Study on resistance characteristics and operating conditions of YBCO thin-film wire for current limitation considering insulation layer

Du, Ho-Ik; Kim, M.-J.; Kim, Y.-J.; Lee, D.-H.; Han, Byoung-Sung; Song, Seunghyun

doi:10.1016/j.physc.2010.05.184

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“…The resistance per unit length 13is always known: it is one of the design parameters of the magnet wire that is always carefully characterized. Typically, η ≈0.15 Ohm/m [1][2][3][4]. With this, the quench time transforms to .…”

Section: Solution For the Currentmentioning

confidence: 99%

Analytical formulas for current dynamics and peak temperature during quench in MRI

Protopopov¹

2014

Med Instrum

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Quench of a superconducting magnet in MRI scanners may cause damage to the coil, but is unavoidable in some situations. Knowledge of the temporal evolution of current and the maximum temperature developed in the coil make it possible to determine the state the coil after the quench. Commonly, these parameters are computed using three-dimensional simulation programs. However, numerical models do not provide physical links between basic parameters of the magnet and quench dynamics. This paper presents analytical formulas that may serve as reasonable estimates, showing relationship between quench dynamics and parameters of a superconducting magnet.

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Section: Solution For the Currentmentioning

confidence: 99%