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

Abstract

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.

Authors:
; ; ; ; ; ; ;  [1]
  1. Texas A and M University 3380 University Drive East College Station, Texas, 77843 (United States)
Publication Date:
OSTI Identifier:
22262741
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1573; Journal 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); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; CROSS SECTIONS; DIPOLES; FILAMENTS; GLASS; HEAT TREATMENTS; IMPREGNATION; RODS; SAFETY; STRESSES

Citation Formats

Holik, E. F., Garrison, R., Diaczenko, N., Elliott, T., Jaisle, A., McInturff, A. D., McIntyre, P., and Sattarov, A. Construction challenges and solutions in TAMU3, a 14 T stress-managed Nb{sub 3}Sn dipole. United States: N. p., 2014. Web. doi:10.1063/1.4860889.
Holik, E. F., Garrison, R., Diaczenko, N., Elliott, T., Jaisle, A., McInturff, A. D., McIntyre, P., & Sattarov, A. Construction challenges and solutions in TAMU3, a 14 T stress-managed Nb{sub 3}Sn dipole. United States. https://doi.org/10.1063/1.4860889
Holik, E. F., Garrison, R., Diaczenko, N., Elliott, T., Jaisle, A., McInturff, A. D., McIntyre, P., and Sattarov, A. 2014. "Construction challenges and solutions in TAMU3, a 14 T stress-managed Nb{sub 3}Sn dipole". United States. https://doi.org/10.1063/1.4860889.
@article{osti_22262741,
title = {Construction challenges and solutions in TAMU3, a 14 T stress-managed Nb{sub 3}Sn dipole},
author = {Holik, E. F. and Garrison, R. and Diaczenko, N. and Elliott, T. and Jaisle, A. and McInturff, A. D. and McIntyre, P. and Sattarov, A.},
abstractNote = {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.},
doi = {10.1063/1.4860889},
url = {https://www.osti.gov/biblio/22262741}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1573,
place = {United States},
year = {Wed Jan 29 00:00:00 EST 2014},
month = {Wed Jan 29 00:00:00 EST 2014}
}