Experimental investigation to overcome the ramp-rate limitation of CICC superconducting magnets

Sangkwon Jeong, Seokho Kim, Tae Kuk Ko

Research output: Contribution to journalConference article

2 Citations (Scopus)


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 languageEnglish
Pages (from-to)1689-1692
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number1 II
Publication statusPublished - 2001 Mar 1
Event2000 Applied Superconductivity Conference - Virginia Beach, VA, United States
Duration: 2000 Sep 172000 Sep 22

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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