Quench detection and protection system design and analysis of the 7 T superconducting magnet

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LONG Feng, SHI Yi, LIU Fang and NI Zhi-Peng. Quench detection and protection system design and analysis of the 7 T superconducting magnet[J]. Chinese Physics C, 2010, 34(4): 492-495. doi: 10.1088/1674-1137/34/4/014
LONG Feng, SHI Yi, LIU Fang and NI Zhi-Peng. Quench detection and protection system design and analysis of the 7 T superconducting magnet[J]. Chinese Physics C, 2010, 34(4): 492-495.  doi: 10.1088/1674-1137/34/4/014 shu
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Received: 2009-04-30
Revised: 2009-10-29
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Quench detection and protection system design and analysis of the 7 T superconducting magnet

    Corresponding author: LONG Feng,

Abstract: 

A NbTi 7 T superconducting magnet with a 338 mm bore system was rebuilt and the first experiment was carried out in Jan. 2009. The balancing-bridge method used for the quench detection system is analyzed and an improvement of the principle of balancing-bridge conformation is given. The inductances of the coils are calculated to estimate the proportion of the bridge arms. The appropriate parameters are selected for the balancing-bridge.

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