磁共振成像低温超导磁体冷却系统设计及数值分析
祁云(),孙大明*(),苏峙岳,乔鑫
Design and numerical analysis of a cooling system for low temperature superconducting magnet of magnetic resonance imaging
Yun QI(),Da-ming SUN*(),Shi-yue SU,Xin QIAO

图 9. 冷却过程中制冷机冷端对流传热系数变化

Fig.9. Variation of convective heat transfer coefficient of cold end of cryocooler during cooling process