correct_projdata Parameters := 

  input file := my_prompts.hs
  output filename := my_precorrected_sino.hs
  ; use data (1) or set to one (0) := 
  apply (1) or undo (0) correction := 1
  randoms projdata filename := my_randoms.hs
  
  Bin Normalisation type := from projdata
    Bin Normalisation From ProjData :=
    ; only attenuation here for this simulation
    normalisation projdata filename:= my_acfs.hs
    End Bin Normalisation From ProjData:=

  ; scatter term to be subtracted AFTER norm+atten correction
  ; defaults to 0
  ;scatter projdata filename := scatter.hs

END:= 
