content: !INTERFILE  :=
  !version of keys := STIR4.0
  !imaging modality := PET
  
  name of data file := PET_Interfile_header.s
  originating system := unknown
  !GENERAL DATA :=
  !GENERAL IMAGE DATA :=
  ; optional keywords specifying patient position
  patient rotation := supine
  patient orientation := head_in
  
  !type of data := PET
  imagedata byte order := LITTLEENDIAN
  !PET STUDY (General) :=
  !PET data type := Emission
  applied corrections := {None}
  !number format := float
  !number of bytes per pixel := 4
  number of dimensions := 4
  matrix axis label [4] := segment
  !matrix size [4] := 1
  matrix axis label [3] := view
  !matrix size [3] := 32
  matrix axis label [2] := axial coordinate
  !matrix size [2] := { 8}
  matrix axis label [1] := tangential coordinate
  !matrix size [1] := 35
  minimum ring difference per segment := { 0}
  maximum ring difference per segment := { 0}
  
  ; optional keywords specifying frame duration etc
  ; These are not according to the Interfile 3.3 specification
  ; Currently only useful in STIR for dynamic applications
  ; (but a "time frame" is considered to be all projections acquired at the same time)
  number of time frames := 1
  image duration (sec)[1] := 3
  image relative start time (sec)[1] := 1
  
  number of energy windows:=1
  ; lower/upper level (in keV)
  energy window lower level[1]:=425
  energy window upper level[1]:=650
  
  Scanner parameters:= 
  Scanner type := unknown
  ; energy resolution as a fraction at the reference energy
  Energy resolution := 0.145
  Reference energy (in keV) := 511
  
  Number of rings                          := 8
  Number of detectors per ring             := 64
  Inner ring diameter (cm)                 := 65.6
  Average depth of interaction (cm)        := 0.7
  Distance between rings (cm)              := 3.25
  View offset (degrees)                    := 0
  end scanner parameters:=
  !END OF INTERFILE :=
  