Performance study of aluminum shielded room for ultra-low-field magnetic resonance imaging based on SQUID: Simulations and experiments

Li Bo^{1, 2, 3}, Dong Hui^{2, 3}, Huang Xiao-Lei^{2, 3, 4}, Qiu Yang^{1, 2, 3}, Tao Quan^{2, 3}, Zhu Jian-Ming^{1, †}

NMR signals at 5.9 kHz (a) in the free space, and (b) in the 6-mm-thick shielded room.