Method of measurements with random perturbation: application in photoemission experiments.

نویسندگان

  • D S Fedin
  • O N Granichin
  • Yu S Dedkov
  • S L Molodtsov
چکیده

We report on an application of a simultaneous perturbation stochastic approximation (SPSA) algorithm to filtering systematic noise (SN) with nonzero mean value in photoemission data. In our analysis, we have used a series of 50 single-scan photoemission spectra of W(110) surface where different SNs were added. It was found that the SPSA-evaluated spectrum is in good agreement with the spectrum measured without SN. On the basis of our results, a wide application of SPSA algorithm for evaluation of experimental data is anticipated.

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عنوان ژورنال:
  • The Review of scientific instruments

دوره 79 3  شماره 

صفحات  -

تاریخ انتشار 2008