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Evaluation of persistent-mode operation in a superconducting MgB2 coil in solid nitrogen

Journal Article


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Abstract


  • We report the fabrication of a magnesium diboride (MgB2) coil and evaluate its persistent-mode

    operation in a system cooled by a cryocooler with solid nitrogen (SN2) as a cooling medium. The

    main purpose of SN2 was to increase enthalpy of the cold mass. For this work, an in situ

    processed carbon-doped MgB2 wire was used. The coil was wound on a stainless steel former in

    a single layer (22 turns), with an inner diameter of 109 mm and height of 20 mm without any

    insulation. The two ends of the coil were then joined to make a persistent-current switch to

    obtain the persistent-current mode. After a heat treatment, the whole coil was installed in the SN2

    chamber. During operation, the resultant total circuit resistance was estimated to be

    <7.4×10−14 Ω at 19.5 K±1.5 K, which meets the technical requirement for magnetic

    resonance imaging application.

Authors


  •   Patel, Dipakkumar (external author)
  •   Hossain, Md Shahriar
  •   See, Khay W.
  •   Qiu, Wenbin (external author)
  •   Kobayashi, Hiroki (external author)
  •   Ma, Zongqing (external author)
  •   Kim, Seong Jun (external author)
  •   Hong, Jonggi (external author)
  •   Park, Jin Yong (external author)
  •   Choi, Seyong (external author)
  •   Maeda, Minoru (external author)
  •   Shahabuddin, Mohammed (external author)
  •   Rindfleisch, Matthew A. (external author)
  •   Tomsic, Michael (external author)
  •   Dou, Shi Xue
  •   Kim, Jung Ho

Publication Date


  • 2016

Citation


  • Patel, D., Hossain, M. Al., See, K., Qiu, W., Kobayashi, H., Ma, Z., Kim, S., Hong, J., Park, J., Choi, S., Maeda, M., Shahabuddin, M., Rindfleisch, M., Tomsic, M., Dou, S. Xue. & Kim, J. (2016). Evaluation of persistent-mode operation in a superconducting MgB2 coil in solid nitrogen. Superconductor Science and Technology, 29 1-6.

Scopus Eid


  • 2-s2.0-84961696226

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2752&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1750

Number Of Pages


  • 5

Start Page


  • 1

End Page


  • 6

Volume


  • 29

Abstract


  • We report the fabrication of a magnesium diboride (MgB2) coil and evaluate its persistent-mode

    operation in a system cooled by a cryocooler with solid nitrogen (SN2) as a cooling medium. The

    main purpose of SN2 was to increase enthalpy of the cold mass. For this work, an in situ

    processed carbon-doped MgB2 wire was used. The coil was wound on a stainless steel former in

    a single layer (22 turns), with an inner diameter of 109 mm and height of 20 mm without any

    insulation. The two ends of the coil were then joined to make a persistent-current switch to

    obtain the persistent-current mode. After a heat treatment, the whole coil was installed in the SN2

    chamber. During operation, the resultant total circuit resistance was estimated to be

    <7.4×10−14 Ω at 19.5 K±1.5 K, which meets the technical requirement for magnetic

    resonance imaging application.

Authors


  •   Patel, Dipakkumar (external author)
  •   Hossain, Md Shahriar
  •   See, Khay W.
  •   Qiu, Wenbin (external author)
  •   Kobayashi, Hiroki (external author)
  •   Ma, Zongqing (external author)
  •   Kim, Seong Jun (external author)
  •   Hong, Jonggi (external author)
  •   Park, Jin Yong (external author)
  •   Choi, Seyong (external author)
  •   Maeda, Minoru (external author)
  •   Shahabuddin, Mohammed (external author)
  •   Rindfleisch, Matthew A. (external author)
  •   Tomsic, Michael (external author)
  •   Dou, Shi Xue
  •   Kim, Jung Ho

Publication Date


  • 2016

Citation


  • Patel, D., Hossain, M. Al., See, K., Qiu, W., Kobayashi, H., Ma, Z., Kim, S., Hong, J., Park, J., Choi, S., Maeda, M., Shahabuddin, M., Rindfleisch, M., Tomsic, M., Dou, S. Xue. & Kim, J. (2016). Evaluation of persistent-mode operation in a superconducting MgB2 coil in solid nitrogen. Superconductor Science and Technology, 29 1-6.

Scopus Eid


  • 2-s2.0-84961696226

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2752&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1750

Number Of Pages


  • 5

Start Page


  • 1

End Page


  • 6

Volume


  • 29