PROBLEM TO BE SOLVED: To measure weak magnetism generated at a neck region or a lumbar region without bending the neck or the lower back of a subject.SOLUTION: A biomagnetism measuring apparatus is equipped with a dewar (1), a first sensor cylinder (2a) through a fourth sensor cylinder (2d) which protrude from the dewar (1) and have an upper surface being a bending part, and a plurality of superconducting magnetic sensors (11) provided on the inner surface of each bending part of the first sensor cylinder (2a) through the fourth sensor cylinder (2d). The bending parts of the first through fourth sensor cylinders (2a)-(2d) are bent smoothly in a manner that central parts respectively protrude 0.5 cm, 1 cm, 2.5 cm, and 4 cm from both ends. Since the bending part is brought into close contact with the neck region or the lumbar region of the subject (H) without forcing to bend the neck or the back of the subject forward if the sensor cylinder having the bending part conforming to the subject (H), the weak magnetism generated at a spinal cord is appropriately measured.COPYRIGHT: (C)2008,JPO&INPIT【課題】被検体の首や腰を前に曲げなくても、頚部や腰部で発生する微弱な磁気を測定可能とする。【解決手段】デュア(1)と、デュア(1)から突出し上面が湾曲部になっている第1センサ筒(2a)~第4センサ筒(2d)と、第1センサ筒(2a)~第4センサ筒(2d)の各湾曲部の内面に設置してなる複数の超伝導磁気センサ(11)とを具備する。第1センサ筒(2a)~第4センサ筒(2d)の湾曲部は、それぞれ中央が両端より0.5cm、1cm、2.5cm、4cm飛び出すように滑らかに湾曲している。【効果】被検体(H)に適合する湾曲部を持つセンサ筒を選べば、被検体の首や背を無理に前に曲げなくても、湾曲部を被検体(H)の頚部や腰部に密着させることが出来るので、脊髄で発生する微弱な磁気を好適に測定することが出来る。【選択図】図2