Fig. 1.

The distribution of the electromagnetic field along the main axis of the coil within the area of the animal chamber and the location of the exposure chamber within the coil and coordinate system used for the plot. $\overrightarrow{\mathrm{B}}$ is the magnetic flux density vector and B/B₀ is the normalized magnetic flux density relative to the center point of the coil, where B is the 7 mT, z/l is the normalized distance from the coil center along the z-axis, x/2r is the normalized distance from the solenoid center along the x-axis, l is the coil length, 21 cm, and 2r is the coil inner diameter, 19 cm