Overall Energy Resolution (eV):
                             
                        Calibration:
                            Au4f7    = 84.00, Fe2p3 = 706.86
 
                        Charge Reference:
                            Conductor
 
                        Energy Scale Evaluation:
                            Reliable (reported energy within 300 eV of a reference energy)
 
                        Comment:
                            Carburization was carried out at 523  K to 548 K either in flowing ethylene or a 3:1 H2/CO mixture.