The schematic shown above illustrates the use of NSFs on the BT-7, triple axis spectrometer. In this configuration, a NSF is used as both the polarizer and the analyzer. On the polarizer side (upstream of sample), a 3He cell is located inside a mumetal shielded box or "MAGIC" Box or a mumetal shielded solenoid. On the analyzer side (downstream of sample), a 3He cell is located inside a mumetal shielded solenoid. The polarization of each 3He cell is monitored using in-situ NMR. All Triple Axis publication can be found here.
Powerpoint slide provided for presentation use: Neutron Spin Filters on BT-7