You are here

Construction and Test Results of Coil 2 of a Three-Coil 800-MHz REBCO Insert for the 1.3-GHz High-Resolution NMR Magnet.

Title: Construction and Test Results of Coil 2 of a Three-Coil 800-MHz REBCO Insert for the 1.3-GHz High-Resolution NMR Magnet.
10 views
10 downloads
Name(s): Bascuñán, Juan, author
Michael, Philip, author
Hahn, Seungyong, author
Lecrevisse, Thibault, author
Iwasa, Yukikazu, author
Type of Resource: text
Genre: Journal Article
Text
Date Issued: 2017-06-01
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: This paper focuses on the construction and test results of Coil 2 that is part of a trio of nested coils composing the REBCO 800 MHz insert. Upon its completion, the REBCO 800 MHz insert will be placed in the bore of a 500 MHz low temperature superconducting (LTS) NMR magnet (L500) to form the MIT 1.3 GHz high-resolution NMR magnet. Coil 2 is a stack of 32 double pancake (DP) coils wound with 6-mm wide REBCO tape using the no-insulation (NI) technique. Each pancake is wound on a stainless steel inner supporting ring to prevent the collapsing of its crossover due to the external pressure exerted by the winding pack. Coil 2 will be constructed in the following sequence: 1) after winding each DP will be individually tested in a bath of liquid nitrogen at atmospheric pressure to determine its current carrying capabilities; 2) DPs will be then assembled as a stack with interconnecting joints, and 3) as in Coil 1, each pancake will be overbanded with a stainless steel tape, this time to a thickness of 5 mm, thickness determined by a stress analysis previously performed. Finally the fully assembled Coil 2 will be tested in liquid nitrogen at 77 K and then in liquid helium at 4.2 K. We present here details of the stress analysis leading to the sizing of the DP inner supporting stainless steel ring and of the overbanding thickness required. Test results include coil index, critical current, charging time constant.
Identifier: FSU_pmch_28919700 (IID), 10.1109/TASC.2016.2641341 (DOI), PMC5596903 (PMCID), 28919700 (RID), 28919700 (EID)
Keywords: Double Pancake coils, NMR, REBCO, Superconducting magnet
Grant Number: R01 EB017097, R01 GM114834
Publication Note: This NIH-funded author manuscript originally appeared in PubMed Central at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5596903.
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_pmch_28919700
Host Institution: FSU
Is Part Of: IEEE transactions on applied superconductivity : a publication of the IEEE Superconductivity Committee.
1051-8223
Issue: iss. 4, vol. 27

Choose the citation style.
Bascuñán, J., Michael, P., Hahn, S., Lecrevisse, T., & Iwasa, Y. (2017). Construction and Test Results of Coil 2 of a Three-Coil 800-MHz REBCO Insert for the 1.3-GHz High-Resolution NMR Magnet. Ieee Transactions On Applied Superconductivity : A Publication Of The Ieee Superconductivity Committee. Retrieved from http://purl.flvc.org/fsu/fd/FSU_pmch_28919700