Two-dimensional approach to fluorescence yield XANES measurement using a silicon drift detector

Y. Tamenori, M. Morita, T. Nakamura

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

The objective of this article is to describe the capability of a two-dimensional (2D) approach to X-ray absorption near-edge structure (XANES) measurement by means of a partial fluorescence yield (PFY) method. 2D-XANES measurements were achieved by using a silicon drift detector as an energy-dispersive fluorescence detector. The advantage of this technique is that it allows full surveys of X-ray fluorescence data that are lost in conventional PFY measurements. The availability of a map approach was demonstrated by applying it to XANES measurements in both a diluted (Mn-doped nano-diamond) and a concentrated (MnO crystal) manganese sample. The 2D approach clearly distinguished between the PFY spectra of Mn and O atoms, where absorption edges of both elements are close to each other. Further, the 2D approach extracted an unambiguous PFY spectrum of phosphorus in the XANES measurement of SS304 (P < 0.045 wt%).

Original languageEnglish
Pages (from-to)747-752
Number of pages6
JournalJournal of Synchrotron Radiation
Volume18
Issue number5
DOIs
Publication statusPublished - 2011 Sep
Externally publishedYes

Keywords

  • XANES
  • map approach
  • partial fluorescence yield
  • silicon drift detector
  • soft X-rays

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Instrumentation

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