EXCITATION OF A SUPERCONDUCTING LARGE THIN SOLENOID MAGNET.

M. Wake, M. Sakuda, T. Matsui, N. Ishihara, K. Maehata, Y. Doi, K. Ishibashi, T. Satow, H. Hirabayashi

Research output: Contribution to journalArticlepeer-review

Abstract

A superconducting large thin solenoid magnet was constructed for the VENUS detector in the TRISTAN 30-GeV e** plus e**- collider. The magnet has a 3. 4-m warm-bore diameter and a 5. 24-m usable length with a material thickness of 0. 52 radiation length. The first excitation was successfully performed up to 4000 A with no quench. Several forced quenches using a heater mounted on the coil were made to check the safety of operation. The quench propagation velocity was measured in these quenches. The quench back phenomenon was observed about one second after the shutoff of the power supply. The field quality of the magnet was found to be uniform within an accuracy of 0. 3%. The success of the first excitation was immediately followed by the assembly of the detector. VENUS was rolled into the TRISTAN collider storage ring and is now prepared for the first collision of e** plus and e**-.

Original languageEnglish
JournalIEEE Transactions on Magnetics
VolumeMAG-23
Issue number2
Publication statusPublished - Mar 1986

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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