Low- Tc direct current superconducting quantum interference device magnetometer-based 36-channel magnetocardiography system in a magnetically shielded room
Qiu Yanga),b),c), Li Huaa),b),c), Zhang Shu-Lina),b), Wang Yong-Lianga),b), Kong Xiang-Yan†a),b), Zhang Chao-Xianga),b), Zhang Yong-Shenga),b), Xu Xiao-Fenga),b), Yang Kanga),b),c), Xie Xiao-Minga),b)
       
Layout of the SQUID chip with a size of 10×10 mm2.