3He极化系统中FID NMR线圈的优化分析及实验验证

罗庆金, 吴良勇, 王雨婷, 闫海洋, 向一峰, 陈思宇

Optimization Analysis and Experimental Verification of FID NMR Coil in Polarized 3He Systems

LUO Qingjin, WU Liangyong, WANG Yuting, YAN Haiyang, XIANG Yifeng, CHEN Siyu

表2 FID线圈的测量误差

Table 2 Measurement errors of FID coils

编号 Vsig /V 误差 VN /V 误差 SNR 误差 1 0.04312 0.00018 0.01378 0.00069 3.130 0.16 2 0.22592 0.00079 0.02121 0.00106 10.65 0.53 3 0.52553 0.00156 0.03209 0.00160 16.37 0.82 4 1.14638 0.00411 0.05779 0.00289 19.84 0.99 5 1.61729 0.00520 0.07510 0.00375 21.54 1.08 6 2.21850 0.00630 0.12594 0.00630 17.62 0.88 7 4.26661 0.00905 0.29199 0.01460 14.61 0.73 8 4.62707 0.02263 0.42443 0.02122 10.90 0.54