Criterion for burn-up conditions in gas-cooled cryogenic current leads

Superconducting magnets are energized through helium vapour-cooled cryogenic current leads operating at high ratios of current to mass flow. The high current operation where lead temperature, runaway, and eventual burn-up are likely to occur is investigated. A simple criterion for estimating the burn-up operation conditions (current, mass flow) for a given lead geometry (cross-sectional area, length, heat exchanger area) is presented. This article stresses the role played by the available heat exchanger area in avoiding burnup at high ratios of current to mass flow. © 1976.

Duke Authors

Cited Authors

  • Bejan, A; Jr, EMC

Published Date

  • 1976

Published In

Volume / Issue

  • 16 / 9

Start / End Page

  • 515 - 518

International Standard Serial Number (ISSN)

  • 0011-2275

Citation Source

  • SciVal