Measured Strain of Nb3Sn Coils During Excitation and Quench

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The strain in a high field Nb{sub 3}Sn coil was measured during magnet assembly, cool-down, excitation and spot heater quenches. Strain was measured with a full bridge strain gauge mounted directly over the turns and impregnated with the coil. Two such coils were placed in a ''common coil'' fashion capable of reaching 11T at 4.2K. The measured steady state strain in the coil is compared with results obtained using the FEM code ANSYS. During quenches, the transient strain (due to temperature rise) was also measured and compared with the calculated mechanical time response to a quench.

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Caspi, S.; Bartlett, S.E.; Dietderich, D.R.; Ferracin, P.; Gourlay, S.A.; Hannaford, C.R. et al. April 16, 2005.

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The strain in a high field Nb{sub 3}Sn coil was measured during magnet assembly, cool-down, excitation and spot heater quenches. Strain was measured with a full bridge strain gauge mounted directly over the turns and impregnated with the coil. Two such coils were placed in a ''common coil'' fashion capable of reaching 11T at 4.2K. The measured steady state strain in the coil is compared with results obtained using the FEM code ANSYS. During quenches, the transient strain (due to temperature rise) was also measured and compared with the calculated mechanical time response to a quench.

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  • Applied Superconductivity Conference,Jacksonville, FL, Oct 3-8, 2004

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  • Report No.: LBNL--54885
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 882074
  • Archival Resource Key: ark:/67531/metadc891774

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  • April 16, 2005

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  • Sept. 23, 2016, 2:42 p.m.

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  • Sept. 21, 2017, 7:11 p.m.

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Caspi, S.; Bartlett, S.E.; Dietderich, D.R.; Ferracin, P.; Gourlay, S.A.; Hannaford, C.R. et al. Measured Strain of Nb3Sn Coils During Excitation and Quench, article, April 16, 2005; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc891774/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.