Construction and operation of the 12-T superconducting coils for the Mirror Fusion Test Facility
We have successfully constructed and tested a pair of high-field coils that is part of the magnet set of the Mirror Fusion Test Facility (MFTF-B) at the Lawrence Livermore National Laboratory. Each coil consists of a multifilamentary Nb/sub 3/Sn magnet nested inside a multifilamentary NbTi magnet. During our test, these coils produced a central field of 12 T, with a peak conductor field of 12.5 T. The dimensions of the Nb/sub 3/Sn insert coil are: 1.34-m bore, 2.57-m outer diameter, and 1.14-m overall length. These coils were designed to be fully cryogenically stabilized and cooled by pool-boiling liquid helium. The operating current density of the Nb/sub 3/Sn coils is 2000 A/cm/sup 2/ and 2400 A/cm/sup 2/ for the NbTi magnet. In this paper, we present design considerations and details, construction techniques, and operational results of these coils.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6986234
- Report Number(s):
- UCRL-94217; CONF-860914-20; ON: DE87003394
- Resource Relation:
- Conference: Applied superconductivity conference (ASC '86), Baltimore, MD, USA, 28 Sep 1986; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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