Degree of circular polarization of soft X-rays emitted from a multi-polarization-mode undulator characterized by means of magnetic circular dichroism measurements

Masaki Oura, Tetsuya Nakamura, Tomoyuki Takeuchi, Yasunori Senba, Haruhiko Ohashi, Katsutoshi Shirasawa, Takashi Tanaka, Masao Takeuchi, Yukito Furukawa, Toko Hirono, Toru Ohata, Hideo Kitamura, Shik Shin

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

The degree of circular polarization of soft X-rays emitted from the multi-polarization-mode undulator of BL17SU at SPring-8 has been deduced by means of magnetic circular dichroism in core-level X-ray absorption spectroscopy for a ferrimagnetic Gd-Fe-Co amorphous thin film. The results of reference measurements performed using well characterized undulator radiation of BL25SU at SPring-8 have also been utilized. The degrees of circular polarization were presumed for all the available operational modes and were compared with simple theoretical calculations. It was found that the calculated degrees of circular polarization were validated by the measurements reasonably well and will be useful in further experiments at BL17SU.

Original languageEnglish
Pages (from-to)483-486
Number of pages4
JournalJournal of Synchrotron Radiation
Volume14
Issue number6
DOIs
Publication statusPublished - 2007 Oct 17
Externally publishedYes

Keywords

  • Degree of circular polarization
  • Magnetic circular dichroism
  • Multi-polarization-mode undulator
  • X-ray absorption spectroscopy

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Instrumentation

Fingerprint Dive into the research topics of 'Degree of circular polarization of soft X-rays emitted from a multi-polarization-mode undulator characterized by means of magnetic circular dichroism measurements'. Together they form a unique fingerprint.

Cite this