Abstract
RRL (Ramp-rate limitation) is a phenomenon in which a magnet quenches before it reaches its apparent critical current. This paper is an experimental investigation not about the detailed influence of various parameters on the ramp-rate limitation, but about the general methodology to overcome it. A CICC (Cable-In-Conduit Conductor) superconducting magnet has been made of three-strand NbTi triplet. The magnet produced a maximum 3.6 T/s ramp-rate at the inner most region. The temperature of the supercritical helium coolant was deliberately raised to investigate RRL-related quench. The main purpose of the experiment was to study RRL phenomena at the first and consecutive ramp-ups. If quench is avoided during the first ramp-up, the consecutive ramp-ups of the magnet have much higher resistance against the RRL. This paper describes several experimental observations of several an interesting hysteretic characteristics of RRL.
| Original language | English |
|---|---|
| Pages (from-to) | 1689-1692 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 11 |
| Issue number | 1 II |
| DOIs | |
| Publication status | Published - 2001 Mar |
| Event | 2000 Applied Superconductivity Conference - Virginia Beach, VA, United States Duration: 2000 Sept 17 → 2000 Sept 22 |
Bibliographical note
Funding Information:Manuscript received Septembcr 18, 2000. This work was supported by the KSTAR project under the auspiccs of Ministry of Science and Technology and also partially supported by the Brain Korea 21 project in Korea Sangkwon Jeong and Seokho Kim are with Korea Advanced Institute of Science and Technology, 373-1 Kusong-dong, Yusong-gu, Taejon 305-701, Korea (cmail: skjeongOiiiail.kaist.ac.kr, extter@kaist.ac.kr) ‘l’ae Kuk KO is with Yonsei University, Shinchon-dong 134, Seodaemun-gu. Seoul 120-749, Korea
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering