single-aperture and twin-aperture 11 T Nb3Sn dipoles and compares them with similar measurements in previous NbTi magnets
Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1408208
Report Number(s):
FERMILAB-CONF--17-341-TD; 1635146
Journal Information:
IEEE Transactions on Applied Superconductivity, Journal Name: IEEE Transactions on Applied Superconductivity Journal Issue: 99 Vol. PP; ISSN 1051-8223
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)Copyright Statement
Country of Publication:
United States
Language:
English

Cited By (1)

Dipole Magnets Above 20 Tesla: Research Needs for a Path via High-Temperature Superconducting REBCO Conductors journal November 2019

Figures / Tables (9)

Table I(p. 1)table Table I
Fig. 1.(p. 2)figure Fig. 1.
Fig. 2(p. 2)figure Fig. 2
Fig. 3(p. 2)figure Fig. 3
Fig.(p. 3)figure Fig.
Fig. 4(p. 3)figure Fig. 4
Fig. 5(p. 3)figure Fig. 5
Table II(p. 3)table Table II
Fig. 7(p. 4)figure Fig. 7

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Related Subjects

43 PARTICLE ACCELERATORS
Accelerator Magnets
Decay and Snap-back
Persistent Currents
Superconducting Magnets