Construction challenges and solutions in TAMU3, a 14 T stress-managed Nb{sub 3}Sn dipole

Journal Article · Wed Jan 29 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4860889· OSTI ID:22262741

Holik, E. F.; Garrison, R.; Diaczenko, N.; Elliott, T.; Jaisle, A.; McInturff, A. D.; McIntyre, P.; Sattarov, A. ^[1]

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1. Texas A and M University 3380 University Drive East College Station, Texas, 77843 (United States)

The Accelerator Research Laboratory at Texas A and M University is nearing completion of a Nb{sub 3}Sn dipole that incorporates stress management directly in its windings. The windings utilize graded-cross-section cable made from 54/61 (54 out of a 61 subelement hexagonal pattern) Restacked Rod Processed® Nb{sub 3}Sn/Cu conductor and fine-filament S-2 glass fabric insulation. Coil heat treatment and associated differential expansions have brought about some tin leakage, highresistance electrical shorts, and coil gaps. TAMU3b impregnation successfully increased the coil-to-ground resistance. Quench protection in TAMU3 was simulated using QUENCH. The tests of TAMU3 should provide the first examination of stress management at field intensities greater than 12 T.

• OSTI ID: 22262741
• Journal Information: AIP Conference Proceedings, Vol. 1573, Issue 1; Conference: Cryogenic engineering conference, Anchorage, AK (United States), 17-21 Jun 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
CROSS SECTIONS
DIPOLES
FILAMENTS
GLASS
HEAT TREATMENTS
IMPREGNATION
RODS
SAFETY
STRESSES