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[Magnet Quench Factors in Ramping-up Procedure]
Hongjie Wang1, Jinjiang Jin1, Lijian Wang1
1The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, 310009.
Abstract:
Ramping-up is the magnet current injection procedure which is under the control of resistance, voltage, current lead temperature, magnet pressure, temperature and so on. In this procedure, the factors related to the stability of the magnet such as, magnet temperature, pressure and currents are constantly changing. This procedure is the main step which the magnet-quench occurs in. This study uses the data collected during 7 years and SIMENS MRI ramping-up theory, in order to help engineers understand the key factors to reduce the magnet quench during the ramping up procedure.
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