The effect of interturn heat flow on the recovery currents of a superconducting magnet: A comparison of calculated and measured values

✍ Scribed by C.N. Carter; K.G. Lewis; B.J. Maddock

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 696 KB
• Volume: 13
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(73)90058-1

✦ Synopsis

Cryostatic stabilization is appropriate for superconducting magnets producing steady fields over large volumes The measured recovery currents for a 10 cm bore 6.4 T experimental solenoid are compared with values derived from a stability analysis which includes heat flow from the resistive region to adjacent conductors as well as to the helium cool-ant_ Agreement is excellent despite some uncertainty in the helium heat transfer characteristic and in the thermal conductivity of the interturn insulation. Given good data for these it should be possible, using the method presented, to design cryostatically stabilized windings with precision just from basic data for the conductor and its intended environment. Details of the behaviour of large and small resistive regions in this solenoid are given. The critical currents are also accurately predicted from the performance of short samples of the conductor after taking account of anisotropy with respect to the direction of the ambient magnetic field.