Figure F8. The profile of the field in the magnetically shielded area associated with the cryogenic magnetometer and AF demagnetization coils. The two centrally located peaks in an otherwise near-zero magnetic field region correspond to the bolted joints at which separate shielding metal segments are joined. The horizontal scale is in inches, corresponding to the instrument diagrams of the manufacturer. The cryogenic magnetometer occupies the region between 0 and 200 in; the AF demagnetization coils are located at ~225-255 in. The cores pass through the entire region.