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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Seungyong Hahn Dong Keun Park Kwangmin Kim Bascunan, J. Iwasa, Y. |
| Copyright Year | 2002 |
| Abstract | This paper describes and discusses a No-Insulation (NI) winding technique that, based on experiment results of two test NbTi coils, promises to significantly improve stability and ease protection of high performance magnets; if applied to those used in marketplace MRI magnets, it may eradicate premature quenches that still afflict these magnets, though much less frequently than in the past. The key idea is that a single turn in an NI winding can, upon a quench, share the copper stabilizers of neighboring turns through turn-to-turn contacts. To demonstrate the main features of the NI technique, two test coils (Φ30 mm) were wound with insulated (INS) and no-insulation (NI) NbTi wires, respectively. The results presented in this paper include: 1) charge-discharge test results and field analyses showing that the NI field performance is essentially identical to that of the INS coil except a charging delay; and 2) charging test results where coil voltages were measured during critical current tests to imply that the NI coil is charged more stably than its INS counterpart. |
| Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
| Starting Page | 4501004 |
| Ending Page | 4501004 |
| Page Count | 1 |
| File Size | 768205 |
| File Format | |
| ISSN | 10518223 |
| Volume Number | 22 |
| Issue Number | 3 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-06-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Coils Nickel Magnetic resonance imaging Superconducting magnets Windings Stability analysis Voltage measurement stability MRI NbTi no-insulation premature quench quench-free |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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