5 FieldDescriptions: [ { UseField: 0 # 0--off 1--Constant field
6 # 2--Field map (not implemented)
7 ConstantField: [ 0.0, 0.0, 0.0 ]
8 MagnetizedVolume: "volWorld" } ]
9 service_provider: MagneticFieldServiceStandard
12 no_mag_larsoft: @local::no_mag