Fig. 5
From: An ultra-low magnetic field thermal demagnetizer for high-precision paleomagnetism
Contour map of magnetic field distribution if the solenoids are wired such that the current flow is parallel. a–c The field distribution composed of 12 conventional solenoids, and d, e the field distribution with new heating elements. f The position of the solenoids and the corresponding current direction in adjacent. Letter X, Y, Z in the middle of the graph represents the direction of the magnetic field