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1 不同直径的FID线圈的测量参数

Table 1 Parameters of FID coils with different diameters

内直径/mm 电阻R/Ω 电感L/mH 调谐后线圈的谐振频率/kHz 品质因数Q 1 5 15.2 0.79 34.60 10.97 2 10 24.8 2.14 34.93 15.63 3 15 36.3 3.82 34.71 20.69 4 20 43.3 5.60 34.78 25.78 5 25 54.9 6.88 34.73 27.91 6 30 65 9.72 34.90 29.75 7 49 97.9 17.27 34.82 35.21 8 59 114.6 21.36 34.90 36.02