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Surface chemical analysis - X-ray photoelectron spectrometers - Calibration of energy scales
ISO 15472:2010 specifies a method for calibrating the binding-energy scales of X‑ray photoelectron spectrometers, for general analytical purposes, using unmonochromated Al or Mg X‑rays or monochromated Al X‑rays. It is only applicable to instruments which incorporate an ion gun for sputter cleaning.
It further specifies a method to establish a calibration schedule, to test for the binding-energy scale linearity at one intermediate energy, to confirm the uncertainty of the scale calibration at one low and one high binding-energy value, to correct for small drifts of that scale and to define the expanded uncertainty of the calibration of the binding-energy scale for a confidence level of 95 %. This uncertainty includes contributions for behaviours observed in interlaboratory studies but does not cover all of the defects that could occur.
ISO 15472 is not applicable to:
It does not provide a full calibration check, which would confirm the energy measured at each addressable point on the energy scale and which would have to be performed in accordance with the manufacturer's recommended procedures.
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