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The Molybdenum K-shell X-ray Emission Spectrum.

Marcus H Mendenhall1, Lawrence T Hudson1, Csilla I Szabo2,1

  • 1National Institute of Standards and Technology, 100 Bureau Dr., Gaithersburg MD 20899, USA.

Journal of Physics. B, Atomic, Molecular, and Optical Physics : an Institute of Physics Journal
|February 28, 2020
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Summary
This summary is machine-generated.

Newly measured X-ray emission spectra of molybdenum (Mo) reveal discrepancies in KL, KM, and KN lines compared to existing literature. These high-precision measurements offer a refined understanding of X-ray spectra.

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Area of Science:

  • Atomic Physics
  • X-ray Spectroscopy
  • Materials Science

Background:

  • Accurate X-ray emission spectra are crucial for various scientific and industrial applications.
  • Previous measurements of molybdenum X-ray spectra have shown inconsistencies.

Purpose of the Study:

  • To present newly measured X-ray emission spectra of a molybdenum metal anode.
  • To provide high-precision data for dipole-allowed KL, KM, and KN emission lines.
  • To compare new measurements with existing literature data.

Main Methods:

  • Utilized a very high dispersion silicon double-crystal spectrometer for spectral measurements.
  • Employed an energy scale traceable to the SI definition of the meter with high accuracy.
  • Fitted the spectral data using parametrized multi-Lorentzian functions.
  • Corrected the supplementary data for instrumental effects.

Main Results:

  • The molybdenum KL3 (Kα1) line energy was in statistical agreement with published data and showed no asymmetry.
  • Significant discrepancies were observed for other measured lines (KM, KN) compared to literature values.
  • These discrepancies fall outside the expected experimental error margins.

Conclusions:

  • The study provides high-accuracy spectral data for molybdenum X-ray emission.
  • The observed discrepancies highlight potential issues with previous measurements or theoretical models.
  • Further investigation is warranted to resolve the discrepancies in KM and KN emission lines.