template LayerFoDi(50)
  int det
  parent ForDisk
  int lyr
  int nslice
  child FDSlice
  real z_local     ! local z of layer
  real thick       ! layer thickness
  real phi(2)      ! phi coverage of layer
  real dphi        ! size of each wedge in phi
  int type         ! type 2 = phi measurement
end template